This dataset includes over five million health care providers who are assigned National Provider Identifier (NPI) in the National Plan and Provider Enumeration System (NPPES), developed by the Centers for Medicare & Medicaid Services (CMS). Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under Health Insurance Portability and Accountability Act (HIPAA). Each provider is registered with the NPI, full name, status, address, taxonomy, other identifiers, etc.
| Subject | Transparency and Disclosure |
| Jurisdiction | Federal |
| Data Provider | National Plan and Provider Enumeration System (NPPES), by the Centers for Medicare & Medicaid Services (CMS) |
| Source | download.cms.gov |
The National Provider Identifier (NPI) is a Health Insurance Portability and Accountability Act (HIPAA) Administrative Simplification Standard. The NPI is a unique identification number for covered health care providers and all health plans and health care clearinghouses, who must use the NPIs in the administrative and financial transactions adopted under HIPAA. The NPI is a 10-position, intelligence-free numeric identifier (10-digit number). All health care providers who are HIPAA-covered entities, whether individuals or organizations, must get an NPI. A HIPAA-covered entity is a health care provider that conducts certain transactions in electronic form, or a health care clearinghouse, or a health plan (including commercial plans, Medicare, and Medicaid). Centers for Medicare & Medicaid Services (CMS) has developed the National Plan and Provider Enumeration System (NPPES) to assign unique identifiers to health care providers. The National Provider Indentifier (NPI) has been the standard identifier for all HIPAA-covered entities (health care providers) since May 23, 2007. Small health plans were required to obtain and use an NPI by May 23, 2008. This dataset includes over five million health care providers (individuals and organizations) who are assigned NPI. The provider data elements are disclosed to the public by the Centers for Medicare & Medicaid Services (CMS) under the Freedom of Information Act (FOIA), as listed in the NPPES Data Dissemination Notice (CMS-6060-N). The NPI final rules define the following elements which required to be disclosed as determined by Department of Health & Human Services (HHS): NPI, Entity Type, Provider Name, Credential, Business Mailing Address, Business Location Address, Healthcare Provider Taxonomy Code, Other Provider Identifier, Provider Enumeration Date, NPI Deactivation Date, Provider License Number, Authorized Official Name and Contact Information. |
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Cheng Chang | 725 Welch Road, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2026-04-24 |
| Daniel Alexander Alber | 870 Quarry Rd Extension, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2026-03-26 |
| Manisha Desai | 3180 Porter Drive, Palo Alto, CA 94304 | Health Educator | 2025-07-29 |
| Alexander Eric Doan | 780 Welch Rd, 3rd Floor, Suite Cj350, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2025-03-26 |
| Olivia Marais | 213 Quarry Road, 4th Floor, Room 4871, Palo Alto, CA 94304 | Epilepsy Physician | 2024-07-09 |
| Gabriel Aaron Weininger | Falk Building 870 Quarry Rd Extension, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2023-04-28 |
| Russell Keller Catania · Russell Leroy Keller III | 734 Welch Road, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2023-03-22 |
| Ann Mary Mitchell Ellsworth | 180 El Camino Real, Suite 1199, Second Floor, Office 216, Palo Alto, CA 94304 | Acute Care Clinical Nurse Specialist | 2023-03-15 |
| Hsun-Tzu Chen | Audiology and Speech Pathology, 3801 Miranda Ave, Palo Alto, CA 94304 | Speech-Language Pathologist | 2023-02-06 |
| J Richelcyn Baclay Oo · J Richelcyn Montero Baclay | Cj Huang Building, 780 Welch Road, 3rd Floor, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2022-05-25 |
| Alexander Keith Reed | 870 Quarry Rd Ext, Falk Cardiovascular Research Building, Palo Alto, CA 94304 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 2022-04-29 |
| Tim Szilagyi Gemesi | 453 Quarry Road Dept of Obgyn Mc 5317, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2022-03-15 |
| May Wu | 725 Welch Road, Ste 3305, Pharmacy Department Mc5921, Palo Alto, CA 94304 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | 2021-08-20 |
| Amanda Yaworski | 213 Quarry Road, Mc 5979, Stanford Neuroscience Health Center, 213 Quarry Road, M, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2021-07-06 |
| Konstantinos Stathogiannis | Stanford University, 870 Quarry Road, Palo Alto, CA 94304 | Cardiovascular Disease Physician | 2021-06-23 |
| Catherine Alexandra Raney | 725 Welch Road, West Building, Room G71, Mail Code 5906, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2021-05-14 |
| Jessica Laird-Gion | 750 Welch Road, Suite 305, Mc: 5731, Palo Alto, CA 94304 | Pediatric Cardiology Physician | 2021-03-29 |
| Mary Allison Smithers | 3145 Porter Dr., Wing B, Mc 5395, Palo Alto, CA 94304 | Pediatrics Physician | 2021-03-22 |
| Richard Engdahl | 820 Quarry Road, Mc1078 Hf006, Palo Alo, CA 94304 | Biomedical Engineer | 2020-07-04 |
| Lily Wenya Zhou | 780 Welch Road, Suite 350, Stanford Stroke Center, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2020-06-08 |
| Perry Seo Choi | Dept of Cardiothoracic Surgery, Falk Building, 870 Quarry Rd, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2020-04-14 |
| Daniela Aguilar Abisad | 453 Quarry Road, Pediatric Endocrinology Mc: 5660, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2020-03-26 |
| Christina Gee Alvidrez | 3901 Miranda Ave, Palo Alto, CA 94304 | Physical Therapist | 2019-06-18 |
| Cora Steindl | 300 Pasteur Drive Rm H2512, Stanford, CA 94304 | Nurse Practitioner | 2019-03-25 |
| Xi Du Plummer | 453 Quarry Road, 4th Floor, Department of Ob/Gyn, Palo Alto, CA 94304 | Obstetrics & Gynecology Physician | 2019-03-25 |
| Lye-Yeng Wong | 870 Quarry Rd, Palo Alto, CA 94304 | Surgery Physician | 2019-03-16 |
| Jonathan Robert Hootman | 701 Welch Rd, Bldg C Mc 5777, Mountain View, CA 94304 | Emergency Medicine Physician | 2018-04-02 |
| Adam C Maclellan | Stanford Stroke Center, 780 Welch Road, Suite 350, Palo Alto, CA 94304 | Vascular Neurology Physician | 2017-09-19 |
| Chanel Beaudoin Cloutier | 770 Welch Road, Suite 400, Palo Alto, CA 94304 | Plastic Surgery Physician | 2017-07-21 |
| Amalia Robles | 3801miranda Ave., Dept. of Veterans Affairs, Palo Alto, CA 94304 | Dental Assistant | 2016-04-28 |
| Michelle Marie O'Shaughnessy | 777 Welch Road, Suite De, Stanford School of Medicine, Nephrology Division, Palo Alto, CA 94304 | Nephrology Physician | 2016-03-18 |
| Eric Hao-Chung Lee | 3801 Miranda Ave (116b), Palo Alto, CA 94304 | Clinical Psychologist | 2015-06-02 |
| Matthew Stevenson | 3801 Miranda Avenue, Building 5, C365, Palo Alto, CA 94304 | Internal Medicine Physician | 2015-03-26 |
| Jariya Keeler | 707 Leahy Street Apartments #319, Redwood City, CA 94304 | General Acute Care Hospital | 2013-03-28 |
| Jessica Ann Lohnberg | 3801 Miranda Ave. (116b), Palo Alto, CA 94304 | Psychologist | 2012-08-30 |
| Harriette Lucretia Cater | 3601 Miranda Ave, Bldg 2 Unit 2b1, Palo Alto, CA 94304 | Social Worker | 2012-02-21 |
| Noelle Kay Hasson | 3801 Miranda Avenue (Mail Code 119), Palo Alto, CA 94304 | Pharmacist | 2012-02-16 |
| Audrey Kim Moore · Audrey Kim Langhorn | 725 Welch Rd., Palo Alto, CA 94304 | Neonatal Nurse Practitioner | 2011-05-23 |
| Donna Weishin Lee | 770 Welch Road, Suite 100, Palo Alto, CA 94304 | Registered Nurse | 2010-10-01 |
| Jeffrey Deja | 3801 Miranda Ave. (Mail Code 117), Va Palo Alto Health Care System, Palo Alto, CA 94304 | Physical Therapist | 2010-09-22 |
| Stanford University School of Medicine | 1000 Welch Road, Room 202h, Palo Alto, CA 94304 | Children' s Chronic Disease Hospital | 2010-09-20 |
| Kan Lu | 3801 Miranda Ave, Pharmacy Service (119), Va Palo Alto Health Care System, Palo Alto, CA 94304 | Pharmacist | 2010-04-12 |
| Maria L. Daehler | 780 Welch Road, Ste. #207, Palo Alto, CA 94304 | Psychiatric/Mental Health Registered Nurse | 2009-06-03 |
| Rohini Arramreddy | 777 Welch Road, Suite De, Room D100, Palo Alto, CA 94304 | Internal Medicine Physician | 2009-04-13 |
| Christina Martinez · Chris Martinez | 3801 Miranda Ave., #122/Pad, Palo Alto Va Hcs, Palo Alto, CA 94304 | Clinical Social Worker | 2009-04-06 |
| Ian Yu-Hsiang Lin | 3801 Miranda Ave (160), Palo Alto, CA 94304 | Dentist | 2007-06-18 |
| Mark Pratt | 703 Welch Road, Suite F-6, Palo Alto, CA 94304 | Clinical Psychologist | 2007-05-23 |
| Kirsti Gay Catton · Kirsti Rankin | 750 Welch Rd Ste 321, Palo Alto, CA 94304 | Nurse Practitioner | 2007-04-20 |
| Nancy Bishop-Abney | 3401 Miranda Ave., Palo Alto, CA 94304 | Specialist | 2007-03-06 |
| Thomas Murray Krummel | 701b Welch Road, Suite 225, Palo Alto, CA 94304 | Specialist | 2007-02-13 |
| Michelle A Demarta Dmd Inc | 703 Welch Road, Suite D6, Palo Alto, CA 94304 | Dentist | 2007-01-22 |
| William Frank Novotny | Vapa Health Care Systems, 3801 Miranda Ave, Palo Alto, CA 94304 | Hematology & Oncology Physician | 2006-12-01 |
| Barton Lane | 3801 Miranda Avenue Vapahcs, Radiology 114, Palo Alto, CA 94304 | Neuroradiology Physician | 2006-11-08 |
| Mary K. Goldstein · Mary Kane | Va Palo Alto Health Care System; Grecc 182b, 3801 Miranda Avenue, Palo Alto, CA 94304 | Geriatric Medicine (Family Medicine) Physician | 2006-10-04 |
| Walton T Roth | Vapahcs (116f-Pad), 3801 Miranda Ave., Palo Alto, CA 94304 | Psychiatry Physician | 2006-10-04 |
| Kendra Peterson | Neurology Dept. Mc 127, 3586 Miranda Ave., Palo Alto, CA 94304 | Neurology Physician | 2006-10-03 |
| Carol J Thomas | 1101 Welch Road, Suite C5, Palo Alto, CA 94304 | Endocrinology, Diabetes & Metabolism Physician | 2006-09-21 |
| Jon Craig Kosek | C/O Lab Service (113) Veterans Hospital, 3801 Miranda Ave, Palo Alto, CA 94304 | Anatomic Pathology & Clinical Pathology Physician | 2006-09-19 |
| Linda Merle Rosen | 3801 Miranda Avenue (126lvd), Vapahcs, Palo Alto, CA 94304 | Speech-Language Pathologist | 2006-09-05 |
| Bette U Kiernan | 1540 Oak Creek Drive, #407, Palo Alto, CA 94304 | Mental Health Counselor | 2006-08-05 |
| Marie Macy | Va Medical Center Mail Code 112-C, 3801 Miranda Ave, Palo Alto, CA 94304 | Adult Health Nurse Practitioner | 2006-06-08 |
| Vj Periyakoil | 3801, Miranda Avenue, 100-2c, Palo Alto, CA 94304 | Geriatric Medicine (Internal Medicine) Physician | 2006-06-02 |
| Laura Jean Peters · Laura Peters Katz | Vapahcs Wbrc 124, 3801 Miranda Avenue, Palo Alto, CA 94304 | Rehabilitation Psychologist | 2006-06-01 |
| Eileen Marie Hayes | Va Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304 | Occupational Therapist | 2005-12-30 |
| John Hoang Duong-Tran | 770 Welch Rd Ste 435, Palo Alto, CA 94304 | Pediatrics Physician | 2005-08-25 |
| Dalena Mai Thi Huong Ha Ha | 3801 Miranda Ave, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2025-07-01 |
| Jordan Burgess | 453 Quarry Road, Dept. of Obgyn, Mc 5137, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2025-05-30 |
| Lilyane Saleh | 453 Quarry Road, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2025-05-20 |
| Abigail Ludwigson | 453 Quarry Road, Dept of Obgyn, Mc 5137, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2025-04-28 |
| Sunita Nigam | 3801 Miranda Ave, Palo Alto, CA 94304 | Ambulatory Care Registered Nurse | 2024-11-27 |
| Ethan Dinh-Khoa Nguyen | 3801 Miranda Ave, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2024-10-23 |
| Long Luu | 3801 Miranda Ave, Palo Alto, CA 94304 | Registered Nurse | 2024-09-25 |
| Rebecca Ann Krasnoff | 725 Welch Rd, Mc: 5906, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2024-04-22 |
| Victoria Marie Navarro | 725 Welch Rd, Palo Alto, CA 94304 | Registered Dietitian | 2024-04-12 |
| Graciela Caraballo | 453 Quarry Road, Dept. of Obgyn Mc 5317, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2023-05-05 |
| Lauren Jill Tostrud | 453 Quarry Road, Department of Obstetrics and Gynecology Mc #5317, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2023-04-26 |
| Josh Taylor | 401 Quarry Road, Stanford, CA 94304 | Student in an Organized Health Care Education/Training Program | 2023-03-21 |
| Deeann Minor | 3801 Miranda Ave, Bldg 520 Unit A, Palo Alto, CA 94304 | Social Worker | 2022-11-30 |
| Hannah Moran | 453 Quarry Road, Dept of Obgyn Mc 5317, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2022-04-05 |
| Jennifer Katsaros | 3801 Miranda Ave, Bldg 7, Rm#B125, Palo Alto, CA 94304 | Acupuncturist | 2022-02-19 |
| Chantel M. Ulfig | 3801 Miranda Ave, Psychology Service (116b), Palo Alto, CA 94304 | Clinical Psychologist | 2022-01-04 |
| Tamara Barboza | 3801 Miranda Ave., Building 100, Room A4-176, Palo Alto, CA 94304 | Occupational Therapist | 2021-09-30 |
| David Alexander Obert | Department of Emergency Medicine, 900 Welch Road, Suite 350, Palo Alto, CA 94304 | Emergency Medicine Physician | 2020-09-03 |
| Shilpa Nataraj | 750 Welch Rd, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2020-04-03 |
| Dora Shirly Alvarez | 725 Welch Road, Palo Alto, CA 94304 | Pediatrics Physician | 2020-03-26 |
| Sandy On | 875 Blake Wilbur Dr, 2nd Floor Clinic G Hematology, Stanford, CA 94304 | Pharmacist | 2019-12-27 |
| Dawna Jean Sawatzky | 3801 Miranda Avenue, Palo Alto, CA 94304 | Attendant Care Provider | 2019-08-29 |
| Jennifer Kim · Jennifer Choi | 870 Quarry Rd, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2019-04-08 |
| Stefan Elde | 870 Quarry Rd, Palo Alto, CA 94304 | Student in an Organized Health Care Education/Training Program | 2019-04-04 |
| Daphne Darmawan | 453 Quarry Road, Neonatology Mc 5660, Palo Alto, CA 94304 | Pediatrics Physician | 2019-03-20 |
| Adrianna Marie Mcmanus | 180 El Camino Real, Ste M384 Office 230, Palo Alto, CA 94304 | Athletic Trainer | 2018-09-12 |
| Deborah Menet | 725 Welch Road, Palo Alto, CA 94304 | Clinical Social Worker | 2018-07-26 |
| Elisabeth Martin | 725 Welch Rd, Palo Alto, CA 94304 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 2018-07-19 |
| Lauren Alexis Rachel Correll · Lauren Rachel Correll | 3801 Miranda Ave, Psychology Service (116b), Palo Alto, CA 94304 | Health Psychologist | 2018-07-17 |
| Ahmed Salama Ahmed Abdelmeguid | 801 Welch Rd, Palo Alto, CA 94304 | Otolaryngology Physician | 2018-06-17 |
| Loren Marie Monticelli · Loren Marie Farao | 875 Blake Wilbur Dr, Palo Alto, CA 94304 | Nurse Practitioner | 2018-03-26 |
| Lauren Reis | 3801 Miranda Ave, Pharmacy Service 119, Palo Alto, CA 94304 | Pharmacist | 2017-09-26 |
| Danielle Romero | 725 Welch Rd, Palo Alto, CA 94304 | Pediatric Nurse Practitioner | 2017-07-24 |
| Kaia Barsky | 3801 Miranda Avenue, Building 7 -- E-137, Palo Alto, CA 94304 | Occupational Therapist | 2017-06-08 |
| Long Hoang Kim Cao | 3801 Miranda Ave, Palo Alto, CA 94304 | General Practice Dentistry | 2017-06-05 |