Nak Hyun Choi is a Pediatric Cardiology Physician practicing in Washington, District Of Columbia. The National Provider Identifier (NPI) is #1780099168, which was assigned on June 24, 2014, and the registration record was last updated on July 25, 2025. The practitioner's main practice location is at 111 Michigan Ave Nw, Washington, DC 20010-2916; the contact telephone number is 8888842327, and the fax number is 2024763900. The primary taxonomy of Nak Hyun Choi is Pediatric Cardiology Physician (2080P0202X), with specialization in Pediatric Cardiology. Nak Hyun Choi is licensed to practice in the state of Connecticut (#56430), Delaware (#C1-0025287).
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
| NPI | 1780099168 |
| Entity Type | Individual |
| Provider Name | NAK HYUN CHOI |
| Other Name |
TOM CHOI (Other Name) |
| Gender | Male |
| Credential | M.D. |
| Other Credential | M.D. |
| Practice Address |
111 Michigan Ave Nw Washington DC 20010-2916 |
| Practice Telephone | 8888842327 |
| Practice Fax Number | 2024763900 |
| Mailing Address |
111 Michigan Ave Nw Washington DC 20010-2916 |
| Mailing Telephone | 8888842327 |
| Mailing Fax Number | 2024763900 |
| Certification Date | 2025-07-25 |
| Enumeration Date | 2014-06-24 |
| Last Update Date | 2025-07-25 |
| Is Sole Proprietor | N |
| PAC ID |
3274804893 Medicare Provider Enrollment and Chain/Ownership System (PECOS) Associate Control (PAC) ID |
| Full Name | NAK HYUN CHOI |
| Medical School | GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE |
| Primary Specialty | PEDIATRIC MEDICINE |
| Organization Legal Name | CHILDREN'S HOSPITAL |
| Address |
111 Michigan Ave Nw Washington DC 20010-2916 |
| Primary | Code | Classification | Specialization | Taxonomy Group | License Number | License State |
|---|---|---|---|---|---|---|
| N | 208000000X | Pediatrics | 56430 | CT | ||
| Y | 2080P0202X | Pediatrics | Pediatric Cardiology | C1-0025287 | DE |
| Code | 2080P0202X |
| Taxonomy | Pediatric Cardiology Physician |
| Classification | Pediatrics |
| Specialization | Pediatric Cardiology |
| Grouping | Allopathic & Osteopathic Physicians |
| Definition: A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease. |
| Notes: Source: American Board of Medical Specialties, 2007. www.abms.org [7/1/2007: definition added, source added; 7/1/2011: modified source] Additional Resources: American Board of Pediatrics, 2007. http://www.abp.org/. American Osteopathic Board of Pediatrics, 2007. http://www.osteopathic.org/certification Board certification for Medical Doctors (MDs) is provided by the American Board of Pediatrics. Board certification for Doctors of Osteopathy (DOs) was provided by the American Osteopathic Board of Pediatrics. The Certification is no longer offered. |
| Code | 208000000X |
| Taxonomy | Pediatrics Physician |
| Classification | Pediatrics |
| Grouping | Allopathic & Osteopathic Physicians |
| Definition: A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development. |
| Notes: Source: American Board of Medical Specialties, 2007. www.abms.org [7/1/2007: definition added, source added; 7/1/2011: modified source] Additional Resources: American Board of Pediatrics, 2007. http://www.abp.org/. American Osteopathic Board of Pediatrics, 2007. http://www.osteopathic.org/certificatio Board certification for Medical Doctors (MDs) is provided by the American Board of Pediatrics. Board certification for Doctors of Osteopathy (DOs) is provided by the American Osteopathic Board of Pediatrics. |
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Sreekanthan Sundararaghavan | 740, S Limestone Second Floor Wind D Room L203, Lexington, KY 40536-0001 | Pediatric Cardiology Physician | 2025-07-25 |
| Pediatrix Medical Group of Florida Inc | 301 N Alexander St, Plant City, FL 33563-4303 | Pediatric Cardiology Physician | 2021-06-08 |
| Sangeeta Dhammu | 1 Childrens Pl. 8116-0043-08, St Louis, MO 63110 | Pediatric Cardiology Physician | 2022-05-19 |
| Sylvana M. Hidalgo, M.D., Inc. | 1300 N Vermont Ave Ste 402, Los Angeles, CA 90027-6086 | Pediatric Cardiology Physician | 2025-05-29 |
| Pediatrix Medical Group of Florida, Inc | 1150 N 35th Ave Ste 490, Hollywood, FL 33021-5423 | Pediatric Cardiology Physician | 2021-07-22 |
| Healthone Clinic Services - Pediatric Specialties LLC | 10099 Ridgegate Pkwy Ste 300, Lone Tree, CO 80124-5534 | Pediatric Cardiology Physician | 2024-12-17 |
| Healthone Clinic Services - Pediatric Specialties LLC | 1000 W 8th Ave, Yuma, CO 80759-2641 | Pediatric Cardiology Physician | 2025-06-09 |
| University of California Sfgh Medical Group | 1001 Potrero Ave. Bldg. 5, Ms6e, San Francisco, CA 94110-3518 | Pediatric Cardiology Physician | 2024-09-16 |
| Nicklaus Children's Pediatric Specialists, LLC | 5458 Town Center Rd Ste 3, Boca Raton, FL 33486-1026 | Pediatric Cardiology Physician | 2025-08-11 |
| Healthone Clinic Services - Pediatric Specialties LLC | 1000 Lincoln St, Fort Morgan, CO 80701-3290 | Pediatric Cardiology Physician | 2025-07-28 |
| Find all providers with the same taxonomy | |||
| Street Address |
111 MICHIGAN AVE NW |
| City | WASHINGTON |
| State | DC |
| Zip Code | 20010-2916 |
| Country | US |
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Keandra Violeta Forte | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Pediatric Nurse Practitioner | 2025-06-24 |
| Michel Yuzik | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Anesthesiologist Assistant | 2025-08-26 |
| Ashley Hartmann | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Pediatric Nurse Practitioner | 2025-08-20 |
| Leena Khalid A Alshenaiber | 111 Michigan Ave Nw, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-04-18 |
| Christina Rose Drzewoszewski | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Physician Assistant | 2025-08-13 |
| Mariana Balthazar Nogueira Passos | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Hospice and Palliative Medicine (Family Medicine) Physician | 2025-07-15 |
| Marie Stephenson | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Pediatric Nurse Practitioner | 2025-05-07 |
| Stephen Chu | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Anesthesiologist Assistant | 2025-05-17 |
| Caroline Hu | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Pediatric Registered Nurse | 2025-04-25 |
| Paige Madison Ruffier | 111 Michigan Ave Nw, Washington, DC 20010-2916 | Pharmacist | 2025-07-23 |
| Find all providers in the same location | |||
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Sa'Ed Akram Sad Al Hayek | 110 Irving St, Nw Medstar Washington Hospital Center De, Washington Dc, DC 20010 | Student in an Organized Health Care Education/Training Program | 2024-04-05 |
| Basil Amarah Apaokwueze | 111 Michigan Avenue Nw, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-05-22 |
| Mahnoor Niaz | 110 Irving St Nw Dept of Internal Medicine, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-05-19 |
| Ana Isabel Prado | 111 Michigan Avenue, Nw Washington, Dc 20010, -, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-03-27 |
| Abdul Rahman Taha | 111 Michigan Avenue, Nw., Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2024-05-30 |
| Ronald Armando Cadillo Hernandez | 110 Irving Street. Nw Dept of Internal Medicine-Mwhc, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-04-16 |
| Ayesha Nasir Hameed | 110 Irving St. Nw Medstar Washington Hospital Center, D, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-04-21 |
| Abdallah Khaldoun Said Qtaishat | 110 Irving St. Nw, Department of Internal Medicine, Washington D.C., DC 20010 | Student in an Organized Health Care Education/Training Program | 2022-05-31 |
| Ahmad Ali Massad | 110 Irving St. Nw Dept of Internal Medicine, Medstar Washington Hospital Center, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2025-08-01 |
| Shahd Farajallah | 111 Michigan Ave. Nw, Washington, DC 20010 | Student in an Organized Health Care Education/Training Program | 2022-04-28 |
| Find all providers in the same zip code | |||
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Jaclynne Y. Magno-Choi · Jaclynne Y. Choi | 13310 Telegraph Rd, Santa Fe Springs, CA 90670-4016 | Optometrist | 2008-07-10 |
| Randall Yun Sok Choi | 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598-3122 | Anesthesiology Physician | 2007-01-24 |
| Kyu Wan Choi · Brian Choi | 26 Court St Ste 1507, Brooklyn, NY 11242-1115 | Periodontist | 2022-08-19 |
| Junghun Frederick Choi · Fred Choi | 9040 Jackson Ave Madigan Amc Hospital Dental Clinic, Tacoma, WA 98431-0001 | Dentist | 2021-10-12 |
| Sohyeon Choi · Adela Choi | 369 Lexington Ave Fl 16, New York, NY 10017-6525 | Physical Therapist | 2023-01-30 |
| Christopher Hyun-Bae Choi | 670 Albany St, Boston, MA 02118-2646 | Student in an Organized Health Care Education/Training Program | 2025-03-28 |
| Franchesca Choi · Yi-Hsuan Choi | 500 University Dr, Hershey, PA 17033-2360 | Dermatopathology Physician | 2021-05-25 |
| Joon Koo Choi · Paul Choi | 920 Madison Ave Ste 447, Memphis, TN 38163-3438 | Student in an Organized Health Care Education/Training Program | 2022-04-06 |
| Hanbyul Choi · Heidi Choi | 1300 Brea Canyon Cut Off Rd, Walnut, CA 91789-3401 | School Counselor | 2025-07-29 |
| Yunsun Choi · Ellie Choi | 4938 Fiadore Ln, Castle Rock, CO 80104-7332 | Music Therapist | 2025-07-08 |
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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. |