NPPES file of Aug 9, 2026

Harrison Sun

Neurology Physician · Washington, DC

Harrison Sun is a neurology physician with a practice address in Washington, District of Columbia, and NPI 1366079444, issued on Mar 26, 2020. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366079444
Name
Harrison Sun
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
22826 CA
OS024678C PA
Self-reported in NPPES; status is on the state search
Practice location
2150 Pennsylvania Ave NW, Washington, DC 20037
Phone
(202) 741-3000
Enumerated
Mar 26, 2020
Record last updated
May 1, 2025
Medicare enrollment
Enrolled (PECOS I20251222001383); accepts Medicare assignment
Medical or professional school
Campbell Univ School Of Osteopathic Medicine, 2020
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2150 Pennsylvania Ave NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmad AalamStudent in an Organized Health Care Education/Training Program1851786909
  2. Nawaf Abaalkhail, MDCritical Care Medicine (Internal Medicine) Physician1104246958
  3. Theophilus Abah, MDAnesthesiology Physician1245810696
  4. Yoosif Abdalla, MDNephrology Physician1679851760
  5. Rim Abdallah, M.D.Student in an Organized Health Care Education/Training Program1962896886
  6. Rami AbdulbakiAnatomic Pathology & Clinical Pathology Physician1851950109

Verify Harrison Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average neurology physician in 2024

36 Medicare Part D claims for 17 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Harrison Sun36
  2. Specialty average1,370

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. Adventist Physician Services IncRockville, MD
  2. Blue Sky Telehealth LLCRockville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Harrison Sun among 137 neurology physician records in District of Columbia

Harrison Sun is one of 137 neurology physician records with a practice address in District of Columbia. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.

  • NPI issued2020 · 93% of these records are older, 4% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2020 · median 2007 among the 84 with a school on file
  • Record last updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in District of Columbia

There are 137 neurology physician records in District of Columbia.

The 8 neurology physician records with the nearest ZIP codes

  1. Sawsan Alabbad, MDWashington, DC 200371033604749
  2. Shalini Bansil, MDWashington, DC 200371467429340
  3. Elham Bayat, MDWashington, DC 200371275566218
  4. Abdulrahman Bukhari, MDWashington, DC 200371821696485
  5. Pritha Ghosh, MDWashington, DC 200371932241957
  6. Henry Kaminski, M.D.Washington Dc, DC 200371104844695
  7. Panagiotis Kassavetis, M.D.Washington, DC 200371528473782
  8. Christopher Leon Guerrero, MDWashington, DC 200371336375179

Common questions

What is Harrison Sun's NPI number?

Harrison Sun's National Provider Identifier (NPI) is 1366079444, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Harrison Sun located?

The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-3000. Providers update this record themselves, so call before visiting.

How can I verify Harrison Sun's license?

Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Harrison Sun prescribe under Medicare Part D?

In 2024, Harrison Sun had 36 Medicare Part D claims for 17 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.