NPPES file of Aug 9, 2026

Jason B. Guillian, MD

Anesthesiology Physician · Washington, DC

Jason B. Guillian, MD is an anesthesiology physician with a practice address in Washington, District of Columbia, and NPI 1295927515, issued on Aug 10, 2007. Check the license (District of Columbia MD036838, as entered in NPPES) 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295927515
Name
Jason B. Guillian
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
MD036838 DC
Self-reported in NPPES; status is on the state search
Practice location
3800 Reservoir RD NW, Washington, DC 20007
Phone
(202) 444-1301
Enumerated
Aug 10, 2007
Record last updated
Jun 17, 2024
Medicare enrollment
Enrolled (PECOS I20071011000587); accepts Medicare assignment
Medical or professional school
University Of South Carolina School Of Medicine, 1999
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 3800 Reservoir RD NW

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

  1. Miriam Abadie, M.D.Student in an Organized Health Care Education/Training Program1194168120
  2. Kathleen AbalosInternal Medicine Physician1831451764
  3. Fuad AbbasStudent in an Organized Health Care Education/Training Program1467256834
  4. Valiollah AbbassiPediatric Endocrinology Physician1073511275
  5. Ahmed AbdelfatahStudent in an Organized Health Care Education/Training Program1326918269
  6. Zeinab Abdi, M.D.Pediatrics Physician1861781437

Verify Jason B. Guillian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD036838
    Check 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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Bills Medicare through one group practice

  1. Medstar Medical Group II LLCWashington, DC

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

Jason B. Guillian among 317 anesthesiology physician records in District of Columbia

Jason B. Guillian, MD is one of 317 anesthesiology physician records with a practice address in District of Columbia. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.

  • NPI issued2007 · 49% of these records are older, 45% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1999 · median 2006 among the 222 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X 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).

Anesthesiology Physician providers in District of Columbia

There are 317 anesthesiology physician records in District of Columbia.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Michelle Burnett, MDWashington, DC 200071376542381
  2. Ellen De Groof, MDWashington, DC 200071528009891
  3. Kerry DegrootWashington, DC 200071518965573
  4. Medhat HannallahWashington, DC 200071366440174
  5. Bideshwar KatariaWashington, DC 200071255330536
  6. Chin KimWashington, DC 200071619976875
  7. Young Duk KimWashington, DC 200071124027271
  8. Don LeeWashington, DC 200071457351280

Common questions

What is Jason B. Guillian, MD's NPI number?

Jason B. Guillian, MD's National Provider Identifier (NPI) is 1295927515, issued on Aug 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jason B. Guillian, MD located?

The NPPES record lists a practice address at 3800 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 444-1301. Providers update this record themselves, so call before visiting.

How can I verify Jason B. Guillian, MD's license?

NPPES lists District of Columbia license number MD036838, as entered by the provider. 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.

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.