NPPES file of Aug 9, 2026

Gagan Virk Nijjar, M.D.

Psychiatry Physician · Washington, DC

Gagan Virk Nijjar, M.D. is a psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1750674727, issued on May 24, 2011. 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
1750674727
Name
Gagan Virk Nijjar
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A113271 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Alabama Ave SE, Washington, DC 20032
Phone
(202) 407-2116
Enumerated
May 24, 2011
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20111115000452); accepts Medicare assignment
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 1100 Alabama Ave SE

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

  1. Isa Abu El Hawa, D.D.SGeneral Practice Dentistry1013686872
  2. Modupe AdenekanPsychiatric/Mental Health Nurse Practitioner1790340859
  3. Anushka Rajesh AgarwalStudent in an Organized Health Care Education/Training Program1114800307
  4. Juliana Akpama, NPPsychiatric/Mental Health Nurse Practitioner1578024162
  5. Fatimah Albrekkan, M.D.Psychiatry Physician1902254253
  6. Chizoba Anako, APRN-BCFamily Nurse Practitioner1144561655

Verify Gagan Virk Nijjar 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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58% fewer Medicare Part D claims than the average psychiatry physician in 2024

423 Medicare Part D claims for 59 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Gagan Nijjar423
  2. Specialty average1,000

Most prescribed

  1. Venlafaxine Hcl Er48 claims
  2. Lorazepam37 claims
  3. Gabapentin35 claims
  4. Mirtazapine27 claims
  5. Duloxetine Hcl25 claims
  6. Trazodone Hcl24 claims

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 one group practice

  1. Permanente Medical Group IncSan Francisco, CA

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

Gagan Virk Nijjar among 474 psychiatry physician records in District of Columbia

Gagan Virk Nijjar, M.D. is one of 474 psychiatry physician records with a practice address in District of Columbia. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 63% of them.

  • NPI issued2011 · 63% of these records are older, 35% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 26% of these records are
  • Graduated2005 · median 2005 among the 124 with a school on file
  • Record last updated2022 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X 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).

467 psychiatry physician records list a practice address in Washington

They are 467 of the 45,857 NPPES records with a practice address in Washington, and 474 psychiatry physician records in District of Columbia.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Joseph Alam, MD PSYCHIATRYWashington, DC 200321548441348
  2. Muhammad Atique, M.DWashington, DC 200321710214846
  3. Bennie Carter, MDWashington Dc, DC 200321417180233
  4. Asha Davis, M.D.Washington, DC 200321811177249
  5. Carmen Delvalle Ortiz, M.D.Washington, DC 200321699009449
  6. Feng Dong, M.D., PH.D.Washington, DC 200321780913616
  7. Aditi Malik, MDWashington, DC 200321053579540
  8. Xiaoqing Peng, MD, PHDWashington, DC 200321346509130

Common questions

What is Gagan Virk Nijjar, M.D.'s NPI number?

Gagan Virk Nijjar, M.D.'s National Provider Identifier (NPI) is 1750674727, issued on May 24, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Gagan Virk Nijjar, M.D. located?

The NPPES record lists a practice address at 1100 Alabama Ave SE, Washington, DC, 20032. Phone: (202) 407-2116. Providers update this record themselves, so call before visiting.

How can I verify Gagan Virk Nijjar, M.D.'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 Gagan Virk Nijjar, M.D. prescribe under Medicare Part D?

In 2024, Gagan Virk Nijjar, M.D. had 423 Medicare Part D claims for 59 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.