Gagan Nijjar, M.D.
NPI 1750674727 · Psychiatry Physician · Washington, DC
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gagan Nijjar, M.D. is a Psychiatry Physician provider in Washington, DC (NPI 1750674727).
Provider details
- NPI number
- 1750674727
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A113271 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 48 |
| Lorazepam | 37 |
| Gabapentin | 35 |
| Mirtazapine | 27 |
| Duloxetine Hcl | 25 |
| Trazodone Hcl | 24 |
| Buspirone Hcl | 21 |
| Hydroxyzine Pamoate | 17 |
| Bupropion Hclbrand: Bupropion Xl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-24
- Last updated
- 2022-02-11
Frequently asked questions
- What is Gagan Nijjar's NPI number?
- Gagan Nijjar's National Provider Identifier (NPI) is 1750674727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gagan Nijjar's specialty?
- Gagan Nijjar is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gagan Nijjar located?
- Gagan Nijjar's practice location on file with NPPES is 1100 Alabama Ave Se, Washington, DC 20032-4540.
- What is Gagan Nijjar's phone number?
- The practice phone number listed in the NPPES registry for Gagan Nijjar is (202) 407-2116.
- Does Gagan Nijjar accept Medicare?
- Gagan Nijjar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gagan Nijjar's NPI active?
- Yes — Gagan Nijjar's NPI (1750674727) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.