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DR. GAGAN VIRK NIJJAR M.D.
NPI 1750674727
Psychiatry & Neurology - Psychiatry in Washington, DC

Active since May 24, 2011PECOS EnrolledAccepts Medicare Assignment
1100 ALABAMA AVE SE, WASHINGTON, DC 20032(202) 407-2116 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Gagan Virk Nijjar M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GAGAN VIRK NIJJAR M.D. (NPI 1750674727) is an individual psychiatry provider in Washington, District Of Columbia, licensed in California (A113271) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1750674727
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. GAGAN VIRK NIJJARCredential: M.D.
Location Address1100 ALABAMA AVE SEWashington, DC 20032-4540
Mailing Address5990 Richmond Hwy, Apt 709Alexandria, VA 22303-2745 · (619) 632-7364
Phone(202) 407-2116
Sole ProprietorYes
Medical School CMSOtherGraduated 2005
Enumeration DateMay 24, 2011
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1750674727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A113271
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1100 ALABAMA AVE SE, Washington, DC 20032
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gagan Virk Nijjar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052585767
PECOS Enrollment IDI20111115000452
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gagan Nijjar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2,381 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$194.86 typical visit price
range $65.18 – $194.86
Typical copayment $48.71 (range $16.29 – $48.71)
Most-billed visit code 99205
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARY UCHE KEMAKOLAM
Nurse Practitioner (Psychiatric/Mental Health)
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-5100
ELIZABETH IKPONWONSA OKUNDAYE
Student in an Organized Health Care Education/Training Program
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (443) 889-7046
ISA M ABU EL HAWA D.D.S
Dentist (General Practice)
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-5610
SAINT ELIZABETHS HOSPITAL DENTAL CLINIC
Clinic/Center (Dental)
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-5610
DR. MUSTAFA KAGHAZWALA D.O.
Student in an Organized Health Care Education/Training Program
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-5302
CHINYERE EUPHEMIA UZOUKWU PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-2746
HAIDER TARIQ BUTT MD
Student in an Organized Health Care Education/Training Program
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-5100
DR. LAUREN ELYSE HALE DDS
Student in an Organized Health Care Education/Training Program
1100 ALABAMA AVE SE
WASHINGTON, DC 20032
District of Columbia (202) 299-5610

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gagan Nijjar's NPI number?

The NPI number for Gagan Nijjar is 1750674727. It was assigned to this individual provider in the NPPES registry on May 24, 2011.

Where is Gagan Nijjar located?

Gagan Nijjar practices at 1100 Alabama Ave SE, Washington, DC 20032. The listed phone number is (202) 407-2116.

What is Gagan Nijjar's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Gagan Nijjar enrolled in Medicare?

Yes. Gagan Nijjar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Gagan Nijjar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gagan Nijjar reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gagan Nijjar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gagan Nijjar was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.