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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HARJUS SINGH BIRK M.D.
NPI 1275064396
Psychiatry & Neurology - Neurology in Sacramento, CA

Active since March 21, 2017
4301 X ST, SACRAMENTO, CA 95817(916) 734-6343 Get Directions Write a Review

NPPES record last updated: August 24, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Aug 24, 2026, Oct 13, 2023, Jul 21, 2022 and 3 more (6 updates tracked since 2017).

About Dr. Harjus Singh Birk M.d. NPPES

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

DR. HARJUS SINGH BIRK M.D. (NPI 1275064396) is an individual neurology provider in Sacramento, California, licensed in California (164164) and active in the NPI registry since March 2017.

NPPES Registry Identity

NPI1275064396
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. HARJUS SINGH BIRKCredential: M.D.
Location Address4301 X STSacramento, CA 95817-2214
Mailing Address4301 X StSacramento, CA 95817-2214
Phone(916) 734-6343
Sole ProprietorNo
Enumeration DateMarch 21, 2017
Last NPPES UpdateAugust 24, 20266 updates tracked since enumeration
NPPES CertifiedAugust 24, 2026
✔ NPI 1275064396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · 164164
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
4301 X ST, Sacramento, CA 95817
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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.

ALICIA MARIE MARZOLF RD
Dietitian, Registered
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (408) 219-5594
CHRISTINA SHARKEY MS, RD
Dietitian, Registered (Nutrition, Pediatric)
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-2011
RICARDO CARLOS OCAMPO MD
Student in an Organized Health Care Education/Training Program
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-2011
REX AMBATALI JR. AGACNP-BC, PMHNP-BC
Nurse Practitioner (Acute Care)
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-2011
CAITLYN KRISTINE BETTENCOURT RN
Nurse Anesthetist, Certified Registered
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-5058
NIAILAH OCHAI
Internal Medicine (Clinical Cardiac Electrophysiology)
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-2011
JONATHAN KIM
Anesthesiology
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 734-4611
PREET K MATHARU MD
Pediatrics
4301 X ST
SACRAMENTO, CA 95817
Sacramento County (916) 703-3050

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 Harjus Birk's NPI number?

The NPI number for Harjus Birk is 1275064396. It was assigned to this individual provider in the NPPES registry on March 21, 2017.

Where is Harjus Birk located?

Harjus Birk practices at 4301 X St, Sacramento, CA 95817. The listed phone number is (916) 734-6343.

What is Harjus Birk's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

When was this NPI record last updated?

The NPPES record for Harjus Birk was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.