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WALTER J. ZAJAC MD
NPI 1679651343
Internal Medicine - Gastroenterology in Roseville, CA

Active since November 01, 2006
1600 EUREKA RD, ROSEVILLE, CA 95661(916) 784-4000 Get Directions Write a Review

NPPES record last updated: February 27, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Walter J. Zajac Md NPPES

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

WALTER J. ZAJAC MD (NPI 1679651343) is an individual gastroenterology provider in Roseville, California, licensed in California (G63354) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1679651343
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameWALTER J. ZAJACCredential: MD
Location Address1600 EUREKA RDRoseville, CA 95661-3027
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3429 · (510) 625-6262
Phone(916) 784-4000
Sole ProprietorNo
Enumeration DateNovember 1, 2006
Last NPPES UpdateFebruary 27, 2009
✔ NPI 1679651343 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · G63354
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1600 EUREKA RD, Roseville, CA 95661
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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.

DR. VESNA IVANCIC COCHELL MD
Urology
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4000
LYNN TUYET NGUYEN PHARM.D
Pharmacist
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4000
MR. BRYCE PHILLIP CARTWRIGHT PHYSICAL THERAPIST
Physical Therapist
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4954
QUAN T. NGUYEN MD
Hospitalist
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4000
JAMES H. HEYKES MD
Internal Medicine
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4000
MS. LINDA ROSE BROWN NP
Nurse Practitioner (Women's Health)
1600 EUREKA RD, WOMEN'S HEALTH , PERMANENTE MEDICAL GROUP
ROSEVILLE, CA 95661
Placer County (916) 784-5003
SCOTT W. ADAMS MD
Pediatrics (Pediatric Hematology-Oncology)
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4000
CAROL LYNN SCHULZ PHARM.D.
Pharmacist
1600 EUREKA RD
ROSEVILLE, CA 95661
Placer County (916) 784-4184

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 Walter Zajac's NPI number?

The NPI number for Walter Zajac is 1679651343. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Walter Zajac located?

Walter Zajac practices at 1600 Eureka Rd, Roseville, CA 95661. The listed phone number is (916) 784-4000.

What is Walter Zajac's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Walter Zajac was last updated on February 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.