1. Home
  2. Directory
  3. California
  4. Napa
  5. General Practice
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JENNIFER LEIGH ANN ROSS MD, PHD
NPI 1538693718
General Practice in Napa, CA

Active since April 14, 2017PECOS Enrolled
1001 PROFESSIONAL DR, NAPA, CA 94558(707) 252-0494 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Aug 10, 2026, Apr 14, 2017 (2 updates tracked since 2017).

About Dr. Jennifer Leigh Ann Ross Md, Phd NPPES

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

DR. JENNIFER LEIGH ANN ROSS MD, PHD (NPI 1538693718) is an individual general practice provider in Napa, California, licensed in California (A134506) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1538693718
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameDR. JENNIFER LEIGH ANN ROSSCredential: MD, PHD
Location Address1001 PROFESSIONAL DRNapa, CA 94558-6413
Mailing Address1001 Professional DrNapa, CA 94558-6413 · (707) 252-0494
Phone(707) 252-0494
Sole ProprietorNo
Enumeration DateApril 14, 2017
Last NPPES UpdateAugust 10, 20262 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1538693718 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · A134506
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
Also ListedAnesthesiologyTaxonomy 207L00000X · License 134506 (CA)
1001 PROFESSIONAL DR, Napa, CA 94558
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jennifer Leigh Ann Ross Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Other Providers at the Same Location NPPES 6

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

MERRY D WIDMEYER PA
Physician Assistant (Medical)
1001 PROFESSIONAL DR
NAPA, CA 94558
Napa County (707) 252-0494
ALIREZA GOODARZI
Family Medicine
1001 PROFESSIONAL DR
NAPA, CA 94558
Napa County (707) 252-0494
JOHN FRANCIS DERMODY M.D.
Family Medicine
1001 PROFESSIONAL DR
NAPA, CA 94558
Napa County (707) 252-0494
PATRICK DERMODY MD
Family Medicine
1001 PROFESSIONAL DR
NAPA, CA 94558
Napa County (707) 252-0494
ANNE L HUNT FNP
Nurse Practitioner (Family)
1001 PROFESSIONAL DR
NAPA, CA 94558
Napa County (707) 252-0494
JUDITH P HALL FNP
Nurse Practitioner (Family)
1001 PROFESSIONAL DR
NAPA, CA 94558
Napa County (707) 252-0494

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 Jennifer Ross's NPI number?

The NPI number for Jennifer Ross is 1538693718. It was assigned to this individual provider in the NPPES registry on April 14, 2017.

Where is Jennifer Ross located?

Jennifer Ross practices at 1001 Professional Dr, Napa, CA 94558. The listed phone number is (707) 252-0494.

What is Jennifer Ross's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Is Jennifer Ross enrolled in Medicare?

Yes. Jennifer Ross is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Jennifer Ross was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 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.