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NAPA VALLEY NEPHROLOGY & INTERNAL MEDICINE MEDICAL GROUP, INC.
NPI 1073572582
Internal Medicine - Geriatric Medicine in Napa, CA

Active since March 22, 2006CLIA 05D0726287 · Waiver
3443 VILLA LN, SUITE 6, NAPA, CA 94558(707) 252-8407(707) 252-8335 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

About Napa Valley Nephrology & Internal Medicine Medical Group, Inc. NPPES

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

NAPA VALLEY NEPHROLOGY & INTERNAL MEDICINE MEDICAL GROUP, INC. (NPI 1073572582) is a healthcare organization registered as a geriatric medicine in Napa, California and active in the NPI registry since March 2006. The organization holds a CLIA Waiver certificate valid through August 31, 2026 and lists Tammy Hill, Business Manager, as its authorized official.

NPPES Registry Identity

NPI1073572582
Entity TypeOrganization
Primary Taxonomy207RG0300X
Legal Business NameNAPA VALLEY NEPHROLOGY & INTERNAL MEDICINE MEDICAL GROUP, INC.
Location Address3443 VILLA LN, SUITE 6Napa, CA 94558-6417
Mailing Address3443 Villa Ln, Suite 6Napa, CA 94558-6417 · (707) 252-8407 · Fax (707) 252-8335
Phone(707) 252-8407
Fax(707) 252-8335
Organization SubpartNo
Authorized OfficialTammy HillBusiness Manager · (707) 252-8407
Enumeration DateMarch 22, 2006
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1073572582 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedInternal Medicine · NephrologyTaxonomy 207RN0300X
3443 VILLA LN, Napa, CA 94558
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Other Identifiers 1

MedicaidGR0024510CA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0726287

Napa Valley Nephrology · Napa, CA
Active · expires Aug 31, 2026
CLIA Number05D0726287
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2024
Certificate Expiration DateAugust 31, 2026
Laboratory DirectorThomas T. Paukert
Laboratory Phone(707) 252-8407
Laboratory LocationNapa Valley Nephrology3443 Villa Lane Suite 6, Napa, CA 94558
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 17

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

WILLIAM HUSON AU.D.
Audiologist
3443 VILLA LN, SUITE 3
NAPA, CA 94558
Napa County (707) 252-0990
DR. THOMAS T. PAUKERT M.D.
Internal Medicine (Nephrology)
3443 VILLA LN, SUITE 6
NAPA, CA 94558
Napa County (707) 252-8407
KEIKO AIKAWA MD
Internal Medicine (Cardiovascular Disease)
3443 VILLA LN, STE 2
NAPA, CA 94558
Napa County (707) 253-8282
BRIAN JO MUNDY M.D.
Internal Medicine (Cardiovascular Disease)
3443 VILLA LN, SUITE 2
NAPA, CA 94558
Napa County (707) 253-8280
GASTROENTEROLOGY ASSOCIATES OF NAPA VALLEY
Internal Medicine (Gastroenterology)
3443 VILLA LN, SUITE 4
NAPA, CA 94558
Napa County (707) 257-0447
CARDIOLOGY CONSULTANTS OF NAPA VALLEY INC A MEDICAL CORPORATION
Internal Medicine (Cardiovascular Disease)
3443 VILLA LN, SUITE 2
NAPA, CA 94558
Napa County (707) 253-8280
DR. DAVID MICHAEL FREETO M.D.
Internal Medicine (Gastroenterology)
3443 VILLA LN, SUITE 4
NAPA, CA 94558
Napa County (707) 257-0447
SERGIO M MANUBENS MD
Internal Medicine (Interventional Cardiology)
3443 VILLA LN, SUITE 2
NAPA, CA 94558
Napa County (707) 253-8280

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 Napa Valley Nephrology & Internal Medicine Medical Group, Inc.'s NPI number?

The NPI number for Napa Valley Nephrology & Internal Medicine Medical Group, Inc. is 1073572582. It was assigned to this organization in the NPPES registry on March 22, 2006.

Where is Napa Valley Nephrology & Internal Medicine Medical Group, Inc. located?

Napa Valley Nephrology & Internal Medicine Medical Group, Inc. is located at 3443 Villa Ln Suite 6, Napa, CA 94558. The listed phone number is (707) 252-8407.

What is Napa Valley Nephrology & Internal Medicine Medical Group, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Does Napa Valley Nephrology & Internal Medicine Medical Group, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0726287) is associated with this NPI, valid through August 31, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Napa Valley Nephrology & Internal Medicine Medical Group, Inc. was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.