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

DENISE A. RETTENMAIER D.O.
NPI 1861468373
Internal Medicine - Geriatric Medicine in Yountville, CA

Q: What is Denise Rettenmaier's NPI number?

The NPI number for Denise Rettenmaier is 1861468373. It was assigned to this individual provider in the NPPES registry on February 24, 2006.

Q: What is Denise Rettenmaier's specialty?

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

Active since February 24, 2006PECOS Enrolled

220 CALIFORNIA DR, C/O MEDICAL STAFF OFFICE, YOUNTVILLE, CA 94599(707) 944-4716(707) 944-5052 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Denise A. Rettenmaier D.o. NPPES

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

DENISE A. RETTENMAIER D.O. (NPI 1861468373) is an individual geriatric medicine provider in Yountville, California, licensed in California (20A6474) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861468373

Entity TypeIndividualFemale

Primary Taxonomy207RG0300X

Provider Legal NameDENISE A. RETTENMAIERCredential: D.O.

Location Address220 CALIFORNIA DR, C/O MEDICAL STAFF OFFICEYountville, CA 94599-1412

Mailing AddressPo Box 942895Sacramento, CA 94295-0001 · (916) 653-0080 · Fax (916) 653-1795

Phone(707) 944-4716

Fax(707) 944-5052

Sole ProprietorNo

Enumeration DateFebruary 24, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1861468373 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in CA · 20A6474

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.

220 CALIFORNIA DR, Yountville, CA 94599

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Denise A. Rettenmaier D.o. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94599 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

$192.16 typical visit price

range $65.08 – $192.16

Typical copayment $48.04 (range $16.27 – $48.04)

Most-billed visit code 99205

Established Patient

$113.15 typical visit price

range $21.86 – $157.83

Typical copayment $28.28 (range $5.46 – $39.45)

Most-billed visit code 99214

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.

JOHN B BUDINGER D.O.

Psychiatry & Neurology (Psychiatry)

220 CALIFORNIA DR, C/O MEDICAL STAFF OFFICE
YOUNTVILLE, CA 94599

Napa County (707) 944-4716

DR. ROBERT P ALBANESE JR. MD

Psychiatry & Neurology (Psychiatry)

220 CALIFORNIA DR
YOUNTVILLE, CA 94599

Napa County (707) 944-4660

BARBARA G. REISMAN M.D.

Psychiatry & Neurology (Psychiatry)

220 CALIFORNIA DR
YOUNTVILLE, CA 94599

Napa County (707) 944-4772

RICHARD M MALAN M.D.

Dentist

220 CALIFORNIA DR
YOUNTVILLE, CA 94599

Napa County (707) 944-4716

WILLIAM S. ARNETT DDS

Dentist (General Practice)

220 CALIFORNIA DR
YOUNTVILLE, CA 94599

Napa County (707) 944-4772

CLYDE A. COOPER M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

220 CALIFORNIA DR, C/O MEDICAL STAFF OFFICE
YOUNTVILLE, CA 94599

Napa County (707) 944-4772

COURTNEY P. PERSINGER PSY.D.

Psychologist (Clinical)

220 CALIFORNIA DR
YOUNTVILLE, CA 94599

Napa County (707) 944-4771

SARAH SPANN MILLER PH.D.

Psychologist

220 CALIFORNIA DR
YOUNTVILLE, CA 94599

Napa County (707) 944-4716

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 Denise Rettenmaier's NPI number?

The NPI number for Denise Rettenmaier is 1861468373. It was assigned to this individual provider in the NPPES registry on February 24, 2006.

Where is Denise Rettenmaier located?

Denise Rettenmaier practices at 220 California Dr C/O Medical Staff Office, Yountville, CA 94599. The listed phone number is (707) 944-4716.

What is Denise Rettenmaier's specialty?

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

Is Denise Rettenmaier enrolled in Medicare?

Yes. Denise Rettenmaier is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Denise Rettenmaier was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 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.