Denise A. Rettenmaier, D.O.

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

20A6474 Issued in CA

Practice address

220 California Dr
C/O Medical Staff Office
Yountville, CA 94599-1412

Phone

(707) 944-4716

Fax

(707) 944-5052

NPI assigned

Feb 24, 2006

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: drettenmaier347844@direct.ochin.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Regents of the Univ of Ca

  • Maternal & Fetal Medicine Physician
  • Sacramento, CA
  • NPI 1013906973
  Medicare reassignment NPD
• Regents of the University of California

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1952998973
  Medicare reassignment NPD
• Regents of the Univ of Ca

  • Diagnostic Radiology Physician
  • Sacramento, CA
  • NPI 1477546406
  NPD
• Regents of the University of Ca

  • Internal Medicine Physician
  • Sacramento, CA
  • NPI 1972596989
  NPD
• Regents of the University of Ca

  • Family Medicine Physician
  • Sacramento, CA
  • NPI 1992930986
  NPD
• Regents of the Univ of Ca

  • Surgery Physician
  • Sacramento, CA
  • NPI 1427041698
  NPD (past)
• Veterans Home of California Barstow

  • Skilled Nursing Facility
  • Barstow, CA
  • NPI 1205821758
  NPD (past)
• Essent PRMC LP

  • Certified Registered Nurse Anesthetist
  • Paris, TX
  • NPI 1376541839
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1140739200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1861468373",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 942895",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "942950001",
            "telephone_number": "916-653-0080",
            "fax_number": "916-653-1795"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "220 CALIFORNIA DR",
            "address_2": "C/O MEDICAL STAFF OFFICE",
            "city": "YOUNTVILLE",
            "state": "CA",
            "postal_code": "945991412",
            "telephone_number": "707-944-4716",
            "fax_number": "707-944-5052"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RETTENMAIER",
        "first_name": "DENISE",
        "middle_name": "A.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-24",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "CA",
            "license": "20A6474",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sharon A. Parda, R.D.
• Mark A Perkins, LCSW
• Courtney P. Persinger, PSY.D.
• Kevin Pitt, MS, RD
• Barbara G. Reisman, M.D.
• Marbella L Rodriguez, R.D.
• Shannon Rosano, ACSW
• Joanne Scorza, R.D.
• Douglas Seangmany, DNP, APRN, FNP-C
• Joy Sedlock, L.C.S.W.

• Geriatric Medicine (Internal Medicine) Physician in Yountville, CA
• Providers in Yountville, CA by specialty
• Geriatric Medicine (Internal Medicine) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.