NPIMap

Individual provider Active NPI

Patricia Roukee Sitnitsky, M.D.

  • Internal Medicine Physician
  • Los Altos, CA
National Provider Identifier
1790896231
Registry record updated May 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A88027 Issued in CA
Practice address
827 Altos Oaks Dr Ste 4
Los Altos, CA 94024-5490
Phone
(408) 495-5770
Fax
(650) 912-1129
NPI assigned
Aug 31, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 29, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Obesity Medicine (Internal Medicine) Physician 207RB0002X 89984281 CA
Internal Medicine Physician 207R00000X A88027 CA Primary

Addresses

Primary practice location

827 Altos Oaks Dr Ste 4
Los Altos, CA 94024-5490

Mailing address

827 Altos Oaks Dr Ste 4
Los Altos, CA 94024-5490
Phone (408) 495-5770

Other practice location 1

525 South Dr Ste 211
Mountain View, CA 94040-4211
Phone (408) 495-5770

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050613000617 CA Practitioner - Internal Medicine 3971547829 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Stanford University School of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Patricia Sitnitsky PCGroup PAC ID 0446619852, 11 clinicians

Practice addresses (Care Compare)

827 Altos Oaks Dr
Suite 4
Los Altos, CA 94024-5490
Phone (408) 495-5770

Hospital & facility affiliations

  • Truemed, Inc Home health agency, South San Francisco, CA, CCN 059349
  • South Bay Home Health Care, LLC Home health agency, San Jose, CA, CCN 053174
  • Sequoia Home Health Home health agency, Milpitas, CA, CCN 058496
  • El Camino Health Hospital, Mountain View, CA, CCN 050308
  • Stanford Health Care Hospital, Stanford, CA, CCN 050441
  • Peninsula Medical Center Hospital, Burlingame, CA, CCN 050007
  • Good Samaritan Hospital Hospital, San Jose, CA, CCN 050380

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10
Removal or shaving of skin growth1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A88027CAMDInternal Medicine Physician
89984281CAMDObesity Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Patricia Sitnitsky PC Internal Medicine CurrentSince May 12, 2023 Accepting new patients
El Camino Health Medical Group Past Accepting new patients
El Camino Hospital Past Accepting new patients
Carbon Health Primary Care of California PC Internal Medicine PastSince Jul 20, 2025 Accepting new patients

Locations

827 Altos Oaks Dr
Ste 4
Los Altos, CA 94024
Phone (408) 495-5770

15100 Los Gatos Blvd
Ste 4
Los Gatos, CA 95032
Phone (408) 358-6234

525 South Dr
Ste 211
Mountain View, CA 94040
Phone (408) 495-5770

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: patricia.sitnitsky@601886991843332.direct.elationemr.com

Organizations & group practices 4

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.

Hospital & facility affiliations 16

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748476800000",
    "number": "1790896231",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "827 ALTOS OAKS DR STE 4",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940245490",
            "telephone_number": "408-495-5770",
            "fax_number": "650-912-1129"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "827 ALTOS OAKS DR STE 4",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940245490",
            "telephone_number": "408-495-5770",
            "fax_number": "650-912-1129"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "525 South Dr Ste 211",
            "address_purpose": "LOCATION",
            "city": "Mountain View",
            "state": "CA",
            "postal_code": "940404211",
            "country_code": "US",
            "telephone_number": "408-495-5770",
            "fax_number": "650-912-1129",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SITNITSKY",
        "first_name": "PATRICIA",
        "middle_name": "ROUKEE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-31",
        "last_updated": "2025-05-29",
        "certification_date": "2025-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RB0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Obesity Medicine",
            "state": "CA",
            "license": "89984281",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A88027",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Altos, CA

Sources for this page

Verify at the official NPI Registry.