Mary Chien Rozelle, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA16380 Issued in CA

Practice address

2490 Hospital Dr
Suite 201
Mountain View, CA 94040-4122

Phone

(650) 962-4609

NPI assigned

Jun 2, 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

Other identifiers 1

Other names 1

• Mary Katherine Chien Former name

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: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Berman Skin Institute Medical Group Inc

  • Dermatology Physician
  • Los Altos, CA
  • NPI 1528175528
  Medicare reassignment
• Planned Parenthood Mar Monte, Inc.

  • Community Health Clinic/Center
  • San Jose, CA
  • NPI 1598536971
  NPD (past)
• Medical Clinic of North Texas PLLC

  • Radiation Oncology Clinic/Center
  • Arlington, TX
  • NPI 1184131625
  NPD (past)

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

{
    "created_epoch": "1149206400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779148800000",
    "number": "1962449249",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2490 HOSPITAL DR STE 201",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940404124",
            "telephone_number": "650-962-4609"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2490 HOSPITAL DR",
            "address_2": "SUITE 201",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940404122",
            "telephone_number": "650-962-4609"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1792 Tribute Rd Ste 200",
            "address_purpose": "LOCATION",
            "city": "Sacramento",
            "state": "CA",
            "postal_code": "958154320",
            "country_code": "US",
            "telephone_number": "916-678-7270",
            "fax_number": "916-514-1799",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ROZELLE",
        "first_name": "MARY",
        "middle_name": "CHIEN",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-02",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA16380",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "PA03108",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARY",
            "last_name": "CHIEN",
            "middle_name": "KATHERINE",
            "credential": "PA-C",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Siegfried Rotmensch, M.D.
• Patricia A Rouzer, D.C.
• Arphy T Roy, PA
• Samuel Royal
• Jennifer Langsdorf Royer, LMFT
• Santiago Rozo
• Steven Rubinstein, M.D.
• Sooji Lee Rugh, M.D.
• Clarissa Ruiz
• Pamela Elizabeth Ruiz, PA-C

• Physician Assistant in Mountain View, CA
• Providers in Mountain View, CA by specialty
• Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 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.