Peter D Mazonson, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

G61502 Issued in CA

Practice address

500 Tully Rd
VHC Tully Primary Care Clinic
San Jose, CA 95111-1917

Phone

(408) 494-7400

NPI assigned

Apr 25, 2006

Sex

Male

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

Specialty

Internal Medicine

Education

Geisel School of Medicine at Dartmouth, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

County of Santa ClaraGroup PAC ID 1254244973, 1,000 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Santa Clara Valley Medical Center Hospital, San Jose, CA, CCN 050038

Merit-based Incentive Payment System (MIPS)

Final score

61 of 100Reported as group

Quality

59.41

Promoting interoperability

0

Improvement activities

40

Cost

71.45

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: pmazonson11095@santaclaravalley.direct-ci.net

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.

• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1629301346

  CA

  Medicare reassignment NPD
• County of Santa Clara

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079

  CA

  Medicare reassignment NPD
• County of Santa Clara

  • Anesthesiology Physician
  • San Jose, CA
  • NPI 1588721500

  CA

  Medicare reassignment
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • San Jose, CA
  • NPI 1043354020
  NPD
• County of Santa Clara

  • Federally Qualified Health Center (FQHC)
  • Sunnyvale, CA
  • NPI 1336326974
  NPD

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

• County of Santa Clara

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1063406551

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1145923200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1811953391",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1036 COLLEGE AVE",
            "city": "MENLO PARK",
            "state": "CA",
            "postal_code": "940255210",
            "telephone_number": "650-323-4511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 TULLY RD",
            "address_2": "VHC TULLY PRIMARY CARE CLINIC",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951111917",
            "telephone_number": "408-494-7400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAZONSON",
        "first_name": "PETER",
        "middle_name": "D",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-25",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G61502",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Darlena Renee Mays
• Maystar Natural Healthcare Center Inc.
• Katayoun Mazdeh, PHARM.D
• Anahita Mazdiyassni
• Monica Maze
• Asefeh Mazraeh
• Gregory Marc Mazzie, PHARMD
• Ronit Mazzoni, MS
• MB Laser Rehab Center
• Sharon Mbabazi

• All providers in San Jose, CA
• 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.