Tamar Segev, D.O.

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

20A14091 Issued in CA

Practice address

335 S McDowell Blvd
Petaluma, CA 94954-3507

Phone

(415) 461-7800

Fax

(415) 461-8619

NPI assigned

Aug 15, 2014

Sex

Female

Sole proprietor

Yes

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

Obstetrics/Gynecology

Education

Other, 2013

Medicare assignment

May accept Medicare assignment

Telehealth

Offers telehealth services

Group practices

Regents Univ of California UCSFGroup PAC ID 6305160300, 276 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Marinhealth Medical Center Hospital, Greenbrae, CA, CCN 050360
• Novato Community Hospital Hospital, Novato, CA, CCN 050131

Merit-based Incentive Payment System (MIPS)

Final score

81.03 of 100Reported as subgroup

Quality

80.86

Promoting interoperability

76

Improvement activities

40

Cost

75.91

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tsegev125418@direct-ucsfmedicalcenter.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 Univ of California UCSF

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1124439807
  Medicare reassignment Care Compare group NPD
• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Santa Clara, CA
  • NPI 1073606299

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Permanente Medical Group Inc

  • Internal Medicine Physician
  • Redwood City, CA
  • NPI 1639252604

  Obstetrics & Gynecology

  NPD
• Permanente Medical Group, Inc

  • Clinical Medical Laboratory
  • San Jose, CA
  • NPI 1497971584
  NPD
• Marin General Hospital

  • General Acute Care Hospital
  • Greenbrae, CA
  • NPI 1396725677
  NPD (past)
• Providence Health System - Southern California

  • General Acute Care Hospital
  • Burbank, CA
  • NPI 1336173269
  NPD (past)
• University of California San Francisco

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • San Francisco, CA
  • NPI 1992818256
  NPD (past)

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

• Marin General Hospital

  • General Acute Care Hospital
  • Greenbrae, CA
  • NPI 1396725677
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Novato, CA
  • NPI 1104059153
  Care Compare affiliation

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

{
    "created_epoch": "1408060800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776297600000",
    "number": "1972902971",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100A DRAKES LANDING RD STE 225",
            "city": "GREENBRAE",
            "state": "CA",
            "postal_code": "949043119",
            "telephone_number": "415-461-7800",
            "fax_number": "415-461-8619"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "335 S MCDOWELL BLVD",
            "city": "PETALUMA",
            "state": "CA",
            "postal_code": "949543507",
            "telephone_number": "415-461-7800",
            "fax_number": "415-461-8619"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100A Drakes Landing Rd Ste 225",
            "address_purpose": "LOCATION",
            "city": "Greenbrae",
            "state": "CA",
            "postal_code": "949043119",
            "country_code": "US",
            "telephone_number": "415-461-7800",
            "fax_number": "415-461-8619",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "250 Bon Air Rd",
            "address_purpose": "LOCATION",
            "city": "Greenbrae",
            "state": "CA",
            "postal_code": "949041702",
            "country_code": "US",
            "telephone_number": "415-925-7591",
            "fax_number": "415-925-7604",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SEGEV",
        "first_name": "TAMAR",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-08-15",
        "last_updated": "2026-04-16",
        "certification_date": "2026-04-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "20A14091",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• John Scruggs
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• Anne Nelson Sebastian, NP
• Ray Seet, MD
• Denise Segerman Safont, MFT
• Roxana Segura, EMT
• Benjamin Seiker
• Josh Seitchik
• Acacia Sellars
• Shohreh Semati, NP

• Obstetrics & Gynecology Physician in Petaluma, CA
• Providers in Petaluma, CA by specialty
• Obstetrics & Gynecology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 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.