San Diego OB GYN Hospitalists Inc

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

Legal business name

SAN DIEGO OB GYN HOSPITALISTS INC

Practice address

5555 Grossmont Center Dr
La Mesa, CA 91942-3019

Phone

(619) 740-6000

NPI assigned

Apr 3, 2026

Last updated

Jun 25, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Arthur Gruen, MD

Title

Ceo/Owner

Phone

(858) 759-4765

Specialties & licenses 1

Addresses

Locations

Practitioners 4

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Natalia Babkina, MD

  • Obstetrics & Gynecology Physician
  • Vista, CA
  • NPI 1396066635
  NPD
• Branislav Cizmar, MD

  • Obstetrics & Gynecology Physician
  • Escondido, CA
  • NPI 1679554372
  NPD
• Paul William Hinshaw, DO

  • Obstetrics & Gynecology Physician
  • Vista, CA
  • NPI 1215170717
  NPD
• Rahele Mazarei, D.O.

  • Obstetrics & Gynecology Physician
  • Vista, CA
  • NPI 1639170459
  NPD (past)

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

{
    "created_epoch": "1775174400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1782345600000",
    "number": "1598606477",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "440 STEVENS AVE STE 370",
            "city": "SOLANA BEACH",
            "state": "CA",
            "postal_code": "920752073",
            "telephone_number": "858-759-4765",
            "fax_number": "858-201-4987"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5555 GROSSMONT CENTER DR",
            "city": "LA MESA",
            "state": "CA",
            "postal_code": "919423019",
            "telephone_number": "619-740-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SAN DIEGO OB GYN HOSPITALISTS INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-04-03",
        "last_updated": "2026-06-25",
        "certification_date": "2026-06-25",
        "status": "A",
        "authorized_official_last_name": "GRUEN",
        "authorized_official_first_name": "ARTHUR",
        "authorized_official_title_or_position": "CEO/OWNER",
        "authorized_official_telephone_number": "858-759-4765",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• San Diego Dialysis Services, Inc. (Fresenius Medical Care La Mesa)
• San Diego Eye Professionals
• San Diego Hospitalist Network, a.P.C.
• San Diego Neurological Disorders (Tyrone L Hardy MD)
• San Diego Neurosurgery and Spine Institute
• San Diego Psychotherapy Group, Inc.
• San Diego Urological Medical Group
• San Diego Wellness and Recovery
• Kiley San Martin, CADC
• Julia Sanchez

• Obstetrics & Gynecology Physician in La Mesa, CA
• Providers in La Mesa, 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 Jun 25, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.