Nathaniel Gregg Denicola, MD

Primary specialty

Gynecology PhysicianTaxonomy code 207VG0400X

License

C170127 Issued in CA

Practice address

101 The City Dr S
Orange, CA 92868-3201

Phone

(714) 456-8888

NPI assigned

May 14, 2008

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 DC, TX, CA3 enrollments

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 3

Specialty

Obstetrics/Gynecology

Education

University of California, Irvine, California College of Medicine, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the University of CaliforniaGroup PAC ID 0143128009, 51 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/10944/brand/3/csg/1/fhir/r4
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: ndenicola693546@direct.hopkinsmedicine.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 of the University of California

  dba OB-GYN University Associates

  • Obstetrics & Gynecology Physician
  • Orange, CA
  • NPI 1356304034
  Medicare reassignment Care Compare group NPD
• Caduceus Physicians Medical Group

  • Family Medicine Physician
  • Yorba Linda, CA
  • NPI 1497702724

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Hoag Clinic

  • Primary Care Clinic/Center
  • Newport Beach, CA
  • NPI 1942799523
  Medicare reassignment NPD
• Medical Faculty Associates, Inc

  • Anesthesiology Physician
  • Washington, DC
  • NPI 1417990581

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Pine Ridge Indian Health Service Hospital

  dba Pine Ridge IHS Hospital

  • General Acute Care Hospital
  • Pine Ridge, SD
  • NPI 1497786412

  TX

  Medicare reassignment NPD
• Pine Ridge Indian Health Service Hospital

  dba LaCreek District Clinic

  • Clinic/Center
  • Martin, SD
  • NPI 1003208257
  NPD
• Pine Ridge Indian Health Service Hospital

  dba Wanblee Health Center

  • Clinic/Center
  • Wanblee, SD
  • NPI 1962559518
  NPD
• Alfred W. Sloan, MD, Apc

  • Obstetrics & Gynecology Physician
  • Placentia, CA
  • NPI 1912180845
  NPD (past)
• Hoag Hospital

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1689864365
  NPD (past)

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

{
    "created_epoch": "1210723200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774310400000",
    "number": "1225205651",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-8888"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-8888"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "320 Superior Ave Ste 290",
            "address_purpose": "LOCATION",
            "city": "Newport Beach",
            "state": "CA",
            "postal_code": "926636140",
            "country_code": "US",
            "telephone_number": "949-375-8244",
            "fax_number": "949-398-9812",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DENICOLA",
        "first_name": "NATHANIEL",
        "middle_name": "GREGG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-05-14",
        "last_updated": "2026-03-24",
        "certification_date": "2026-03-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VG0400X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecology",
            "state": "CA",
            "license": "C170127",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Victoria K Dendinger, PHD
• Bela Stephen Denes Sr., M.D.
• Doris Z Deng
• Brooke S Denholm, CCC-SLP
• Mary Therese Denicola, NP
• Dennis R. Long, M.D. Inc.
• Alexander Dennis
• Meredith Leigh Dennis, PHD
• Reagan Caroline Denny
• Dental Spa of Orange

• Gynecology Physician in Orange, CA
• Providers in Orange, CA by specialty
• Gynecology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 24, 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.