Jeffrey Robert Unger, M.D.

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

G45569 Issued in CA

Practice address

9220 Haven Ave Ste 230
Rancho Cucamonga, CA 91730-8565

Phone

(909) 590-8409

Fax

(909) 590-8695

NPI assigned

Jun 7, 2006

Last updated

May 18, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

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 MedicineAlso: Family Practice

Education

Northwestern University Feinberg Medical School, 1980

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• A and E Home Health Services, Inc Home health agency, Upland, CA, CCN 058469
• Achieva Hospice, Inc Hospice, Upland, CA, CCN A01502
• Mission Hospice Hospice, Pasadena, CA, CCN 051687

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

• Achieva Hospice Inc

  dba Mission Hospice of the Inland Empire

  • Community Based Hospice Care Agency
  • Upland, CA
  • NPI 1700280328

  Contracted Managing Employee

  CMS ownership

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Jeffrey R Unger, M.D. Inc

  • Endocrinology, Diabetes & Metabolism Physician
  • Chino, CA
  • NPI 1750556346
  Medicare reassignment Authorized official
• Prime Healthcare Services - Montclair, LLC

  dba Montclair Hopsital Medical Center

  • General Acute Care Hospital
  • Montclair, CA
  • NPI 1992721161
  NPD (past)
• Tele-Medicine Services Ny, PLLC

  • Internal Medicine Physician
  • Roseville, CA
  • NPI 1609663780
  NPD (past)

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

• A and E Home Health Services, Inc.

  • Home Health Agency
  • Upland, CA
  • NPI 1699809020
  Care Compare affiliation
• Achieva Hospice Inc

  dba Mission Hospice of the Inland Empire

  • Community Based Hospice Care Agency
  • Upland, CA
  • NPI 1700280328
  Care Compare affiliation
• Hospice Cheer

  dba Mission Hospice

  • Community Based Hospice Care Agency
  • Pasadena, CA
  • NPI 1982635140
  Care Compare affiliation

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

{
    "created_epoch": "1149638400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1003856188",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9220 HAVEN AVE STE 230",
            "city": "RANCHO CUCAMONGA",
            "state": "CA",
            "postal_code": "917308565",
            "telephone_number": "909-484-2105",
            "fax_number": "909-590-8695"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9220 HAVEN AVE STE 230",
            "city": "RANCHO CUCAMONGA",
            "state": "CA",
            "postal_code": "917308565",
            "telephone_number": "909-590-8409",
            "fax_number": "909-590-8695"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "UNGER",
        "first_name": "JEFFREY",
        "middle_name": "ROBERT",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-06-07",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "G45569",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": "G45569",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Paul M Umof, M.D.
• Oghenesume David Umugbe, M.D.,
• Alvin Undan
• Lisa Lynn Underhill
• Lauren McKenna Underwood, PT, DPT
• Unique Differences in Development Udid
• United Actions Inc. (Beryl House)
• United Hospitalist Inc.
• United RX Inc
• United Therapy Network (rancho specialty hospital)

• Endocrinology, Diabetes & Metabolism Physician in Rancho Cucamonga, CA
• Providers in Rancho Cucamonga, CA by specialty
• Endocrinology, Diabetes & Metabolism Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; 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.