Kwabena G Osei, MD,MPH

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

C152209 Issued in CA

Practice address

15290 Summit Ave Ste B
Fontana, CA 92336-0240

Phone

(909) 225-1900

Fax

(909) 663-9072

NPI assigned

Jul 17, 2007

Sex

Male

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

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. 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

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: kwabena.osei.1@31502.direct.athenahealth.com
• FHIR API: https://fhir4.healow.com/fhir/r4/GJAADA
• Direct secure messaging: kwabena.gyeduosei.p1@direct.metro.nextgenshare.com

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.

• Caremore Pediatric Hospitalist Medical Group, Inc.

  • Hospitalist Physician
  • Los Angeles, CA
  • NPI 1134743347

  Pediatrics

  Medicare reassignment NPD
• San Marcos Medical Group Inc

  • Obstetrics & Gynecology Physician
  • Fontana, CA
  • NPI 1447446448
  Medicare reassignment NPD
• Valley Children'S Medical Group

  • Pediatrics Physician
  • Modesto, CA
  • NPI 1437555265
  Medicare reassignment NPD
• Kwabena Osei, MD. Inc

  • Pediatrics Physician
  • Fontana, CA
  • NPI 1467317594
  NPD Authorized official
• First Choice Physician Partners

  • Neurological Surgery Physician
  • Modesto, CA
  • NPI 1104183052
  NPD
• First Choice Physician Partners

  • Family Medicine Physician
  • Palm Springs, CA
  • NPI 1558797118

  Pediatrics

  NPD
• First Choice Physician Partners

  • Ophthalmology Physician
  • El Monte, CA
  • NPI 1912732892
  NPD
• Inland Behavioral and Health Services, Inc.

  • Federally Qualified Health Center (FQHC)
  • San Bernardino, CA
  • NPI 1275562969
  NPD (past)
• San Marcos Medical Group Inc.

  • Family Medicine Physician
  • San Bernardino, CA
  • NPI 1548210297
  NPD (past)
• San Marcos Medical Group Inc.

  • Family Medicine Physician
  • Fontana, CA
  • NPI 1639129372
  NPD (past)
• San Marcos Medical Group Inc.

  • Family Medicine Physician
  • Riverside, CA
  • NPI 1952351686
  NPD (past)

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

{
    "created_epoch": "1184630400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778112000000",
    "number": "1275732372",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15290 SUMMIT AVE STE B",
            "city": "FONTANA",
            "state": "CA",
            "postal_code": "923360240",
            "telephone_number": "909-225-1900",
            "fax_number": "909-663-9072"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15290 SUMMIT AVE STE B",
            "city": "FONTANA",
            "state": "CA",
            "postal_code": "923360240",
            "telephone_number": "909-225-1900",
            "fax_number": "909-663-9072"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OSEI",
        "first_name": "KWABENA",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "MD,MPH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-07-17",
        "last_updated": "2026-05-07",
        "certification_date": "2026-05-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "C152209",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Olivia Jacqueline Ortega, N.P.
• Pauline Ortega
• Xatziry Ortiz Lopez
• Demetrio Ortiz
• Orlando Jesus Ortiz, PA-C
• Karen N. Oshiro, MD
• Ana Maria Osorio, MD
• Chukwujindu Eziafakaego Otakpor
• John T. Otsuki, MD
• Our Loving Legacy

• Pediatrics Physician in Fontana, CA
• Providers in Fontana, CA by specialty
• Pediatrics Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 7, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.