Prem Narayan Ramkumar, M.D., M.B.A.

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

A180372 Issued in CA

Practice address

5750 Downey Ave Ste 308
Downey, CA 90712-1482

Phone

(562) 633-3787

Fax

(562) 633-1977

NPI assigned

Mar 31, 2016

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

Specialty

Orthopedic Surgery

Education

Baylor College of Medicine, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Commons Clinic Medical Group, PCGroup PAC ID 6204221096, 21 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Grandcare Home Health Services Home health agency, Pasadena, CA, CCN 058277
• Memorialcare Long Beach Medical Center Hospital, Long Beach, CA, CCN 050485

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Business Administration, Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: khy9003@direct.nyp.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.

• Commons Clinic Medical Group, PC

  • Multi-Specialty Clinic/Center
  • Marina del Rey, CA
  • NPI 1831856640

  Orthopaedic Surgery

  Medicare reassignment Care Compare group NPD
• Long Beach - Lakewood Orthopedic Institute

  • Multi-Specialty Clinic/Center
  • Lakewood, CA
  • NPI 1710020755

  Orthopaedic Surgery

  Medicare reassignment NPD
• Long Beach - Lakewood Orthopedic Institute

  • Multi-Specialty Clinic/Center
  • Long Beach, CA
  • NPI 1629558713

  Orthopaedic Surgery

  NPD
• Commons Clinic Medical Network, PC

  • Multi-Specialty Clinic/Center
  • Marina del Rey, CA
  • NPI 1952068777
  NPD (past)
• Brigham and Womens Physicians Organization Inc

  • Diagnostic Radiology Physician
  • Jamaica Plain, MA
  • NPI 1578549507
  NPD (past)

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

• Long Beach Memorial Medical

  • General Acute Care Hospital
  • Long Beach, CA
  • NPI 1962442012
  Care Compare affiliation
• MSJ Healthcare LLC

  • Home Health Agency
  • Pasadena, CA
  • NPI 1326272766
  Care Compare affiliation

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

{
    "created_epoch": "1459382400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756339200000",
    "number": "1255794889",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 15848",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926595848",
            "telephone_number": "657-241-3600",
            "fax_number": "657-241-7708"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5750 DOWNEY AVE STE 308",
            "city": "DOWNEY",
            "state": "CA",
            "postal_code": "907121482",
            "telephone_number": "562-633-3787",
            "fax_number": "562-633-1977"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3828 Schaufele Ave Ste 320",
            "address_purpose": "LOCATION",
            "city": "Long Beach",
            "state": "CA",
            "postal_code": "908081793",
            "country_code": "US",
            "telephone_number": "562-348-4588",
            "fax_number": "562-420-2545",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RAMKUMAR",
        "first_name": "PREM",
        "middle_name": "NARAYAN",
        "name_prefix": "Dr.",
        "credential": "M.D., M.B.A.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-03-31",
        "last_updated": "2025-08-28",
        "certification_date": "2025-08-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CA",
            "license": "A180372",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mario Alberto Ramirez, RN
• Marvin George Ramirez
• Melissa Ramirez
• Saira J Ramirez
• Veronica Ramirez
• Claudia Marina Ramos
• Deneen Evona Ramos
• Janice Ramos, AOD
• Jessica Maria Ramos
• Justine Franchesca S. Ramos, OTD, OTR/L

• Orthopaedic Surgery Physician in Downey, CA
• Providers in Downey, CA by specialty
• Orthopaedic Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 28, 2025; 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.