William Ma, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

01059342A Issued in IN

Practice address

Eskenazi Health Center W 38TH St
Indianapolis, IN 46254-2919

Phone

(317) 880-3838

Fax

(317) 880-0081

NPI assigned

Aug 30, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 3

Medicare fee-for-service enrollment

Enrolled in IN, ND2 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 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• The Health and Hospital Corporation of Marion County

  • Nurse Practitioner
  • Indianapolis, IN
  • NPI 1104027879
  Medicare reassignment NPD
• Sanford Medical Center Fargo

  • Family Medicine Physician
  • West Fargo, ND
  • NPI 1184917924

  Pediatrics

  Medicare reassignment NPD
• The Health and Hospital Corporation of Marion County

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Indianapolis, IN
  • NPI 1871311779
  NPD
• Sanford Medical Center Fargo

  • General Acute Care Hospital
  • Fargo, ND
  • NPI 1528009412
  NPD
• Open Door Health Services, Inc.

  • Federally Qualified Health Center (FQHC)
  • Hartford City, IN
  • NPI 1245094028
  NPD (past)

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

{
    "created_epoch": "1156896000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775433600000",
    "number": "1396854345",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 637764",
            "city": "CINCINNATI",
            "state": "OH",
            "postal_code": "452637764",
            "telephone_number": "317-274-1201",
            "fax_number": "317-278-9905"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "ESKENAZI HEALTH CENTER W 38TH ST",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462542919",
            "telephone_number": "317-880-3838",
            "fax_number": "317-880-0081"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MA",
        "first_name": "WILLIAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-30",
        "last_updated": "2026-04-06",
        "certification_date": "2026-04-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207LC0200X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Critical Care Medicine",
            "state": "IN",
            "license": "01059342",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IN",
            "license": "01059342A",
            "primary": true
        },
        {
            "code": "2080P0203X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Critical Care Medicine",
            "state": "IN",
            "license": "01059342",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200492900",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "300005499",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "207488305",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• M&M Caring Transportation Services
• M&M Communications, P.C.
• M&M Personal Care Service
• Ma Clinical Laboratory Services LLC
• Jiayi Ma, MD
• Garrett Maag
• Jennifer Maahs, NP
• William Matthew Maakestad, DPT
• Mohammed Maalem
• Daniel Maassel

• Pediatrics Physician in Indianapolis, IN
• Providers in Indianapolis, IN by specialty
• Pediatrics Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 6, 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.