William Lefkowitz, MD

Primary specialty

Neonatal-Perinatal Medicine PhysicianTaxonomy code 2080N0001X

License

M5325 Issued in TX

Practice address

4502 Medical Dr
San Antonio, TX 78229-4402

Phone

(210) 358-4000

Fax

(210) 358-4775

NPI assigned

Jan 5, 2006

Last updated

Aug 27, 2026By the provider in NPPES

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

Medicare fee-for-service enrollment

Enrolled in FL

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)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wlefkowitz71265@adventhealth.direct-ci.com
• Direct secure messaging: blefkowitz71662@epicdirect.hf.org

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.

• Florida Hospital Medical Group Inc

  dba AdventHealth Medical Group

  • Family Medicine Physician
  • Orlando, FL
  • NPI 1225034234
  Medicare reassignment NPD
• Florida Hospital Medical Group Inc

  dba Rothman Orthopaedics AdventHealth Medical Group at Minneola

  • Prosthetic/Orthotic Supplier
  • Minneola, FL
  • NPI 1285591545
  NPD

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

{
    "created_epoch": "1136419200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787788800000",
    "number": "1083692495",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000",
            "fax_number": "210-358-4775"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000",
            "fax_number": "210-358-4775"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEFKOWITZ",
        "first_name": "WILLIAM",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-05",
        "last_updated": "2026-08-27",
        "certification_date": "2026-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "TX",
            "license": "M5325",
            "primary": true
        },
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "FL",
            "license": "ME139143",
            "primary": false
        },
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "NM",
            "license": "MD2019-0016",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Leer's Quality Home Health Care Services Inc.
• Bridget Joy Leesang, O.D.
• Martha L Leesman, MS
• Gavin Lefever, DC
• Lisa Marie Leffler, MD
• Ashliee Kay Lefler-Jones, LCSW
• Lefleur Transportation of Texas
• Jeff Leftin
• Justine Marie Leftwich, OTR/L
• Legacy Dental Sa PC

• Neonatal-Perinatal Medicine Physician in San Antonio, TX
• Providers in San Antonio, TX by specialty
• Neonatal-Perinatal Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 27, 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.