William J Greer, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

0101254638 Issued in VA

Practice address

101 Elm Ave SE
Roanoke, VA 24013-2222

Phone

(540) 985-4099

Fax

(540) 985-4069

NPI assigned

May 18, 2007

Last updated

Apr 23, 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

Other identifiers 12

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in VA

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

Obstetrics/Gynecology

Education

University of Alabama School of Medicine, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Carilion Medical CenterGroup PAC ID 9830096585, 956 clinicians

Carilion Healthcare CorporationGroup PAC ID 5890607253, 540 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Carilion Medical Center Hospital, Roanoke, VA, CCN 490024
• Carilion New River Valley Medical Center Hospital, Christiansburg, VA, CCN 490042
• Carilion Franklin Memorial Hospital Hospital, Rocky Mount, VA, CCN 490089

Procedures performed for Medicare patients

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

Locations

Interoperability endpoints

• Direct secure messaging: wgreer54798@direct.carilionclinic.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.

• Carilion Healthcare Corporation

  dba Bridgewater College Student Health Center

  • Multi-Specialty Clinic/Center
  • Roanoke, VA
  • NPI 1447206370
  Medicare reassignment Care Compare group NPD
• Carilion Medical Center

  • Multi-Specialty Clinic/Center
  • Roanoke, VA
  • NPI 1730123472
  Medicare reassignment Care Compare group NPD
• Carilion Healthcare Corporation

  • Durable Medical Equipment & Medical Supplies
  • Blacksburg, VA
  • NPI 1407667256
  NPD
• Carilion Medical Center

  dba Carilion Clinic - DME - Westlake

  • Durable Medical Equipment & Medical Supplies
  • Hardy, VA
  • NPI 1073324810
  NPD
• Carilion Medical Center

  dba Carilion Roanoke Memorial Hospital

  • General Acute Care Hospital
  • Roanoke, VA
  • NPI 1033102942
  NPD (past)

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

• Carilion Franklin Memorial Hospital

  • General Acute Care Hospital
  • Rocky Mount, VA
  • NPI 1710970918
  Care Compare affiliation
• Carilion Medical Center

  dba Carilion Roanoke Memorial Hospital

  • General Acute Care Hospital
  • Roanoke, VA
  • NPI 1033102942
  Care Compare affiliation
• Carilion New River Valley Medical Center

  • General Acute Care Hospital
  • Christiansburg, VA
  • NPI 1376536573
  Care Compare affiliation

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

{
    "created_epoch": "1179446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776902400000",
    "number": "1760690440",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "213 S JEFFERSON ST STE 1006",
            "city": "ROANOKE",
            "state": "VA",
            "postal_code": "240111713",
            "telephone_number": "540-224-5516"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 ELM AVE SE",
            "city": "ROANOKE",
            "state": "VA",
            "postal_code": "240132222",
            "telephone_number": "540-985-4099",
            "fax_number": "540-985-4069"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREER",
        "first_name": "WILLIAM",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-18",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VF0040X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Urogynecology and Reconstructive Pelvic Surgery",
            "state": "VA",
            "license": "0101254638",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "VA",
            "license": "0101254638",
            "primary": true
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "AL",
            "license": "26477",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009910552",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009910556",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "051542185",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "051542188",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "051542189",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009910554",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009910630",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "051542190",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009910553",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "051542186",
            "state": "AL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "009910557",
            "state": "AL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "051542187",
            "state": "AL"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wgreer54798@direct.carilionclinic.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "wgreer54798@direct.carilionclinic.org",
            "address_1": "101 Elm Ave SE",
            "city": "Roanoke",
            "state": "VA",
            "country_code": "US",
            "postal_code": "240132222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Elizabeth Greenebaum
• Victoria Lauren Greenwell, ED.S., NCSP
• Jennifer Elaine Greer, CRNA
• Jereme Greer
• Susan W Greer, MS//PT
• Tennille Morales Grega, ATC
• Gregory S Hughes, D.M.D.,PC
• Ardis Gregory, LPC
• Braden Asher Gregory, D.O.
• David S. Gregory, M.D.

• Obstetrics & Gynecology Physician in Roanoke, VA
• Providers in Roanoke, VA by specialty
• Obstetrics & Gynecology Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 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.
• 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.