Allister R. Williams, M.D.

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

MD433510 Issued in PA

Practice address

600 Plaza CT Ste C
East Stroudsburg, PA 18301-8263

Phone

(570) 421-7020

Fax

(570) 421-7091

NPI assigned

Nov 3, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in PA, NY2 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

Specialty

Orthopedic Surgery

Education

College of Medicine and Surgery, 2002

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mountain Valley Orthopedics PCGroup PAC ID 6901899111, 20 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Traditional Home Health Care Home health agency, Dunmore, PA, CCN 397774
• Lehigh Valley Hospital - Pocono Hospital, East Stroudsburg, PA, CCN 390201
• St Luke'S Hospital - Monroe Campus Hospital, Stroudsburg, PA, CCN 390330
• Lehigh Valley Hospital Hospital, Allentown, PA, CCN 390133
• St Luke'S Miners Memorial Hospital Hospital, Coaldale, PA, CCN 390183
• Wayne Memorial Hospital Hospital, Honesdale, PA, CCN 390125

Merit-based Incentive Payment System (MIPS)

Final score

85.29 of 100Reported as individual

Quality

70.53

Promoting interoperability

100

Improvement activities

40

Cost

80.43

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/9299/brand/1/csg/1/fhir/r4
• Direct secure messaging: allister.williams.1@9299.direct.athenahealth.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.

• Mountain Valley Orthopedics, P.C.

  • Orthopaedic Surgery Physician
  • East Stroudsburg, PA
  • NPI 1538226519

  NY

  Medicare reassignment Care Compare group NPD Authorized official
• Mountain Valley Orthopedics PC

  • Pharmacy
  • Tobyhanna, PA
  • NPI 1376959569
  NPD

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

• Lehigh Valley Hospital

  • General Acute Care Hospital
  • Allentown, PA
  • NPI 1164400131
  Care Compare affiliation
• Lehigh Valley Hospital

  • Clinic/Center
  • Allentown, PA
  • NPI 1194673467

  Hospital

  Care Compare affiliation
• Lehigh Valley Hospital

  • Clinic/Center
  • Allentown, PA
  • NPI 1528627155

  Hospital

  Care Compare affiliation
• Lehigh Valley Hospital

  • Psychiatric Hospital Unit
  • Bethlehem, PA
  • NPI 1609834001
  Care Compare affiliation
• Lehigh Valley Hospital

  • Children's Hospital
  • Allentown, PA
  • NPI 1952954307
  Care Compare affiliation
• Lehigh Valley Hospital Pocono

  • General Acute Care Hospital
  • East Stroudsburg, PA
  • NPI 1568459436
  Care Compare affiliation
• St. Luke'S Hospital Monroe Campus

  • General Acute Care Hospital
  • Stroudsburg, PA
  • NPI 1396194197
  Care Compare affiliation
• The Carbon-Schuylkill Community Hospital, Inc.

  • General Acute Care Hospital
  • Coaldale, PA
  • NPI 1437182847
  Care Compare affiliation
• Traditional Home Health and Hospice LLC

  • Home Health Agency
  • Dunmore, PA
  • NPI 1023010329
  Care Compare affiliation
• Wayne Memorial Hospital

  • General Acute Care Hospital
  • Honesdale, PA
  • NPI 1124026182
  Care Compare affiliation

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

{
    "created_epoch": "1162512000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760400000000",
    "number": "1639258205",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "600 PLAZA CT STE C",
            "city": "EAST STROUDSBURG",
            "state": "PA",
            "postal_code": "183018263",
            "telephone_number": "570-421-7020",
            "fax_number": "570-421-7091"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 PLAZA CT STE C",
            "city": "EAST STROUDSBURG",
            "state": "PA",
            "postal_code": "183018263",
            "telephone_number": "570-421-7020",
            "fax_number": "570-421-7091"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Wheatfield Dr Ste 2",
            "address_purpose": "LOCATION",
            "city": "Milford",
            "state": "PA",
            "postal_code": "183377699",
            "country_code": "US",
            "telephone_number": "570-421-7020",
            "fax_number": "570-421-7091",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "120 Burrus Blvd Ste 120",
            "address_purpose": "LOCATION",
            "city": "Brodheadsville",
            "state": "PA",
            "postal_code": "183227812",
            "country_code": "US",
            "telephone_number": "570-421-7020",
            "fax_number": "570-421-7091",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "100 Community Dr Ste 210",
            "address_purpose": "LOCATION",
            "city": "Tobyhanna",
            "state": "PA",
            "postal_code": "184668987",
            "country_code": "US",
            "telephone_number": "570-421-7020",
            "fax_number": "570-421-7091",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "ALLISTER",
        "middle_name": "R.",
        "name_prefix": "Mr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-03",
        "last_updated": "2025-10-14",
        "certification_date": "2025-10-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "PA",
            "license": "MD433510",
            "primary": true
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "SC",
            "license": "LL24193",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marshall Evans Whittington, CRNA
• Jordyn Wigglesworth
• William P Jordan MD Facs
• Alison Williams-Blount, CRNP
• Alexanne Autumn Williams
• Christiana E Williams, MS, RD
• Harriet Jean Williams, MD SPEAICAL ED
• Kerry Williams, CRNP
• Lauren Rebecca Willie, PA-C
• Garth J. Willis, M.D.

• Orthopaedic Surgery Physician in East Stroudsburg, PA
• Providers in East Stroudsburg, PA by specialty
• Orthopaedic Surgery Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 14, 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.