Lawrence William O Holleran, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

6423A Issued in WY

Practice address

614 W Dale Blvd
Cheyenne, WY 82009-5927

Phone

(307) 286-6840

NPI assigned

Feb 28, 2006

Last updated

May 18, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WY

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

General Surgery

Education

University of Nebraska College of Medicine, 1979

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Memorial Hospital of Laramie CountyGroup PAC ID 1557357555, 49 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cheyenne Regional Medical Center Hospital, Cheyenne, WY, CCN 530014

Merit-based Incentive Payment System (MIPS)

Final score

93.78 of 100Reported as apm

Quality

80.38

Promoting interoperability

100

Improvement activities

40

Procedures performed for Medicare patients

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Memorial Hospital of Laramie County

  dba Cheyenne Regional Medical Center

  • General Acute Care Hospital
  • Cheyenne, WY
  • NPI 1285621839
  Medicare reassignment Care Compare group NPD
• Lawrence W Oholleran PC

  • Surgery Physician
  • Cheyenne, WY
  • NPI 1649239138
  Medicare reassignment Authorized official
• Vein Treatment Center of Cheyenne

  • Vascular Surgery Physician
  • Cheyenne, WY
  • NPI 1295796050
  Medicare reassignment NPD
• Medical Associates

  • Family Medicine Physician
  • Cheyenne, WY
  • NPI 1831670744
  NPD (past)

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

• Memorial Hospital of Laramie County

  dba Cheyenne Regional Medical Center

  • General Acute Care Hospital
  • Cheyenne, WY
  • NPI 1285621839
  Care Compare affiliation

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

{
    "created_epoch": "1141084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1225004187",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "614 W DALE BLVD",
            "city": "CHEYENNE",
            "state": "WY",
            "postal_code": "820095927",
            "telephone_number": "307-286-6840"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "614 W DALE BLVD",
            "city": "CHEYENNE",
            "state": "WY",
            "postal_code": "820095927",
            "telephone_number": "307-286-6840"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O HOLLERAN",
        "first_name": "LAWRENCE",
        "middle_name": "WILLIAM",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-02-28",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "WY",
            "license": "6423A",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CO",
            "license": "26688",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NE",
            "license": "16963",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "115489300",
            "state": "WY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Novo Medbill LLC
• Ashley Nowlin
• Trevor Nowotny, RBT
• Leslie Joan Nutting, APRN, BC
• Elizabeth Sarah Nyce, RD
• Kenneth Wayne O'Donnell, PT
• Theresa M. O'Donnell, MD
• Karen O'Hara
• George O'Hare, RN
• David Franklin Oakes, MD

• Surgery Physician in Cheyenne, WY
• Providers in Cheyenne, WY by specialty
• Surgery Physician in Wyoming

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 18, 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.