Christopher Allen May, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

MD474082 Issued in PA

Practice address

1861 Powder Mill Rd
York, PA 17402-4723

Phone

(717) 718-2000

Fax

(717) 718-3460

NPI assigned

Aug 4, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in DC, MD, PA3 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 3

Specialty

Anesthesiology

Education

Georgetown University School of Medicine, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Oss Orthopaedic Hospital LLCGroup PAC ID 8729110747, 125 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Oss Orthopaedic Hospital Hospital, York, PA, CCN 390325

Merit-based Incentive Payment System (MIPS)

Final score

95.65 of 100Reported as group

Quality

99.23

Promoting interoperability

100

Improvement activities

40

Cost

86.28

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cmay@osshealth.medentdirect.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.

• Oss Orthopaedic Hospital, LLC

  • General Acute Care Hospital
  • York, PA
  • NPI 1578881652

  PA

  Medicare reassignment Care Compare group NPD
• First Colonies Anesthesia Associates, LLC

  • Anesthesiology Physician
  • Columbia, MD
  • NPI 1740218767

  Anesthesiology, DC, MD

  Medicare reassignment NPD
• University of Maryland St. Joseph Medical Group, LLC

  • General Practice Physician
  • Towson, MD
  • NPI 1770836785

  MD

  Medicare reassignment NPD
• Oss Orthopaedic Hospital, LLC

  • Durable Medical Equipment & Medical Supplies
  • Enola, PA
  • NPI 1619433570
  NPD
• Oss Orthopaedic Hospital, LLC

  • General Acute Care Hospital
  • York, PA
  • NPI 1962758375

  Anesthesiology

  NPD
• Sda Consultants PLLC

  • Anesthesiology Physician
  • Elkhart, IN
  • NPI 1336605500

  Anesthesiology

  NPD
• University of Maryland St. Joseph Medical Group, LLC

  • Surgical Assistant
  • Towson, MD
  • NPI 1053816074
  NPD
• York Road Anesthesia

  • Anesthesiology Physician
  • Towson, MD
  • NPI 1225004138

  Anesthesiology

  NPD (past)

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

• Oss Orthopaedic Hospital, LLC

  • General Acute Care Hospital
  • York, PA
  • NPI 1578881652

  Hospital

  Care Compare affiliation
• Oss Orthopaedic Hospital, LLC

  • General Acute Care Hospital
  • York, PA
  • NPI 1962758375

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1123113600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759795200000",
    "number": "1477554004",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1861 POWDER MILL RD",
            "city": "YORK",
            "state": "PA",
            "postal_code": "174024723",
            "telephone_number": "717-718-2041",
            "fax_number": "717-747-2102"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1861 POWDER MILL RD",
            "city": "YORK",
            "state": "PA",
            "postal_code": "174024723",
            "telephone_number": "717-718-2000",
            "fax_number": "717-718-3460"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1855 Powder Mill Road",
            "address_2": "Suite 210",
            "address_purpose": "LOCATION",
            "city": "York",
            "state": "PA",
            "postal_code": "174024723",
            "country_code": "US",
            "telephone_number": "717-747-8306",
            "fax_number": "717-741-9458",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAY",
        "first_name": "CHRISTOPHER",
        "middle_name": "ALLEN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-04",
        "last_updated": "2025-10-07",
        "certification_date": "2025-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "PA",
            "license": "MD474082",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cmay@osshealth.medentdirect.com",
            "affiliation": "N",
            "address_1": "1861 Powder Mill Rd",
            "city": "York",
            "state": "PA",
            "country_code": "US",
            "postal_code": "174024723",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Maxim Healthcare Services, Inc.
• Emily Maxwell, M.D.
• Katherine Maxwell, PAC
• Anthony Crofton May, MD
• Brittanie Starr' May
• Jonathan Pierce May, PA-C
• Megan Mayfield
• Carissa Mays, LMT
• Nia Mays
• John Maysilles, RPH

• Anesthesiology Physician in York, PA
• Providers in York, PA by specialty
• Anesthesiology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 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.