Mark Dean Snyder, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

66415 Issued in CT

Practice address

6000 Hospital Dr
Hannibal, MO 63401-6887

Phone

(573) 248-5115

Fax

(573) 248-5196

NPI assigned

Aug 26, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Other identifiers 4

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in MO, WI, AK, CT4 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 4

Specialty

Anesthesiology

Education

University of Kansas School of Med (KC/Wich/Sal), 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Missouri HB Medical Services LLCGroup PAC ID 2668813197, 77 clinicians

North American Partners in Anesthesia Connecticut PCGroup PAC ID 6709877939, 14 clinicians

Hannibal Regional Healthcare System IncGroup PAC ID 1254236300, 256 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hannibal Regional Hospital Hospital, Hannibal, MO, CCN 260025
• Northeast Regional Medical Center Hospital, Kirksville, MO, CCN 260022
• Day Kimball Hospital Hospital, Putnam, CT, CCN 070003

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 and National Provider Directory roles.

• Missouri HB Medical Services, LLC

  • Emergency Medicine Physician
  • Poplar Bluff, MO
  • NPI 1922868462
  Medicare reassignment Care Compare group NPD
• North American Partners in Anesthesia Connecticut PC

  • Anesthesiology Physician
  • New Britain, CT
  • NPI 1316994775
  Medicare reassignment Care Compare group NPD
• Hannibal Regional Healthcare System Inc

  • Multi-Specialty Clinic/Center
  • Hannibal, MO
  • NPI 1003956095
  Medicare reassignment Care Compare group
• Guardian Anesthesia Specialists, LLC

  • Certified Registered Nurse Anesthetist
  • Kansas City, MO
  • NPI 1740611789

  Anesthesiology

  Medicare reassignment NPD
• Midwest Anesthesia Providers S.C

  • Anesthesiology Physician
  • Saint Louis, MO
  • NPI 1295189082
  Medicare reassignment NPD
• Baycare Clinic LLP

  • Emergency Medicine Physician
  • Green Bay, WI
  • NPI 1588609648

  Anesthesiology

  Medicare reassignment NPD
• Mercy Health System Corporation

  • Multi-Specialty Clinic/Center
  • Janesville, WI
  • NPI 1598718603
  Medicare reassignment NPD
• Peacehealth

  • Critical Access Hospital
  • Ketchikan, AK
  • NPI 1396705539
  Medicare reassignment NPD
• Baycare Clinic LLP

  • Durable Medical Equipment & Medical Supplies
  • Manitowoc, WI
  • NPI 1134490758
  NPD
• Mercy Health System Corporation

  • Critical Access Hospital
  • Lake Geneva, WI
  • NPI 1699728550
  NPD
• Ozarks Medical Center

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  NPD (past)
• Anesthesia Associates of Central Kansas, P.a.

  • Anesthesiology Physician
  • Salina, KS
  • NPI 1164494084
  NPD (past)

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

• Hannibal Regional Healthcare System, Inc

  • Rural Acute Care Hospital
  • Hannibal, MO
  • NPI 1922042704
  Care Compare affiliation
• Kirksville Missouri Hospital Company, LLC

  • General Acute Care Hospital
  • Kirksville, MO
  • NPI 1104899442
  Care Compare affiliation
• Day Kimball Healthcare, Inc.

  • General Acute Care Hospital
  • Putnam, CT
  • NPI 1205056371
  Care Compare affiliation
• Day Kimball Healthcare, Inc.

  • General Acute Care Hospital
  • Putnam, CT
  • NPI 1649243478
  Care Compare affiliation

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

{
    "created_epoch": "1125014400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782432000000",
    "number": "1790778587",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "120 TERRACE LN",
            "city": "HANNIBAL",
            "state": "MO",
            "postal_code": "634012768"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6000 HOSPITAL DR",
            "city": "HANNIBAL",
            "state": "MO",
            "postal_code": "634016887",
            "telephone_number": "573-248-5115",
            "fax_number": "573-248-5196"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "320 Pomfret St",
            "address_purpose": "LOCATION",
            "city": "Putnam",
            "state": "CT",
            "postal_code": "062601836",
            "country_code": "US",
            "telephone_number": "860-928-6541",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5325 Faraon St",
            "address_purpose": "LOCATION",
            "city": "Saint Joseph",
            "state": "MO",
            "postal_code": "645063488",
            "country_code": "US",
            "telephone_number": "816-271-6350",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SNYDER",
        "first_name": "MARK",
        "middle_name": "DEAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-26",
        "last_updated": "2026-06-26",
        "certification_date": "2026-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "KS",
            "license": "04-22743",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MO",
            "license": "2006001821",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "51782",
            "primary": false
        },
        {
            "code": "207LP2900X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pain Medicine",
            "state": "MO",
            "license": "2006001821",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CT",
            "license": "66415",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "35345000",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "208986505",
            "state": "MO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "008097491",
            "state": "CT"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100122940B",
            "state": "KS"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "msnyder5955@direct.monroeclinic.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "msnyder5955@direct.monroeclinic.org",
            "address_1": "515 22nd Ave",
            "city": "Monroe",
            "state": "WI",
            "country_code": "US",
            "postal_code": "535661569",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://webproxyprd.monroeclinic.org/FHIR-PRD/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "515 22nd Ave",
            "city": "Monroe",
            "state": "WI",
            "country_code": "US",
            "postal_code": "535661569",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Anesthesiology Physician in Hannibal, MO
• Providers in Hannibal, MO by specialty
• Anesthesiology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 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.