Martin Ruzek, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

14359 Issued in NH

Practice address

5 Alumni Dr FL 2
Exeter, NH 03833-2128

Phone

(603) 580-7525

Fax

(603) 580-7542

NPI assigned

Jan 10, 2006

Last updated

Oct 16, 2025By 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 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MA, NH, ME3 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

Hospitalist

Education

Other, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

York HospitalGroup PAC ID 6406766781, 202 clinicians

Core Physicians LLCGroup PAC ID 2769563253, 290 clinicians

Nantucket Cottage HospitalGroup PAC ID 1759357601, 91 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Nantucket Cottage Hospital Hospital, Nantucket, MA, CCN 220177
• Exeter Hospital Inc Hospital, Exeter, NH, CCN 300023
• Brigham and Women's Hospital Hospital, Boston, MA, CCN 220110
• Nantucket Cottage Hospital Nursing home, CCN 22U177

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ruzek.martin.mvh@direct.partners.masshiway.net
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: ruzek.martin.epa@direct.partners.masshiway.net
• Direct secure messaging: mruzek26125@direct.bilh.masshiway.net

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.

• Core Physicians, LLC

  • Family Medicine Physician
  • Exeter, NH
  • NPI 1336330588

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Nantucket Cottage Hospital

  • Rural Acute Care Hospital
  • Nantucket, MA
  • NPI 1447214622
  Medicare reassignment Care Compare group NPD
• York Hospital

  • General Acute Care Hospital
  • York, ME
  • NPI 1376528398
  Medicare reassignment Care Compare group NPD
• Athol Memorial Hospital Incorporated

  • Critical Access Hospital
  • Athol, MA
  • NPI 1336120047
  Medicare reassignment NPD
• Henry Heywood Memorial Hospital

  dba Heywood Hospital

  • General Acute Care Hospital
  • Gardner, MA
  • NPI 1205823879
  Medicare reassignment NPD
• Mercy Hospital

  • General Acute Care Hospital
  • Portland, ME
  • NPI 1629078712
  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Watertown, MA
  • NPI 1629398219
  Medicare reassignment NPD
• Lahey Clinic, Inc.

  dba Lahey Clinic

  • Internal Medicine Physician
  • Burlington, MA
  • NPI 1538194980
  Medicare reassignment
• Core Physicians LLC

  dba Core Podiatry

  • Durable Medical Equipment & Medical Supplies
  • Raymond, NH
  • NPI 1083085724
  NPD
• Seacoast Pathology Inc

  • Clinical Medical Laboratory
  • Exeter, NH
  • NPI 1154651230
  NPD
• Emerson Practice Associates, Inc.

  • Internal Medicine Physician
  • Concord, MA
  • NPI 1508020199
  NPD
• Henry Heywood Memorial Hospital

  dba Heywood Hospital

  • Psychiatric Hospital Unit
  • Gardner, MA
  • NPI 1457685299
  NPD

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

• Exeter Hospital Inc

  • General Acute Care Hospital
  • Exeter, NH
  • NPI 1437158433
  Care Compare affiliation
• Brigham & Womens Hospital, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1790717650
  Care Compare affiliation
• Nantucket Cottage Hospital

  • Rural Acute Care Hospital
  • Nantucket, MA
  • NPI 1447214622
  Care Compare affiliation
• Nantucket Cottage Hospital

  • Medicare Defined Swing Bed Hospital Unit
  • Nantucket, MA
  • NPI 1750448767

  Nursing home

  Care Compare affiliation

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

{
    "created_epoch": "1136851200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760572800000",
    "number": "1265411268",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4 ALUMNI DR",
            "city": "EXETER",
            "state": "NH",
            "postal_code": "038332118",
            "telephone_number": "603-580-7525",
            "fax_number": "603-580-7542"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 ALUMNI DR FL 2",
            "city": "EXETER",
            "state": "NH",
            "postal_code": "038332128",
            "telephone_number": "603-580-7525",
            "fax_number": "603-580-7542"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RUZEK",
        "first_name": "MARTIN",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-10",
        "last_updated": "2025-10-16",
        "certification_date": "2025-10-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NH",
            "license": "14359",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NH",
            "license": "14359",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3076070",
            "state": "NH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Emma J Rounds, LMFT
• Shawn A Roussin, PAC
• Judith Bowie Rowan, PHD
• Loni Rowe, MSW
• Anne Jamison Ruffus, PT
• Minerva Sabin, APRN
• Benjamin Ryan Saks
• Ian M Samuelson, FNP-C
• Betsy B. Sandberg, M.D.
• Stephanie Santora, LICSW

• Hospitalist Physician in Exeter, NH
• Providers in Exeter, NH by specialty
• Hospitalist Physician in New Hampshire

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 16, 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.