Elizabeth K. B. Buck, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

199807 Issued in NY

Practice address

2249 State Route 86 Ste 3
Saranac Lake, NY 12983-5646

Phone

(518) 891-3845

Fax

(518) 891-1236

NPI assigned

Feb 14, 2006

Sex

Female

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

Other names 1

• Elizabeth K Beiser Former name

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in NY

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

Internal MedicineAlso: Pediatric Medicine

Education

Indiana University School of Medicine, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Hudson Headwaters Health NetworkGroup PAC ID 7416861208, 221 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Adirondack Medical Center - Saranac Lake Hospital, Saranac Lake, NY, CCN 330079

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: elizabeth.buck.1@1823.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.

• Hudson Headwaters Health Network

  • Primary Care Clinic/Center
  • Warrensburg, NY
  • NPI 1194738344

  Internal Medicine, NY

  Medicare reassignment NPD
• Hudson Headwaters Health Network

  • Primary Care Clinic/Center
  • Salem, NY
  • NPI 1982417119

  Pediatrics

  NPD
• Hudson Headwaters Health Network

  • Primary Care Clinic/Center
  • Champlain, NY
  • NPI 1245285170
  NPD (past)
• Frederick Health Hospital Inc

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)

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

• Adirondack Medical Center

  • General Acute Care Hospital
  • Saranac Lake, NY
  • NPI 1699709576

  Hospital

  Care Compare affiliation
• Adirondack Medical Center

  • General Acute Care Hospital
  • Saranac Lake, NY
  • NPI 1851601108

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1139875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773273600000",
    "number": "1790759017",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9 CAREY RD",
            "city": "QUEENSBURY",
            "state": "NY",
            "postal_code": "128047880",
            "telephone_number": "518-761-0300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2249 STATE ROUTE 86 STE 3",
            "city": "SARANAC LAKE",
            "state": "NY",
            "postal_code": "129835646",
            "telephone_number": "518-891-3845",
            "fax_number": "518-891-1236"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "7 Stetson Rd",
            "address_purpose": "LOCATION",
            "city": "Tupper Lake",
            "state": "NY",
            "postal_code": "129862014",
            "country_code": "US",
            "telephone_number": "518-359-7222",
            "fax_number": "518-359-7664",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BUCK",
        "first_name": "ELIZABETH",
        "middle_name": "K. B.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-14",
        "last_updated": "2026-03-12",
        "certification_date": "2026-03-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "199807",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "199807",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01581346",
            "state": "NY"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "elizabeth.buck.1@1823.direct.athenahealth.com",
            "affiliation": "N",
            "address_1": "7 Stetson Rd",
            "city": "Tupper Lake",
            "state": "NY",
            "country_code": "US",
            "postal_code": "129862014",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "elizabeth.buck.1@1823.direct.athenahealth.com",
            "affiliation": "N",
            "address_1": "2249 State Route 86 Ste 3",
            "city": "Saranac Lake",
            "state": "NY",
            "country_code": "US",
            "postal_code": "129835646",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "ELIZABETH",
            "last_name": "BEISER",
            "middle_name": "K",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Carrie Marie Bradley
• Denice Ann Brady, RPH
• Jessica Brockway
• Matthew Raymond Brown, PHARM D
• Diane M. Bryjak, MFT
• Buffalo Vamc
• Nicole Bureau, B.S/M.S ED
• Eve M Burns, D.O.
• Trinity Bushey
• John Paul Bushway, MSW

• All providers in Saranac Lake, NY
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 12, 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.