Reed P Haag, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

191829-1 Issued in NY

Practice address

121 Prospect St
Attica, NY 14011

Phone

(585) 708-4024

Fax

(585) 708-4042

NPI assigned

Feb 9, 2007

Last updated

Nov 10, 2025By 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 1

Addresses

Other identifiers 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: reed.haag.1@29374.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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Haag Medical PLLC

  • Internal Medicine Physician
  • Warsaw, NY
  • NPI 1720266927
  Medicare reassignment NPD Authorized official
• David H Graham

  • Family Medicine Physician
  • Wellsville, NY
  • NPI 1306048996
  NPD (past)
• TTPM, Inc

  • Health Information Technician
  • Elmira, NY
  • NPI 1619010014
  NPD (past)

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

{
    "created_epoch": "1170979200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762732800000",
    "number": "1427199827",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "722 W WATER ST",
            "city": "ELMIRA",
            "state": "NY",
            "postal_code": "149052435",
            "telephone_number": "607-271-2050",
            "fax_number": "607-271-2099"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "121 PROSPECT ST",
            "city": "ATTICA",
            "state": "NY",
            "postal_code": "14011",
            "telephone_number": "585-708-4024",
            "fax_number": "585-708-4042"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAAG",
        "first_name": "REED",
        "middle_name": "P",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-02-09",
        "last_updated": "2025-11-10",
        "certification_date": "2025-11-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "191829-1",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01274735",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jacquelin Victoria Deatcher, NP, CDE
• Melissa M Dispenza
• Erin Jessica Dressel, MS.PT
• Darren John Fox, P.T.A, A.T.C
• Karen E Grisko, RPH
• Rachel Jo Harmon, OTR/L
• Tara L Hay, LCSW-R
• Theresa Lee Houghton, PTA
• Necole Marie Hubbard, OTR/L
• Ninian Ikekwem

• Internal Medicine Physician in Attica, NY
• Providers in Attica, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 10, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.