Ann K. Markes, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

54512 Issued in MA

Practice address

43 Center St
Suite 201
Northampton, MA 01060-3063

Phone

(413) 587-4223

Fax

(413) 587-0416

NPI assigned

Feb 15, 2006

Last updated

Sep 11, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 6

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Pioneer Valley Travel Medicine PC

  • Internal Medicine Physician
  • Northampton, MA
  • NPI 1679610968
  NPD (past) Authorized official
• Baystate Affiliated Practice Organization

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1043256043
  NPD (past)
• Mass General Brigham Medical Group Western Massachusetts Inc

  • Family Medicine Physician
  • Northampton, MA
  • NPI 1295787919

  Internal Medicine

  NPD (past)
• Frances Mahon Deaconess Hospital

  • Critical Access Hospital
  • Glasgow, MT
  • NPI 1689685323
  NPD (past)

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

{
    "created_epoch": "1139961600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1407820640",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "43 CENTER ST",
            "address_2": "SUITE 201",
            "city": "NORTHAMPTON",
            "state": "MA",
            "postal_code": "010603063",
            "telephone_number": "413-587-4223",
            "fax_number": "413-587-0416"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "43 CENTER ST",
            "address_2": "SUITE 201",
            "city": "NORTHAMPTON",
            "state": "MA",
            "postal_code": "010603063",
            "telephone_number": "413-587-4223",
            "fax_number": "413-587-0416"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARKES",
        "first_name": "ANN",
        "middle_name": "K.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-02-15",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "54512",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "54512",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS",
            "identifier": "054512",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBSMA",
            "identifier": "J07944",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CONNECTICARE",
            "identifier": "799159",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "HARVARD",
            "identifier": "AA24090.",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "31004460",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BMC HEALTH NET",
            "identifier": "000000029485",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Lynn Frances Marhefka
• Luminita Marinescu, MD
• Allison Marino, LMT
• Mark H Fournier (Fournier Foot Care Center)
• Jennifer Markens, LICSW
• Marilyn E. Marks
• Caryn Markson, ED.D.
• Jill Ellen Marland, LICSW MSW
• Frank Marotta, PH.D.
• Joy Marouki

• Pediatrics Physician in Northampton, MA
• Providers in Northampton, MA by specialty
• Pediatrics Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.