Matthew Dalton Simson, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

337874 Issued in NY

Practice address

601 Elmwood Avenue
# 679
Rochester, NY 14642-0001

Phone

(585) 275-4290

Fax

(585) 473-1573

NPI assigned

Apr 26, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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 Medicine

Education

Other, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• St Josephs Medical PC

  • Family Medicine Physician
  • Liverpool, NY
  • NPI 1942501747
  Medicare reassignment
• Cardiology Clinical Group

  • Cardiovascular Disease Physician
  • Rochester, NY
  • NPI 1811936727
  NPD (past)

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

{
    "created_epoch": "1619395200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786060800000",
    "number": "1245812403",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "601 ELMWOOD AVENUE",
            "address_2": "BOX 679",
            "city": "ROCHESTER",
            "state": "NY",
            "postal_code": "146420001",
            "telephone_number": "585-275-4290",
            "fax_number": "585-473-1573"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 ELMWOOD AVENUE",
            "address_2": "# 679",
            "city": "ROCHESTER",
            "state": "NY",
            "postal_code": "146420001",
            "telephone_number": "585-275-4290",
            "fax_number": "585-473-1573"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "301 Prospect Ave",
            "address_purpose": "LOCATION",
            "city": "Syracuse",
            "state": "NY",
            "postal_code": "132031807",
            "country_code": "US",
            "telephone_number": "315-448-5111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIMSON",
        "first_name": "MATTHEW",
        "middle_name": "DALTON",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-26",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "337874",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michelle Ann Sims, LCSW
• Shyaisa M Sims
• Takeya Lashey Sims, LPN
• Valorie J Sims, RN
• Yakup Simsek, DPT
• Michael David Simson, MD
• Pierre Sinajon, MD, FRCPC, FCCMG
• John Sinclair, DO
• Kayann Sinclair, RN
• Katherine Norwood Sinclaire, LCSW

• Internal Medicine Physician in Rochester, NY
• Providers in Rochester, 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 Aug 7, 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.