Joseph H Flaherty, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

R4546 Issued in TX

Practice address

3660 Vista
St Louis, MO 63110

Phone

(314) 977-8462

Fax

(314) 771-8575

NPI assigned

Aug 4, 2006

Last updated

Jan 27, 2026By 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 3

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

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

Saint Louis University School of Medicine, 1990

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Questcare Matrix PLLCGroup PAC ID 7719137397, 40 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Vitalcaring Group Home health agency, Sulphur Springs, TX, CCN 679076
• Medical City Plano Hospital, Plano, TX, CCN 450651

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Questcare Matrix, PLLC

  • Emergency Medicine Physician
  • Grapevine, TX
  • NPI 1316295066

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Questcare Hospitalists PLLC

  • Emergency Medicine Physician
  • Dallas, TX
  • NPI 1265441620

  Internal Medicine

  Medicare reassignment NPD
• Questcare Matrix, PLLC

  • Internal Medicine Physician
  • Houston, TX
  • NPI 1629524665
  NPD
• Questcare Matrix, PLLC

  • Emergency Medicine Physician
  • McKinney, TX
  • NPI 1740605492

  Internal Medicine

  NPD

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

• Columbia Medical Center of Plano Subsidiary LP

  dba Medical City Plano

  • General Acute Care Hospital
  • Plano, TX
  • NPI 1699726406
  Care Compare affiliation
• Northeast Texas Home Health Agency, LTD

  dba VitalCaring Group

  • Home Health Agency
  • Sulphur Springs, TX
  • NPI 1467591032
  Care Compare affiliation

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

{
    "created_epoch": "1154649600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769472000000",
    "number": "1710995568",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3691 RUTGER AVE",
            "address_2": "PROVIDER ENROLLMENT",
            "city": "ST LOUIS",
            "state": "MO",
            "postal_code": "63110",
            "telephone_number": "314-977-4440"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3660 VISTA",
            "city": "ST LOUIS",
            "state": "MO",
            "postal_code": "63110",
            "telephone_number": "314-977-8462",
            "fax_number": "314-771-8575"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLAHERTY",
        "first_name": "JOSEPH",
        "middle_name": "H",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-04",
        "last_updated": "2026-01-27",
        "certification_date": "2026-01-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "R4546",
            "primary": true
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "TX",
            "license": "R4546",
            "primary": false
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "MO",
            "license": "103448",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Taylor Matthew Fix, DO
• Heather Louise Fjone, MSW, LCSW
• Ryan Charles Flach, MD
• Donald J Flacke, CRNA
• Kathryn Flaharty, MD
• Silvio Flaim, PHARMD
• Lisa Ann Flake, ABA
• Bailey Flamm, MD
• Mary Ellen Flanagan, AGNP
• Matthew Flanagan, PSYD

• Internal Medicine Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Internal Medicine Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 27, 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.