Stefan Mathew Pienkowski, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

72286 Issued in TN

Practice address

7417 Kingston Pike Ste 101
Knoxville, TN 37919-5616

Phone

(865) 584-4112

NPI assigned

Mar 20, 2023

Last updated

Jun 29, 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 1

Addresses

Medicare fee-for-service enrollment

Enrolled in TN

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

Family Practice

Education

East Tennessee State University Quillen College of Medicine, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Tristar Southern Hills Medical Center Hospital, Nashville, TN, CCN 440197

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: stefan.pienkowski@hca1.eclinicaldirectplus.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.

• Allergic Diseases Asthma & Immunology Clinic PC

  • Allergy Physician
  • Knoxville, TN
  • NPI 1205879400
  NPD

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

• HCA Health Services of Tennessee, Inc.

  dba Tristar Southern Hills Medical Center

  • General Acute Care Hospital
  • Nashville, TN
  • NPI 1720032345
  Care Compare affiliation

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

{
    "created_epoch": "1679270400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782691200000",
    "number": "1619679032",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7417 KINGSTON PIKE",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379195606",
            "telephone_number": "865-584-4112"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7417 KINGSTON PIKE STE 101",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379195616",
            "telephone_number": "865-584-4112"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PIENKOWSKI",
        "first_name": "STEFAN",
        "middle_name": "MATHEW",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-20",
        "last_updated": "2026-06-29",
        "certification_date": "2026-06-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "TN",
            "license": "72286",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Erin Hagen Pidkowicz, FNP-BC
• Joseph Kevin Pidkowicz, DO
• Wes Piekosz, RPT
• Nathaniel Robert Piel, M.D.
• Marek M Pienkowski, M.D., PH.D.
• Shelley Genevieve Pier, MSW
• Claire Pierce
• Donna Snyder Pierce, RD PHD
• Gemma Pierce
• James Edwin Pierce, PHARM D

• Family Medicine Physician in Knoxville, TN
• Providers in Knoxville, TN by specialty
• Family Medicine Physician in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 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.