Timothy R Pieh, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

29404 Issued in MN

Practice address

101 Willmar Ave SW
Willmar, MN 56201-3556

Phone

(320) 231-5000

Fax

(320) 231-5067

NPI assigned

Feb 23, 2006

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 MN

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

Ophthalmology

Education

University of Minnesota Medical School, 1984

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dvorak Cataract and Eye Laser Clinic, PAGroup PAC ID 8527349679, 3 clinicians

Practice addresses (Care Compare)

Procedures performed for Medicare patients

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 and National Provider Directory roles.

• Dvorak Cataract and Eye Laser Clinic, PA

  • Ophthalmology Physician
  • Sauk Rapids, MN
  • NPI 1811431810
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1140652800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1720054497",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 WILLMAR AVE SW",
            "city": "WILLMAR",
            "state": "MN",
            "postal_code": "562013556",
            "telephone_number": "320-231-5000",
            "fax_number": "320-231-5067"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 WILLMAR AVE SW",
            "city": "WILLMAR",
            "state": "MN",
            "postal_code": "562013556",
            "telephone_number": "320-231-5000",
            "fax_number": "320-231-5067"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PIEH",
        "first_name": "TIMOTHY",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-23",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "MN",
            "license": "29404",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rebecca Jean Petersen, LPN PE
• Brett Wayne Peterson, D.C.
• Eric Julian Peterson, CRNA,MSN
• Jason D Peterson, D.C.
• Melissa Ann Peterson, LPCC
• Joshua Allen Pierskalla, LMFT
• Planned Parenthood Minnesota, North Dakota, South Dakota
• James Douglas Pohl, CNP, PMHNP, RN
• Samantha Pommier
• Kristin Michelle Pomplun, FNP

• Ophthalmology Physician in Willmar, MN
• Providers in Willmar, MN by specialty
• Ophthalmology Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.