NPPES file of Aug 9, 2026

Tammy Ann Pierner, M.D.

Psychiatry Physician · Portage, WI

Tammy Ann Pierner, M.D. is a psychiatry physician with a practice address in Portage, Wisconsin, and NPI 1063526580, issued on Aug 19, 2006. Check the license (Wisconsin 41555-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063526580
Name
Tammy Ann Pierner
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
41555-020 WI
Self-reported in NPPES; status is on the state search
Practice location
2901 Hunters Trl, Portage, WI 53901
Phone
(608) 745-5518
Enumerated
Aug 19, 2006
Record last updated
Jan 15, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(608) 742-4087
Medicaid ID
34606000 WI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest psychiatry physician records → All 929 in Wisconsin → Look up another NPI →

Also registered at 2901 Hunters Trl

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Renee Birkholz, LPC-IT, SASCounselor1467826990
  2. Rene Buenzow, DNP, PMHNP-BC, APRNPsychiatric/Mental Health Nurse Practitioner1548214810
  3. Lori Cornell, LPCCounselor1376052035
  4. Natalie Craig, MSW, APSWClinical Social Worker1831761915
  5. Kimberly Crowell, MSWClinical Social Worker1992301683
  6. Lynne Cummings, PSY.D.Counseling Psychologist1760411730

Verify Tammy Ann Pierner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 41555-020    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Tammy Ann Pierner among 929 psychiatry physician records in Wisconsin

Tammy Ann Pierner, M.D. is one of 929 psychiatry physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 50% newer
  • In a Medicare fileNo · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 47% of these records are
  • Record last updated2013 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Wisconsin

There are 929 psychiatry physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 929 in Wisconsin → Every provider in Portage → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Mario Valenzuela, MDPortage, WI 539011255436705
  2. Scott Borkenhagen, M.D.Beaver Dam, WI 539161083930879
  3. Jessica Farrell, MDBeaver Dam, WI 539161306306675
  4. Christina Friedl, MDBeaver Dam, WI 539161649899709
  5. Kenneth Graupner, MDBeaver Dam, WI 539161699797225
  6. Sean Ackerman, M.D.Columbus, WI 539251548559305
  7. Benjamin Kannenberg, MDColumbus, WI 539251861134009
  8. Nicole Larsen, MDColumbus, WI 539251033851183

Common questions

What is Tammy Ann Pierner, M.D.'s NPI number?

Tammy Ann Pierner, M.D.'s National Provider Identifier (NPI) is 1063526580, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tammy Ann Pierner, M.D. located?

The NPPES record lists a practice address at 2901 Hunters Trl, Portage, WI, 53901. Phone: (608) 745-5518. Providers update this record themselves, so call before visiting.

How can I verify Tammy Ann Pierner, M.D.'s license?

NPPES lists Wisconsin license number 41555-020, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.