NPPES file of Aug 9, 2026

Peter A. Halverson, MD

Internal Medicine Physician · Eau Claire, WI

Peter A. Halverson, MD is an internal medicine physician with a practice address in Eau Claire, Wisconsin, and NPI 1609039924, issued on Jul 7, 2008. Check the license (Wisconsin 52087-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609039924
Name
Peter A. Halverson
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
52087-020 WI
Self-reported in NPPES; status is on the state search
Practice location
733 W Clairemont Ave, Eau Claire, WI 54701
Phone
(715) 838-5222
Enumerated
Jul 7, 2008
Record last updated
Nov 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081018000202); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2006
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 733 W Clairemont Ave

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

  1. Abdulla Akfaly, MDInternal Medicine Physician1619956224
  2. Kay Alberg, RDNutritionist1962775791
  3. Richard Alfuth, MDFamily Medicine Physician1194783209
  4. John Anczak, PACPhysician Assistant1881793206
  5. Matthew Anderson, LPCProfessional Counselor1366698706
  6. Aamir Ansari, M.D.Pediatrics Physician1295918696

Verify Peter A. Halverson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 52087-020
    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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3.7 times the Medicare Part D claims of the average internal medicine physician in 2024

11,713 Medicare Part D claims for 1,100 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 186 claims were for opioids.

  1. Peter Halverson11,713
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium880 claims
  2. Amlodipine Besylate469 claims
  3. Levothyroxine Sodium445 claims
  4. Lisinopril441 claims
  5. Rosuvastatin Calcium432 claims
  6. Metoprolol Succinate415 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter A. Halverson among 2,078 internal medicine physician records in Wisconsin

Peter A. Halverson, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.

  • NPI issued2008 · 60% of these records are older, 37% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2006 · median 2002 among the 1,098 with a school on file
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 internal medicine physician records list a practice address in Eau Claire

They are 54 of the 3,085 NPPES records with a practice address in Eau Claire, and 2,078 internal medicine physician records in Wisconsin.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Abdulla Akfaly, MDEau Claire, WI 547011619956224
  2. Jenifer Bassett, M.D.Eau Claire, WI 547011376503615
  3. Matthew Cove, MDEau Claire, WI 547011346229952
  4. Martha Hidalgo, MDEau Claire, WI 547011508864547
  5. Brian Kosiak, MDEau Claire, WI 547011336150259
  6. Darren Lokkesmoe, MDEau Claire, WI 547011164401774
  7. Willie Pangilinan, MDEau Claire, WI 547011639151236
  8. Kristine Reesman, DOEau Claire, WI 547011275573214

Common questions

What is Peter A. Halverson, MD's NPI number?

Peter A. Halverson, MD's National Provider Identifier (NPI) is 1609039924, issued on Jul 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Peter A. Halverson, MD located?

The NPPES record lists a practice address at 733 W Clairemont Ave, Eau Claire, WI, 54701. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.

How can I verify Peter A. Halverson, MD's license?

NPPES lists Wisconsin license number 52087-020, 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.

How much does Peter A. Halverson, MD prescribe under Medicare Part D?

In 2024, Peter A. Halverson, MD had 11,713 Medicare Part D claims for 1,100 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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

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.