NPPES file of Aug 9, 2026

Zachary Jon Ahola, MD

Family Medicine Physician · Columbus, WI

Zachary Jon Ahola, MD is a family medicine physician with a practice address in Columbus, Wisconsin, and NPI 1003307539, issued on May 21, 2018. Check the license (Wisconsin 81565-20, 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
1003307539
Name
Zachary Jon Ahola
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
81565-20 WI
Self-reported in NPPES; status is on the state search
Practice location
1515 Park Ave, Columbus, WI 53925
Phone
(920) 623-2200
Enumerated
May 21, 2018
Record last updated
Feb 13, 2026
Medicare enrollment
Enrolled (PECOS I20260225000543); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2018
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 1515 Park Ave

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

  1. Sean Ackerman, M.D.Psychiatry Physician1548559305
  2. John AdertonPhysical Therapist1659088946
  3. Rachel Adler, RD CDRegistered Dietitian1356519359
  4. Leslie Alzuhn-Hansen, MDObstetrics & Gynecology Physician1508871096
  5. Jennifer Arendt, RD, CDRegistered Dietitian1548576762
  6. Gloria Aweke, R.D.Registered Dietitian1578645081

Verify Zachary Jon Ahola in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 81565-20
    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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95% more Medicare Part D claims than the average family medicine physician in 2024

6,898 Medicare Part D claims for 570 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 135 claims were for opioids.

  1. Zachary Ahola6,898
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium410 claims
  2. Omeprazole275 claims
  3. Gabapentin239 claims
  4. Lisinopril225 claims
  5. Levothyroxine Sodium207 claims
  6. Losartan Potassium199 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. Aspirus Ironwood Hospital And Clinics IncHurley, WI

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

Zachary Jon Ahola among 3,765 family medicine physician records in Wisconsin

Zachary Jon Ahola, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.

  • NPI issued2018 · 84% of these records are older, 14% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2018 · median 2007 among the 2,347 with a school on file
  • Record last updated2026 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 family medicine physician records list a practice address in Columbus

They are 11 of the 138 NPPES records with a practice address in Columbus, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Janis Byrd, MDColumbus, WI 539251306895214
  2. Jean Carstensen, M.D.Columbus, WI 539251467655613
  3. Justinne Certeza, D.O.Columbus, WI 539251104562024
  4. Charles Hansell, MDColumbus, WI 539251699724179
  5. Elizabeth Larson, MDColumbus, WI 539251912141433
  6. Elise Malzer, MDColumbus, WI 539251851853626
  7. Colin Millar, MDColumbus, WI 539251134682016
  8. Thomas Mitchell, MDColumbus, WI 539251891764114

Common questions

What is Zachary Jon Ahola, MD's NPI number?

Zachary Jon Ahola, MD's National Provider Identifier (NPI) is 1003307539, issued on May 21, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Zachary Jon Ahola, MD located?

The NPPES record lists a practice address at 1515 Park Ave, Columbus, WI, 53925. Phone: (920) 623-2200. Providers update this record themselves, so call before visiting.

How can I verify Zachary Jon Ahola, MD's license?

NPPES lists Wisconsin license number 81565-20, 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 Zachary Jon Ahola, MD prescribe under Medicare Part D?

In 2024, Zachary Jon Ahola, MD had 6,898 Medicare Part D claims for 570 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.