Kerry L. Ahrens, M.D.
Emergency Medicine Physician · Green Bay, WI
Kerry L. Ahrens, M.D. is an emergency medicine physician with a practice address in Green Bay, Wisconsin, and NPI 1639497621, issued on May 14, 2010. Check the license (Wisconsin 56440, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Kerry L. Ahrens
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 56440 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2845 Greenbrier RD, Green Bay, WI 54311
- Phone
- (920) 288-4060
- Enumerated
- May 14, 2010
- Record last updated
- Apr 9, 2024
- Fax
- (920) 288-4067
- Medicaid ID
- 1639497621 WI
- Medicare enrollment
- Enrolled (PECOS I20130424000511); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2010
- Entity
- Type 1 · individual
Also registered at 2845 Greenbrier RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jade Abts, NPNurse Practitioner1992293708
- Ian AdamsonCertified Registered Nurse Anesthetist1184981532
- Andrea Akpoguma, M.D.Hospitalist Physician1508091117
- Kirsten Akpoguma, CRNACertified Registered Nurse Anesthetist1417601725
- Valerie Albers, A.P.N.P.Nurse Practitioner1396015830
- Candena Allenbrand, M.D.Neonatal-Perinatal Medicine Physician1285626846
Verify Kerry L. Ahrens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 56440Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average emergency medicine physician in 2024
252 Medicare Part D claims for 165 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 12 claims were for opioids.
Most prescribed
- Prednisone25 claims
- Cephalexin24 claims
- Dexamethasone22 claims
- Doxycycline Monohydrate19 claims
- Methylprednisolone18 claims
- Ondansetron Odt14 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.
Industry payments in 2024: $99.90
2 payments; by number, the most common kind was education; the largest payer was Genentech, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 4 group practices
- Aurora Health Care North IncTwo Rivers, WI
- Aurora Medical Group, Inc.Oshkosh, WI
- Baycare Aurora LLCKaukauna, WI
- Baycare Clinic LLPGreen Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emergency Medicine Physician providers in Wisconsin
There are 1,464 emergency medicine physician records in Wisconsin.
Other emergency medicine physician records in Wisconsin
- Hythem Abad, DOPortage, WI1548799455
- Alan Abdulla, D.O.Waukesha, WI1508164419
- Krystyna Abdulla, DONew Berlin, WI1205146578
- Abdulmoniem Abdulmoniem, M.D.Elkhorn, WI1194175042
- Justine Abel, DOEau Claire, WI1861830507
- Michael Abernethy, MDMadison, WI1013972579
- Meinkeng Acha-Morfaw, MDMadison, WI1467934836
- Manish Acharya, M.D.Milwaukee, WI1437129715
- Axel AdamsMadison, WI1366905192
- Eric Adar, MDWauwatosa, WI1255325726
Common questions
What is Kerry L. Ahrens, M.D.'s NPI number?
Kerry L. Ahrens, M.D.'s National Provider Identifier (NPI) is 1639497621, issued on May 14, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Kerry L. Ahrens, M.D. located?
The NPPES record lists a practice address at 2845 Greenbrier RD, Green Bay, WI, 54311. Phone: (920) 288-4060. Providers update this record themselves, so call before visiting.
How can I verify Kerry L. Ahrens, M.D.'s license?
NPPES lists Wisconsin license number 56440, 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 Kerry L. Ahrens, M.D. prescribe under Medicare Part D?
In 2024, Kerry L. Ahrens, M.D. had 252 Medicare Part D claims for 165 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.