Gregory B. Pehling, MD
Endocrinology, Diabetes & Metabolism Physician · La Crosse, WI
Gregory B. Pehling, MD is an endocrinology, diabetes & metabolism physician with a practice address in La Crosse, Wisconsin, and NPI 1871595116, issued on Jun 1, 2005. Check the license (Wisconsin 25680, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gregory B. Pehling
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 25680 WI
Self-reported in NPPES; status is on the state search - Practice location
- 800 West Ave S, La Crosse, WI 54601
- Phone
- (608) 785-0940
- Enumerated
- Jun 1, 2005
- Record last updated
- May 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 187 in Wisconsin → Look up another NPI →
Also registered at 800 West Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mais AbdouPulmonary Disease Physician1326572066
- Christine Alioto, PTPhysical Therapist1942284641
- Sadaf Altaf, MBBSPediatrics Physician1457492076
- Stephanie Andersen, OTROccupational Therapist1386773125
- Daniel Anderson, D.O.Neurology Physician1770996340
- Nitika Arora, M.D.Ophthalmology Physician1629419031
Verify Gregory B. Pehling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 25680Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
361 Medicare Part D claims for 34 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Vivitrol22 claims
- Losartan Potassium20 claims
- Tamsulosin Hcl19 claims
- Ozempic18 claims
- Insulin Glargine-Yfgn17 claims
- Metformin Hcl Er17 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: $152.39
9 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Gregory B. Pehling among 187 endocrinology, diabetes & metabolism physician records in Wisconsin
Gregory B. Pehling, MD is one of 187 endocrinology, diabetes & metabolism physician records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2019 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Wisconsin
There are 187 endocrinology, diabetes & metabolism physician records in Wisconsin.
All 187 in Wisconsin → Every provider in La Crosse → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Arnold Asp, MDLa Crosse, WI 546011700888922
- Madeline Fasen, DOLa Crosse, WI 546011033613583
- Mary Frohnauer, MDLa Crosse, WI 546011013018704
- Jane Korducki, MDLa Crosse, WI 546011356339535
- Rachel McKenney, MDLa Crosse, WI 546011033349246
- Kharisa Rachmasari, M.D.La Crosse, WI 546011225525215
- Richard Reynertson, MDLa Crosse, WI 546011093717050
- Aiman Riaz, M.DLa Crosse, WI 546011992157903
Common questions
What is Gregory B. Pehling, MD's NPI number?
Gregory B. Pehling, MD's National Provider Identifier (NPI) is 1871595116, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory B. Pehling, MD located?
The NPPES record lists a practice address at 800 West Ave S, La Crosse, WI, 54601. Phone: (608) 785-0940. Providers update this record themselves, so call before visiting.
How can I verify Gregory B. Pehling, MD's license?
NPPES lists Wisconsin license number 25680, 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 Gregory B. Pehling, MD prescribe under Medicare Part D?
In 2024, Gregory B. Pehling, MD had 361 Medicare Part D claims for 34 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.