Michael Fremgen, M.D.
Family Medicine Physician · Geneva, IL
Michael Fremgen, M.D. is a family medicine physician with a practice address in Geneva, Illinois, and NPI 1770583072, issued on Jul 28, 2005. Check the license (Illinois 036067396, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Michael Fremgen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036067396 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2425 Fargo Blvd, Geneva, IL 60134
- Phone
- (630) 232-2200
- Enumerated
- Jul 28, 2005
- Entity
- Type 1 · individual
Also registered at 2425 Fargo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Armbrust, DOStudent in an Organized Health Care Education/Training Program1548623572
- Warren Beeh, M.D.Family Medicine Physician1326048612
- Stacey Brown, PAPhysician Assistant1699940999
- Melissa Buckley, PT, MSPT, DPTPhysical Therapist1578604757
- Peter Cladis, M.D.Family Medicine Physician1467452755
- Katherine Fackler-Chapman, M.D.Family Medicine Physician1528068988
Verify Michael Fremgen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036067396Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
96% more Medicare Part D claims than the average family medicine physician in 2024
6,894 Medicare Part D claims for 775 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 95 claims were for opioids.
Most prescribed
- Levothyroxine Sodium317 claims
- Amlodipine Besylate267 claims
- Atorvastatin Calcium265 claims
- Rosuvastatin Calcium233 claims
- Lisinopril221 claims
- Metoprolol Succinate205 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.
The Medicare quality score for 2023: 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $51.79
1 payment, mostly food and beverage; the largest payer was W. L. Gore & Associates, Inc.. The 53,013 providers of this specialty with any payment received $861.30 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.
41 family medicine physician records list a Geneva practice address
They are 41 of the 1,023 NPPES records with a Geneva practice address, and 5,925 family medicine physician records in Illinois.
All 41 in Geneva → All 5,925 in Illinois → Every provider in Geneva →
Other family medicine physician records in Illinois
- Jon Aagaard, MDWheaton, IL1750496923
- Napoleon Abando, MDWoodstock, IL1003972753
- Nikka Abaricia, MDChicago, IL1790366342
- Mohemmed AbbasChicago, IL1609612522
- Muhammad AbbasAlton, IL1588341556
- Syed AbbasWest Dundee, IL1972733103
- Stefanie AbbottMaywood, IL1861137457
- Roann Abdeladl, MDEvanston, IL1437087103
- Ashraf Abdeljaber, M.DNormal, IL1023472636
- Ahmed Abdelkader, MDChicago, IL1659104230
Common questions
What is Michael Fremgen, M.D.'s NPI number?
Michael Fremgen, M.D.'s National Provider Identifier (NPI) is 1770583072, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael Fremgen, M.D. located?
The NPPES record lists a practice address at 2425 Fargo Blvd, Geneva, IL, 60134. Phone: (630) 232-2200. Providers update this record themselves, so call before visiting.
How can I verify Michael Fremgen, M.D.'s license?
NPPES lists Illinois license number 036067396, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Fremgen, M.D. prescribe under Medicare Part D?
In 2024, Michael Fremgen, M.D. had 6,894 Medicare Part D claims for 775 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
What is Michael Fremgen, M.D.'s Medicare quality score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.