Charles T. Zenzen, MD
Ophthalmology Physician · Grand Blanc, MI
Charles T. Zenzen, MD is an ophthalmology physician with a practice address in Grand Blanc, Michigan, and NPI 1265448930, issued on Aug 1, 2006. Check the license (Michigan 4301074506, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Charles T. Zenzen
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 4301074506 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2240 E Hill RD, Grand Blanc, MI 48439
- Phone
- (810) 579-0202
- Enumerated
- Aug 1, 2006
- Record last updated
- Sep 28, 2022
- Fax
- (810) 579-0204
- Medicare enrollment
- Enrolled (PECOS I20040405000320); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 791 in Michigan → Look up another NPI →
Also registered at 2240 E Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Rohr, D.O.Ophthalmology Physician1952331696
Verify Charles T. Zenzen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301074506Check 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 ophthalmology physician in 2024
2,980 Medicare Part D claims for 745 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Latanoprost1,033 claims
- Ketorolac Tromethamine355 claims
- Moxifloxacin351 claims
- Prednisolone Acetate344 claims
- Brimonidine Tartrate313 claims
- Timolol Maleate145 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 practice group's MIPS final score for 2023 (Medicare payment program): 78 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $95.69
4 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 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 one group practice
- Michigan Ophthalmology Specialists PLLCGrand Blanc, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles T. Zenzen among 791 ophthalmology physician records in Michigan
Charles T. Zenzen, MD is one of 791 ophthalmology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 22% of them.
- NPI issued2006 · 22% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1999 · median 2002 among the 548 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Michigan
There are 791 ophthalmology physician records in Michigan.
All 791 in Michigan → Every provider in Grand Blanc → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Christopher Herzog, D.O.Grand Blanc, MI 484391598797474
- Ankur Mehta, MDGrand Blanc, MI 484391194981985
- Jeffrey Rohr, D.O.Grand Blanc, MI 484391952331696
- Christopher Singh, MDGrand Blanc, MI 484391083724900
- Raafay Sophie, MDGrand Blanc, MI 484391285044107
- Amy Zhang, MDGrand Blanc, MI 484391932369055
- Athear Alrawi, MDLapeer, MI 484461477631141
- Deepak Mangla, M.D.Lapeer, MI 484461942648902
Common questions
What is Charles T. Zenzen, MD's NPI number?
Charles T. Zenzen, MD's National Provider Identifier (NPI) is 1265448930, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles T. Zenzen, MD located?
The NPPES record lists a practice address at 2240 E Hill RD, Grand Blanc, MI, 48439. Phone: (810) 579-0202. Providers update this record themselves, so call before visiting.
How can I verify Charles T. Zenzen, MD's license?
NPPES lists Michigan license number 4301074506, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles T. Zenzen, MD prescribe under Medicare Part D?
In 2024, Charles T. Zenzen, MD had 2,980 Medicare Part D claims for 745 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Charles T. Zenzen, MD's MIPS final score?
The 2023 MIPS final score is 78 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.