Genevieve A. Sierminski, M.D.
Nephrology Physician · Flint, MI
Genevieve A. Sierminski, M.D. is a nephrology physician with a practice address in Flint, Michigan, and NPI 1376742858, issued on Jul 13, 2007. Check the license (Michigan 4301085687, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Genevieve A. Sierminski
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 4301085687 MI
Self-reported in NPPES; status is on the state search - Practice location
- G1071 N Ballenger Hwy, Flint, MI 48504
- Phone
- (810) 238-4172
- Enumerated
- Jul 13, 2007
- Record last updated
- Feb 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (810) 238-4153
- Medicare enrollment
- Enrolled (PECOS I20070813000239); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 376 in Michigan → Look up another NPI →
Also registered at G1071 N Ballenger Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmad Abdel Halim, M.D.Internal Medicine Physician1649312828
- Evelyn Alumit, M.D.Specialist1225028970
- Brian Bhagat, M.D.Internal Medicine Physician1396746582
- Neeraj Bhole, PTPhysical Therapist1073850640
- Deana Booth, LPTAPhysical Therapy Assistant1801255419
- Manjit Grewal, M.D.Nephrology Physician1982694519
Verify Genevieve A. Sierminski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301085687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average nephrology physician in 2024
1,757 Medicare Part D claims for 382 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Amlodipine Besylate212 claims
- Hydralazine Hcl132 claims
- Furosemide128 claims
- Lisinopril90 claims
- Losartan Potassium90 claims
- Potassium Chloride84 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: $20.72
1 payment: food and beverage; the largest payer was Fresenius USA Marketing, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Nephrology And Internal Medicine PCOwosso, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Genevieve A. Sierminski among 376 nephrology physician records in Michigan
Genevieve A. Sierminski, M.D. is one of 376 nephrology physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 36% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1999 · median 2001 among the 279 with a school on file
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Michigan
There are 376 nephrology physician records in Michigan.
All 376 in Michigan → Every provider in Flint → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Manjit Grewal, M.D.Flint, MI 485041982694519
- Yaseen Hashish, M.D.Flint, MI 485041821176785
- Ali Mohammed, M.D.Flint, MI 485041396735940
- Vaibhav Sahni, M.D.Flint, MI 485041326208455
- Kunal Singh, M.D.Flint, MI 485071568800340
- Mohamed Abdalla, M.D.Flint, MI 485321760797344
- Jagdish Mirchandani, M.D.Flint, MI 485321710940853
- Imad Modawi, M.D.Flint, MI 485321124224415
Common questions
What is Genevieve A. Sierminski, M.D.'s NPI number?
Genevieve A. Sierminski, M.D.'s National Provider Identifier (NPI) is 1376742858, issued on Jul 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Genevieve A. Sierminski, M.D. located?
The NPPES record lists a practice address at G1071 N Ballenger Hwy, Flint, MI, 48504. Phone: (810) 238-4172. Providers update this record themselves, so call before visiting.
How can I verify Genevieve A. Sierminski, M.D.'s license?
NPPES lists Michigan license number 4301085687, 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 Genevieve A. Sierminski, M.D. prescribe under Medicare Part D?
In 2024, Genevieve A. Sierminski, M.D. had 1,757 Medicare Part D claims for 382 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.