Markian R. Iwaszko, MD
Urology Physician · Grand Rapids, MI
Markian R. Iwaszko, MD is a urology physician with a practice address in Grand Rapids, Michigan, and NPI 1659380939, issued on Aug 5, 2006. Check the license (Michigan 4301095939, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Markian R. Iwaszko
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- 4301095939 MI
01089840A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1000 E Paris Ave SE Ste 230, Grand Rapids, MI 49546
- Phone
- (616) 949-4340
- Enumerated
- Aug 5, 2006
- Record last updated
- Dec 16, 2025
- Fax
- (616) 949-4341
- Medicare enrollment
- Enrolled (PECOS I20101102000370); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2005
- Entity
- Type 1 · individual
Also registered at 1000 E Paris Ave SE Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Warren Figueira, RBTBehavior Technician1033951793
- Skylar LittlefieldBehavior Technician1700756673
- Andrew McElroy, MDUrology Physician1578095766
Verify Markian R. Iwaszko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301095939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average urology physician in 2024
932 Medicare Part D claims for 285 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Tamsulosin Hcl277 claims
- Finasteride134 claims
- Myrbetriq61 claims
- Ciprofloxacin Hcl53 claims
- Alfuzosin Hcl Er52 claims
- Oxybutynin Chloride45 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: $1,009.79
48 payments; by number, the most common kind was food and beverage; the largest payer was Coloplast Corp. The 9,340 providers of this specialty with any payment received $3,800.04 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.
5 hospitals and group practices
- Bronson Methodist HospitalKalamazoo, MI · Acute Care Hospitals4 of 5 stars
- Bronson Battle Creek HospitalBattle Creek, MI · Acute Care Hospitals3 of 5 stars
- Covenant Medical Center IncSaginaw, MI
- Sheridan Community HospitalSheridan, MI · Critical Access Hospitals
- Urology Surgeons PCGrand Rapids, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Urology Physician providers in Michigan
There are 446 urology physician records in Michigan.
Other urology physician records in Michigan
- Mazen Abdelhady, M.D.Detroit, MI1669771507
- Firas Abdollah, M.D.Detroit, MI1932591898
- John Addington, PA-CRochester Hills, MI1306942784
- Anthony Adeleye, MDWarren, MI1275552655
- Muzammil Ahmed, M.D.Westland, MI1689649873
- Abdulrahman AlruwailyAnn Arbor, MI1154787604
- Nitin Ambani, M.D.Ann Arbor, MI1417966060
- Sapan Ambani, M.D.Ann Arbor, MI1063640175
- Barrett Anderson, D.O.Detroit, MI1972735587
- John Anema, M.D.Grand Rapids, MI1053411215
Common questions
What is Markian R. Iwaszko, MD's NPI number?
Markian R. Iwaszko, MD's National Provider Identifier (NPI) is 1659380939, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Markian R. Iwaszko, MD located?
The NPPES record lists a practice address at 1000 E Paris Ave SE Ste 230, Grand Rapids, MI, 49546. Phone: (616) 949-4340. Providers update this record themselves, so call before visiting.
How can I verify Markian R. Iwaszko, MD's license?
NPPES lists Michigan license number 4301095939, 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 Markian R. Iwaszko, MD prescribe under Medicare Part D?
In 2024, Markian R. Iwaszko, MD had 932 Medicare Part D claims for 285 beneficiaries; the average among urology physician prescribers was 1,340. 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.