Registry data as of Aug 27, 2026

Michael Frontiera, MD

Hematology & Oncology Physician · Madison, WI

Michael Frontiera, MD is a hematology & oncology physician with a practice address in Madison, Wisconsin, and NPI 1669428017, issued on May 26, 2006. Check the license (Wisconsin 27625-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1669428017
Name
Michael Frontiera
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
27625-020 WI
Self-reported in NPPES; status is on the state search
Practice location
1211 Fish Hatchery RD., Madison, WI 53715
Phone
(608) 252-8000
Enumerated
May 26, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1211 Fish Hatchery RD.

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yamil Arbaje, MDHematology & Oncology Physician1033162904
  2. Scott Bilse, PA-CPhysician Assistant1245297944
  3. Michael Breunig, DOSports Medicine (Internal Medicine) Physician1811276645
  4. James Christensen, MDSports Medicine (Orthopaedic Surgery) Physician1093072019
  5. Bailey Floerke, PA-CStudent in an Organized Health Care Education/Training Program1124656103
  6. Jennifer Gaschke, PA-CPhysician Assistant1316989874

Verify Michael Frontiera in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 27625-020
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

9% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

804 Medicare Part D claims for 223 beneficiaries, against an average of 885 among the 8,428 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Michael Frontiera804
  2. Specialty average885

Most prescribed

  1. Anastrozole444 claims
  2. Tamoxifen Citrate35 claims
  3. Alendronate Sodium30 claims
  4. Exemestane24 claims
  5. Xtandi22 claims
  6. Imbruvica21 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: $3,845.00

4 payments, mostly consulting fee; the largest payer was AstraZeneca Pharmaceuticals LP. The 6,678 providers of this specialty with any payment received $7,643.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Frontiera$3,845.00
  2. Specialty average$7,643.36

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Hematology & Oncology Physician providers in Wisconsin

There are 233 hematology & oncology physician records in Wisconsin.

Other hematology & oncology physician records in Wisconsin

  1. Chady Abboud Leon, M.D.Marshfield, WI1770737744
  2. Rami Abumasmah, MDOshkosh, WI1972779551
  3. Kalid Adab, MDMilwaukee, WI1346473345
  4. Jacob Adashek, DOGermantown, WI1144780107
  5. Gulrayz Ahmed, M.D.Milwaukee, WI1033561808
  6. Ramsha Ahmed, MDMilwaukee, WI1942786462
  7. Othman AkhtarMilwaukee, WI1619325404
  8. Eyad Al-Hattab, MDEau Claire, WI1750395745
  9. Soham AliMadison, WI1437891793
  10. Kaitlin Annunzio, DOMilwaukee, WI1083110951

Common questions

What is Michael Frontiera, MD's NPI number?

Michael Frontiera, MD's National Provider Identifier (NPI) is 1669428017, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Frontiera, MD located?

The NPPES record lists a practice address at 1211 Fish Hatchery RD., Madison, WI, 53715. Phone: (608) 252-8000. Providers update this record themselves, so call before visiting.

How can I verify Michael Frontiera, MD's license?

NPPES lists Wisconsin license number 27625-020, 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 Michael Frontiera, MD prescribe under Medicare Part D?

In 2024, Michael Frontiera, MD had 804 Medicare Part D claims for 223 beneficiaries; the average among hematology & oncology physician prescribers was 885. Part D covers Medicare prescriptions only.

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.