Michael Nunag, D.O.
Internal Medicine Physician · Cudahy, WI
Michael Nunag, D.O. is an internal medicine physician with a practice address in Cudahy, Wisconsin, and NPI 1588827729, issued on Jul 8, 2008. Check the license (Wisconsin 55981, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael Nunag
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 55981 WI
Self-reported in NPPES; status is on the state search - Practice location
- 5900 S Lake Dr, Cudahy, WI 53110
- Phone
- (414) 489-9050
- Enumerated
- Jul 8, 2008
- Record last updated
- Nov 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (414) 489-4015
- Medicare enrollment
- Enrolled (PECOS I20110831000169); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 5900 S Lake Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephanie Blaha, PA-CPhysician Assistant1366054116
- Brenda Blunt, APNPNurse Practitioner1174878839
- Hayley Bunger, NPNurse Practitioner1841905247
- Gina Buono, MDHospitalist Physician1467411546
Verify Michael Nunag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 55981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average internal medicine physician in 2024
10,442 Medicare Part D claims for 504 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 58 claims were for opioids.
Most prescribed
- Atorvastatin Calcium786 claims
- Amlodipine Besylate428 claims
- Pantoprazole Sodium338 claims
- Furosemide307 claims
- Omeprazole281 claims
- Levothyroxine Sodium277 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.
Bills Medicare through 2 group practices
- Advantage Physical Therapy And Sports Rehab, LLCCudahy, WI
- Lakeshore Medical Clinic LLCCudahy, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Nunag among 2,078 internal medicine physician records in Wisconsin
Michael Nunag, D.O. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2008 · median 2002 among the 1,098 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 internal medicine physician records list a practice address in Cudahy
They are 6 of the 174 NPPES records with a practice address in Cudahy, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Cudahy → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Susan Felsenthal, MDCudahy, WI 531101437264512
- Armando Nunag, MDCudahy, WI 531101649385139
- Meenaxi Shah, MDCudahy, WI 531101932217155
- Javed SheikhCudahy, WI 531101790888931
- Jack Tertadian, M.D.Cudahy, WI 531101689780462
- Rajbir Dhillon, M.D.Burlington, WI 531051871615096
- Elizabeth Joseph, M.D.Burlington, WI 531051962424333
- Clifford Poplar, M.D.Delavan, WI 531151942396718
Common questions
What is Michael Nunag, D.O.'s NPI number?
Michael Nunag, D.O.'s National Provider Identifier (NPI) is 1588827729, issued on Jul 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Michael Nunag, D.O. located?
The NPPES record lists a practice address at 5900 S Lake Dr, Cudahy, WI, 53110. Phone: (414) 489-9050. Providers update this record themselves, so call before visiting.
How can I verify Michael Nunag, D.O.'s license?
NPPES lists Wisconsin license number 55981, 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 Nunag, D.O. prescribe under Medicare Part D?
In 2024, Michael Nunag, D.O. had 10,442 Medicare Part D claims for 504 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.