Mark Y. Nunag, M.D.
Nephrology Physician · West Bend, WI
Mark Y. Nunag, M.D. is a nephrology physician with a practice address in West Bend, Wisconsin, and NPI 1104095017, issued on Feb 25, 2008. Check the license (Wisconsin 51858, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Mark Y. Nunag
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 51858 WI
10708-0000 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2050 Continential Drive, West Bend, WI 53095
- Phone
- (262) 306-2700
- Enumerated
- Feb 25, 2008
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (262) 306-2704
- Medicaid ID
- 35306400 WI
- Medicare enrollment
- Enrolled (PECOS I20080730000492); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 207 in Wisconsin → Look up another NPI →
Verify Mark Y. Nunag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 51858Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average nephrology physician in 2024
1,719 Medicare Part D claims for 337 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Calcitriol277 claims
- Bumetanide146 claims
- Furosemide131 claims
- Potassium Chloride83 claims
- Sevelamer Carbonate83 claims
- Amlodipine Besylate70 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: $32.84
2 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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 2 group practices
- Aurora Advanced Healthcare, Inc.Menomonee Falls, WI
- Midwest Nephrology Associates SCMilwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Y. Nunag among 207 nephrology physician records in Wisconsin
Mark Y. Nunag, M.D. is one of 207 nephrology physician records with a practice address in Wisconsin. 86% 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 55% of them.
- NPI issued2008 · 55% of these records are older, 38% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2001 · median 2004 among the 157 with a school on file
- Record last updated2021 · 51% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Wisconsin
There are 207 nephrology physician records in Wisconsin.
All 207 in Wisconsin → Every provider in West Bend → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Michael Brooks, MDSheboygan, WI 530811942358403
- Saurabh Narad, M.D.Summit, WI 530661922283910
- Pankaj Dhingra, MDFranklin, WI 531321639380926
- Ganesh Pulla, M.DKenosha, WI 531421679620918
- Rosanna Ranieri, MDKenosha, WI 531431407802002
- Stephen Blonsky, MDMuskego, WI 531501497855126
- Naveet Bal, MDNew Berlin, WI 531511578773131
- Nawras Alshoubaki, MDOak Creek, WI 531541003290586
Common questions
What is Mark Y. Nunag, M.D.'s NPI number?
Mark Y. Nunag, M.D.'s National Provider Identifier (NPI) is 1104095017, issued on Feb 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mark Y. Nunag, M.D. located?
The NPPES record lists a practice address at 2050 Continential Drive, West Bend, WI, 53095. Phone: (262) 306-2700. Providers update this record themselves, so call before visiting.
How can I verify Mark Y. Nunag, M.D.'s license?
NPPES lists Wisconsin license number 51858, 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 Mark Y. Nunag, M.D. prescribe under Medicare Part D?
In 2024, Mark Y. Nunag, M.D. had 1,719 Medicare Part D claims for 337 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.