Jolanta B. Mroz, MD
Internal Medicine Physician · Minocqua, WI
Jolanta B. Mroz, MD is an internal medicine physician with a practice address in Minocqua, Wisconsin, and NPI 1942301726, issued on Sep 26, 2006. Check the license (Wisconsin 38490, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jolanta B. Mroz
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 38490 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9576 Hwy 70, Minocqua, WI 54548
- Phone
- (715) 358-1000
- Enumerated
- Sep 26, 2006
- Record last updated
- Aug 22, 2023
- Medicaid ID
- 32302900 WI
- Medicare enrollment
- Enrolled (PECOS I20100618000762); 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 9576 Hwy 70
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jolanta B. Mroz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 38490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average internal medicine physician in 2024
11,829 Medicare Part D claims for 913 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 256 claims were for opioids.
Most prescribed
- Atorvastatin Calcium813 claims
- Levothyroxine Sodium570 claims
- Lisinopril425 claims
- Amlodipine Besylate404 claims
- Metoprolol Succinate369 claims
- Omeprazole329 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Woodruff, WI
- Mchs Hospitals IncMinocqua, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jolanta B. Mroz among 2,078 internal medicine physician records in Wisconsin
Jolanta B. Mroz, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1985 · median 2002 among the 1,098 with a school on file
- Record last updated2023 · 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).
10 internal medicine physician records list a practice address in Minocqua
They are 10 of the 218 NPPES records with a practice address in Minocqua, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Minocqua → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Charles Bettag, MDMinocqua, WI 545481881199750
- Matthew Drewry, MDMinocqua, WI 545481578645727
- Richard Fossen, MDMinocqua, WI 545481104927896
- Thomas Gabert, MDMinocqua, WI 545481184652224
- Tomasz Goral, MDMinocqua, WI 545481104923390
- David Jolin, MDMinocqua, WI 545481558473728
- Kevin Laurence, MDMinocqua, WI 545481649353046
- John Nemcek, MDMinocqua, WI 545481114024304
Common questions
What is Jolanta B. Mroz, MD's NPI number?
Jolanta B. Mroz, MD's National Provider Identifier (NPI) is 1942301726, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jolanta B. Mroz, MD located?
The NPPES record lists a practice address at 9576 Hwy 70, Minocqua, WI, 54548. Phone: (715) 358-1000. Providers update this record themselves, so call before visiting.
How can I verify Jolanta B. Mroz, MD's license?
NPPES lists Wisconsin license number 38490, 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 Jolanta B. Mroz, MD prescribe under Medicare Part D?
In 2024, Jolanta B. Mroz, MD had 11,829 Medicare Part D claims for 913 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jolanta B. Mroz, MD's MIPS final score?
The 2023 MIPS final score is 78.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.