Nathaniel P. Brown, M.D.
Emergency Medicine Physician · Milwaukee, WI
Nathaniel P. Brown, M.D. is an emergency medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1912297185, issued on Apr 8, 2011. Check the license (Wisconsin 57507-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Nathaniel P. Brown
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 57507-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 111 E Wisconsin Ave, Milwaukee, WI 53202
- Phone
- (414) 290-6720
- Enumerated
- Apr 8, 2011
- Record last updated
- Jun 7, 2022
- Fax
- (414) 290-6755
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at 111 E Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manish Acharya, M.D.Emergency Medicine Physician1437129715
- Ayobami Adelayi, CRNACertified Registered Nurse Anesthetist1477926202
- Hector Aguilera, M.D.Emergency Medicine Physician1174593487
- Glenn Aldinger, M.D.Emergency Medicine Physician1639138381
- Adam Ankrum, D.O.Emergency Medicine Physician1003875303
- Toni Anschutz, N.P.Nurse Practitioner1558511253
Verify Nathaniel P. Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 57507-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average emergency medicine physician in 2024
206 Medicare Part D claims for 129 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 19 claims were for opioids.
Most prescribed
- Ondansetron Odt26 claims
- Hydrocodone-Acetaminophen16 claims
- Prednisone13 claims
- Sulfamethoxazole-Trimethoprim12 claims
- Cephalexin11 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): 95 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).
Nathaniel P. Brown among 1,464 emergency medicine physician records in Wisconsin
Nathaniel P. Brown, M.D. is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 58% of them.
- NPI issued2011 · 58% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
358 emergency medicine physician records list a practice address in Milwaukee
They are 358 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Milwaukee → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Manish Acharya, M.D.Milwaukee, WI 532021437129715
- Hector Aguilera, M.D.Milwaukee, WI 532021174593487
- Glenn Aldinger, M.D.Milwaukee, WI 532021639138381
- Adam Ankrum, D.O.Milwaukee, WI 532021003875303
- Jennifer Augustine, M.D.Milwaukee, WI 532021295795904
- Margaret Barron, M.D.Milwaukee, WI 532021831159482
- Stephanie Boyer, M.D.Milwaukee, WI 532021124081765
- Nathaniel Brackett, M.D.Milwaukee, WI 532021457314429
Common questions
What is Nathaniel P. Brown, M.D.'s NPI number?
Nathaniel P. Brown, M.D.'s National Provider Identifier (NPI) is 1912297185, issued on Apr 8, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel P. Brown, M.D. located?
The NPPES record lists a practice address at 111 E Wisconsin Ave, Milwaukee, WI, 53202. Phone: (414) 290-6720. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel P. Brown, M.D.'s license?
NPPES lists Wisconsin license number 57507-20, 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 Nathaniel P. Brown, M.D. prescribe under Medicare Part D?
In 2024, Nathaniel P. Brown, M.D. had 206 Medicare Part D claims for 129 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Nathaniel P. Brown, M.D.'s MIPS final score?
The 2023 MIPS final score is 95 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.