NPPES file of Aug 9, 2026

James R. Holmberg, M.D.

Emergency Medicine Physician · Milwaukee, WI

James R. Holmberg, M.D. is an emergency medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1902889736, issued on Nov 25, 2005. Check the license (Wisconsin 29012-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902889736
Name
James R. Holmberg
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
29012-020 WI
Self-reported in NPPES; status is on the state search
Practice location
945 N 12TH St, Milwaukee, WI 53233
Phone
(414) 219-7880
Enumerated
Nov 25, 2005
Record last updated
Apr 9, 2025
Medicaid ID
31405000 WI
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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8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →

Also registered at 945 N 12TH St

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

  1. Ahmed Abdelmagid, M.D.Critical Care Medicine (Internal Medicine) Physician1144589383
  2. Mohammad Abdul AzeemNeurology Physician1295229797
  3. Ibrahim Abu-ArqoubPharmacist1033539390
  4. Stephanie Adamczyk, PAPhysician Assistant1063007441
  5. Shant Adamian, DOObstetrics & Gynecology Physician1952861668
  6. Ola AhmadStudent in an Organized Health Care Education/Training Program1629871645

Verify James R. Holmberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 29012-020    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

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James R. Holmberg among 1,464 emergency medicine physician records in Wisconsin

James R. Holmberg, 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 not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2025 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,464 in Wisconsin → Every provider in Milwaukee → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Ryan Bass, D.O.Milwaukee, WI 532331548467764
  2. Jaime Butler, MDMilwaukee, WI 532331033120126
  3. Paul Coogan, MDMilwaukee, WI 532331679526065
  4. Warren Entwistle, DOMilwaukee, WI 532331225004310
  5. Cheryl Jeanpierre, D.O.Milwaukee, WI 532331750343497
  6. Anne Johnson, M.D.Milwaukee, WI 532331235156878
  7. Ann Lagerlund, M.D.Milwaukee, WI 532331497965172
  8. Toula Lazarides, M.D.Milwaukee, WI 532331699737247

Common questions

What is James R. Holmberg, M.D.'s NPI number?

James R. Holmberg, M.D.'s National Provider Identifier (NPI) is 1902889736, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is James R. Holmberg, M.D. located?

The NPPES record lists a practice address at 945 N 12TH St, Milwaukee, WI, 53233. Phone: (414) 219-7880. Providers update this record themselves, so call before visiting.

How can I verify James R. Holmberg, M.D.'s license?

NPPES lists Wisconsin license number 29012-020, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.