Margaret Etta Holmes, MD
Internal Medicine Physician · Milwaukee, WI
Margaret Etta Holmes, MD is an internal medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1427071901, issued on Jul 25, 2006. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Margaret Etta Holmes
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 5000 W National Ave, Milwaukee, WI 53295
- Phone
- (414) 384-2000
- Enumerated
- Jul 25, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (414) 389-4185
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 5000 W National Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Etta Holmes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
300 Medicare Part D claims for 15 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium28 claims
- Tamsulosin Hcl25 claims
- Amlodipine Besylate18 claims
- Losartan Potassium16 claims
- Gabapentin15 claims
- Levothyroxine Sodium15 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.
Margaret Etta Holmes among 2,078 internal medicine physician records in Wisconsin
Margaret Etta Holmes, 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 fileNo · 53% of these records are
- Record last updated2007 · 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).
382 internal medicine physician records list a practice address in Milwaukee
They are 382 of the 18,389 NPPES records with a practice address in Milwaukee, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Milwaukee → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Alexanian, M.D.Milwaukee, WI 532951700800505
- Michael Bonner, M.D.Milwaukee, WI 532951619911195
- Kumkum Chattopadhyay, M.D.Milwaukee, WI 532951275564536
- Michael Erdmann, MDMilwaukee, WI 532951609894443
- Virginia Gennis, M.D.Milwaukee, WI 532951649292533
- Avery Hayes, M.D.Milwaukee, WI 532951033133418
- Jeffrey Jackson, MDMilwaukee, WI 532951659432607
- Gail Kallas, MDMilwaukee, WI 532951609894666
Common questions
What is Margaret Etta Holmes, MD's NPI number?
Margaret Etta Holmes, MD's National Provider Identifier (NPI) is 1427071901, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Etta Holmes, MD located?
The NPPES record lists a practice address at 5000 W National Ave, Milwaukee, WI, 53295. Phone: (414) 384-2000. Providers update this record themselves, so call before visiting.
How can I verify Margaret Etta Holmes, MD's license?
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 Margaret Etta Holmes, MD prescribe under Medicare Part D?
In 2024, Margaret Etta Holmes, MD had 300 Medicare Part D claims for 15 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.