Michael Holdsworth, M.D.
Emergency Medicine Physician · Baltimore, MD
Michael Holdsworth, M.D. is an emergency medicine physician with a practice address in Baltimore, Maryland, and NPI 1184990095, issued on Mar 25, 2012. Check the license (Maryland D83243, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Michael Holdsworth
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- D83243 MD
Self-reported in NPPES; status is on the state search - Practice location
- 110 S Paca St, Baltimore, MD 21201
- Phone
- (410) 328-8025
- Enumerated
- Mar 25, 2012
- Record last updated
- May 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (410) 328-8028
- Medicare enrollment
- Enrolled (PECOS I20240110002518); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,190 in Maryland → Look up another NPI →
Also registered at 110 S Paca St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Holdsworth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D83243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average emergency medicine physician in 2024
217 Medicare Part D claims for 139 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Prednisone27 claims
- Amoxicillin-Clavulanate Potass20 claims
- Oxycodone Hcl15 claims
- Azithromycin13 claims
- Ondansetron Odt13 claims
- Ibuprofen12 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.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncWoodbridge, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Holdsworth among 1,190 emergency medicine physician records in Maryland
Michael Holdsworth, M.D. is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 65% of them.
- NPI issued2012 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2012 · median 2010 among the 571 with a school on file
- Record last updated2021 · 58% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
505 emergency medicine physician records list a practice address in Baltimore
They are 505 of the 35,183 NPPES records with a practice address in Baltimore, and 1,190 emergency medicine physician records in Maryland.
All 1,190 in Maryland → Every provider in Baltimore → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Charles Bergman, M.D.Baltimore, MD 212011962468306
- Michael Bond, M.D.Baltimore, MD 212011184665739
- Laura Bontempo, MDBaltimore, MD 212011356330104
- Brian BrowneBaltimore, MD 212011932152790
- Rose ChasmBaltimore, MD 212011528002359
- Marcia CortBaltimore, MD 212011487698775
- Wade Gaasch, M.D.Baltimore, MD 212011407898273
- Katherine GrundmannBaltimore, MD 212011487696258
Common questions
What is Michael Holdsworth, M.D.'s NPI number?
Michael Holdsworth, M.D.'s National Provider Identifier (NPI) is 1184990095, issued on Mar 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michael Holdsworth, M.D. located?
The NPPES record lists a practice address at 110 S Paca St, Baltimore, MD, 21201. Phone: (410) 328-8025. Providers update this record themselves, so call before visiting.
How can I verify Michael Holdsworth, M.D.'s license?
NPPES lists Maryland license number D83243, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Holdsworth, M.D. prescribe under Medicare Part D?
In 2024, Michael Holdsworth, M.D. had 217 Medicare Part D claims for 139 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.