NPPES file of Aug 9, 2026

Michael Dennis Joyce, MD

Emergency Medicine Physician · Cambridge, MD

Michael Dennis Joyce, MD is an emergency medicine physician with a practice address in Cambridge, Maryland, and NPI 1164460333, issued on Jun 2, 2006. Check the license (Maryland D0031730, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164460333
Name
Michael Dennis Joyce
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
D0031730 MD
Self-reported in NPPES; status is on the state search
Practice location
300 Byrn St, Cambridge, MD 21613
Phone
(410) 228-5511
Enumerated
Jun 2, 2006
Record last updated
Mar 7, 2023
Fax
(410) 228-1061
Medicare enrollment
Enrolled (PECOS I20150717000949); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 Byrn St

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

  1. Eric Anderson, M.D.Psychiatry Physician1588642599
  2. Stephen Andrews, N.P.Acute Care Nurse Practitioner1326106121
  3. Fred Bailor, DOEmergency Medicine Physician1689628059
  4. Frederick Bauer, MDEmergency Medical Services (Emergency Medicine) Physician1164435830
  5. Jeffrey Beck, DOEmergency Medicine Physician1386691392
  6. Jeff Biele, LCPCMental Health Counselor1821450768

Verify Michael Dennis Joyce in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0031730
    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 Maryland license search

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63% fewer Medicare Part D claims than the average emergency medicine physician in 2024

84 Medicare Part D claims for 69 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Michael Joyce84
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen23 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

  1. Emergency Medicine Professionals PADeland, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Dennis Joyce among 1,190 emergency medicine physician records in Maryland

Michael Dennis Joyce, MD 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 59% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1982 · median 2010 among the 571 with a school on file
  • Record last updated2023 · 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).

11 emergency medicine physician records list a practice address in Cambridge

They are 11 of the 333 NPPES records with a practice address in Cambridge, and 1,190 emergency medicine physician records in Maryland.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Fred Bailor, DOCambridge, MD 216131689628059
  2. Jeffrey Beck, DOCambridge, MD 216131386691392
  3. Thomas Chiccone, MDCambridge, MD 216131639123151
  4. Frank Ciocci, MDCambridge, MD 216131659325140
  5. Mark Deguzman, MDCambridge, MD 216131437170115
  6. Christine Galan, MDCambridge, MD 216131639123086
  7. Fernando Reachy Guadarrama, MDCambridge, MD 216131689256620
  8. Cynthia Shen, MDCambridge, MD 216131700830908

Common questions

What is Michael Dennis Joyce, MD's NPI number?

Michael Dennis Joyce, MD's National Provider Identifier (NPI) is 1164460333, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Dennis Joyce, MD located?

The NPPES record lists a practice address at 300 Byrn St, Cambridge, MD, 21613. Phone: (410) 228-5511. Providers update this record themselves, so call before visiting.

How can I verify Michael Dennis Joyce, MD's license?

NPPES lists Maryland license number D0031730, 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 Dennis Joyce, MD prescribe under Medicare Part D?

In 2024, Michael Dennis Joyce, MD had 84 Medicare Part D claims for 69 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.