NPPES file of Aug 9, 2026

Mark J. Mahan, MD

Diagnostic Radiology Physician · Orlando, FL

Mark J. Mahan, MD is a diagnostic radiology physician with a practice address in Orlando, Florida, and NPI 1609863778, issued on Oct 4, 2005. Check the license (Florida ME 57707, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1609863778
Name
Mark J. Mahan
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
ME 57707 FL
036154985 IL
Self-reported in NPPES; status is on the state search
Practice location
20 W Kaley St, Orlando, FL 32806
Phone
(407) 423-2581
Enumerated
Oct 4, 2005
Record last updated
Feb 26, 2026
Fax
(407) 849-6470
Medicaid ID
64454400 FL
Medicare enrollment
Enrolled (PECOS I20230925001708); may accept 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 20 W Kaley St

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

  1. Edem Chen, MDDiagnostic Radiology Physician1053324574
  2. Allan Clayman, MDDiagnostic Radiology Physician1063409704
  3. Lawrence Colvin, MDDiagnostic Radiology Physician1568458370
  4. Justin Forcier, DNP, APRN, FNP-CNurse Practitioner1326678392
  5. Romyll Garcia, M.D.Diagnostic Radiology Physician1497072292
  6. Mary Garrett, MDDiagnostic Radiology Physician1235126970

Verify Mark J. Mahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME 57707
    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 Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 12 group practices

  1. Empire State Radiology P CSanta Fe, NM
  2. Good Samaritan Regional Health CenterMount Vernon, IL
  3. Imaging Associates OF Indiana, PCWinter Springs, FL
  4. Imaging Associates OF Michigan PLLCBoulder, CO
  5. Imaging Associates OF New Mexico LLCAlbuquerque, NM
  6. Multicare Health SystemTacoma, WA
  7. Pikeville Medical Center IncWinter Springs, FL
  8. Premier Radiology Wisconsin LLCMount Pleasant, WI
  9. Radiology Affiliates OF Central New Jersey PCWinter Springs, FL
  10. Radiology Alliance PCBoulder, CO
  11. Specialists IN Medical Imaging, SCBoulder, CO
  12. St Marys Hospital Centralia IllinoisCentralia, IL

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

Mark J. Mahan among 2,761 diagnostic radiology physician records in Florida

Mark J. Mahan, MD is one of 2,761 diagnostic radiology physician records with a practice address in Florida. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1985 · median 2002 among the 1,926 with a school on file
  • Record last updated2026 · 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 2085R0202X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Florida

There are 2,761 diagnostic radiology physician records in Florida.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Alexander Azbel, MDOrlando, FL 328061134115959
  2. Allan Clayman, MDOrlando, FL 328061063409704
  3. Lawrence Colvin, MDOrlando, FL 328061568458370
  4. Joe FranklinOrlando, FL 328061871580514
  5. Mary Garrett, MDOrlando, FL 328061235126970
  6. Joseph Jones, MDOrlando, FL 328061043207798
  7. John Murphy, MDOrlando, FL 328061336136076
  8. Vijay Patange, MDOrlando, FL 328061982690624

Common questions

What is Mark J. Mahan, MD's NPI number?

Mark J. Mahan, MD's National Provider Identifier (NPI) is 1609863778, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark J. Mahan, MD located?

The NPPES record lists a practice address at 20 W Kaley St, Orlando, FL, 32806. Phone: (407) 423-2581. Providers update this record themselves, so call before visiting.

How can I verify Mark J. Mahan, MD's license?

NPPES lists Florida license number ME 57707, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. 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. 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.