NPPES file of Aug 9, 2026

Donald Mark Demke, M.D.

Internal Medicine Physician · Orlando, FL

Donald Mark Demke, M.D. is an internal medicine physician with a practice address in Orlando, Florida, and NPI 1275068975, issued on May 1, 2017. Check the license on the Florida health license search; 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
1275068975
Name
Donald Mark Demke
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301048057 MI
Self-reported in NPPES; status is on the state search
Practice location
11579 Acosta Ave, Orlando, FL 32836
Phone
(407) 217-5127
Enumerated
May 1, 2017
Record last updated
May 1, 2017 (not updated in 9 years: call before relying on the address or phone)
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 internal medicine physician records → All 10,151 in Florida → Look up another NPI →

Verify Donald Mark Demke in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license searchCheck 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

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100% fewer Medicare Part D claims than the average internal medicine physician in 2024

13 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Donald Demke13
  2. Specialty average3,176

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.

Donald Mark Demke among 10,151 internal medicine physician records in Florida

Donald Mark Demke, M.D. is one of 10,151 internal medicine physician records with a practice address in Florida. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 76% of them.

  • NPI issued2017 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2017 · 48% 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 Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

534 internal medicine physician records list a practice address in Orlando

They are 534 of the 25,426 NPPES records with a practice address in Orlando, and 10,151 internal medicine physician records in Florida.

All 10,151 in Florida → Every provider in Orlando → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Muhammad Bhutta, MDOrlando, FL 328361871650192
  2. Ram Reddy, M.D.Orlando, FL 328361083666762
  3. Barbara Aggarwal, MDOrlando, FL 328351366883787
  4. Anil Aggarwal, MDOrlando, FL 328351407174899
  5. Maqsud Ahmed, M.D.Orlando, FL 328371831156793
  6. Ravi Akella, M.D.Orlando, FL 328351568405272
  7. Olga Aleksandrova, MDOrlando, FL 328351154740553
  8. Danielle Alhemovich, DOOrlando, FL 328351831552611

Common questions

What is Donald Mark Demke, M.D.'s NPI number?

Donald Mark Demke, M.D.'s National Provider Identifier (NPI) is 1275068975, issued on May 1, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Donald Mark Demke, M.D. located?

The NPPES record lists a practice address at 11579 Acosta Ave, Orlando, FL, 32836. Phone: (407) 217-5127. Providers update this record themselves, so call before visiting.

How can I verify Donald Mark Demke, M.D.'s license?

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.

How much does Donald Mark Demke, M.D. prescribe under Medicare Part D?

In 2024, Donald Mark Demke, M.D. had 13 Medicare Part D claims; 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.

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.