NPPES file of Aug 9, 2026

Stephen Daniel Mayper, M.D.

Internal Medicine Physician · Largo, FL

Stephen Daniel Mayper, M.D. is an internal medicine physician with a practice address in Largo, Florida, and NPI 1598150518, issued on Apr 6, 2015. Check the license (Florida ME140774, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598150518
Name
Stephen Daniel Mayper
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
ME140774 FL
Self-reported in NPPES; status is on the state search
Practice location
8839 Bryan Dairy RD Ste 200, Largo, FL 33777
Phone
(727) 391-5650
Enumerated
Apr 6, 2015
Record last updated
Jul 25, 2022
Fax
(813) 635-7939
Medicaid ID
103661800 FL
Medicare enrollment
Enrolled (PECOS I20190829000400); accepts Medicare assignment
Medical or professional school
University Of South Florida College Of Medicine, 2015
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 8839 Bryan Dairy RD Ste 200

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

  1. Kristin O'Donnell, APRN-CNurse Practitioner1437678695

Verify Stephen Daniel Mayper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME140774
    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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69% more Medicare Part D claims than the average internal medicine physician in 2024

5,359 Medicare Part D claims for 466 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 155 claims were for opioids.

  1. Stephen Mayper5,359
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium323 claims
  2. Atorvastatin Calcium262 claims
  3. Lisinopril204 claims
  4. Rosuvastatin Calcium202 claims
  5. Alprazolam170 claims
  6. Amlodipine Besylate164 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.

Industry payments in 2024: $175.92

9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Mayper$175.92
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Baycare Medical Group, Inc.Clearwater, FL
  2. Legacy Healthcare Services IncTampa, FL
  3. St. Joseph's Hospital, Inc.Tampa, FL

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

Stephen Daniel Mayper among 10,151 internal medicine physician records in Florida

Stephen Daniel Mayper, 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 2015, is newer than 71% of them.

  • NPI issued2015 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2015 · median 2004 among the 6,606 with a school on file
  • Record last updated2022 · 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).

96 internal medicine physician records list a practice address in Largo

They are 96 of the 2,280 NPPES records with a practice address in Largo, and 10,151 internal medicine physician records in Florida.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Laura Arline, MDLargo, FL 337771306899018
  2. Jay Azneer, DOLargo, FL 337771568460780
  3. Suketu Desai, MDLargo, FL 337771659332070
  4. Carmela Farulla, MDLargo, FL 337771639108616
  5. Julie Fogarty, M.D.Largo, FL 337771003920521
  6. Anit Garg, M.D.Largo, FL 337771750358990
  7. Michele Jorgenson, MDLargo, FL 337771881647022
  8. Eduardo Martinez, MDLargo, FL 337771417955337

Common questions

What is Stephen Daniel Mayper, M.D.'s NPI number?

Stephen Daniel Mayper, M.D.'s National Provider Identifier (NPI) is 1598150518, issued on Apr 6, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Daniel Mayper, M.D. located?

The NPPES record lists a practice address at 8839 Bryan Dairy RD Ste 200, Largo, FL, 33777. Phone: (727) 391-5650. Providers update this record themselves, so call before visiting.

How can I verify Stephen Daniel Mayper, M.D.'s license?

NPPES lists Florida license number ME140774, 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.

How much does Stephen Daniel Mayper, M.D. prescribe under Medicare Part D?

In 2024, Stephen Daniel Mayper, M.D. had 5,359 Medicare Part D claims for 466 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.