NPPES file of Aug 9, 2026

Mark Joseph Knapp, MD

Internal Medicine Physician · Lecanto, FL

Mark Joseph Knapp, MD is an internal medicine physician with a practice address in Lecanto, Florida, and NPI 1083711089, issued on Sep 20, 2006. Check the license (Florida 49493, 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
1083711089
Name
Mark Joseph Knapp
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
49493 FL
Self-reported in NPPES; status is on the state search
Practice location
2804 W Marc Knighton CT, Lecanto, FL 34461
Phone
(352) 726-8000
Enumerated
Sep 20, 2006
Record last updated
Jul 9, 2007 (not updated in 19 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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Also registered at 2804 W Marc Knighton CT

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

  1. Marta Babol, M.D.Internal Medicine Physician1033221304
  2. Ellen BaxleyRegistered Dietitian1396992558
  3. Carmen Besselli, LCSWClinical Social Worker1730299207
  4. Krisha Fulcher, PSY.D.Clinical Psychologist1740474568
  5. Shyamala Ganti, MDInternal Medicine Physician1841211661
  6. Robert Grabowski, MDFamily Medicine Physician1447365242

Verify Mark Joseph Knapp in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license 49493
    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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100% fewer Medicare Part D claims than the average internal medicine physician in 2024

15 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mark Knapp15
  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.

Mark Joseph Knapp among 10,151 internal medicine physician records in Florida

Mark Joseph Knapp, MD 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 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 55% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2007 · 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).

12 internal medicine physician records list a practice address in Lecanto

They are 12 of the 260 NPPES records with a practice address in Lecanto, and 10,151 internal medicine physician records in Florida.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marta Babol, M.D.Lecanto, FL 344611033221304
  2. German Baldeon, MDLecanto, FL 344611891726741
  3. Myriam Cruz-Calderon,, MDLecanto, FL 344611053379271
  4. Shyamala Ganti, MDLecanto, FL 344611841211661
  5. Agron Ismaili, MDLecanto, FL 344611922093707
  6. Glorimar Nazario-Vidal, M.D.Lecanto, FL 344611194821611
  7. Smita Padala, M.D.Lecanto, FL 344611790942555
  8. Dacelin St Martin, MDLecanto, FL 344611457392136

Common questions

What is Mark Joseph Knapp, MD's NPI number?

Mark Joseph Knapp, MD's National Provider Identifier (NPI) is 1083711089, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Joseph Knapp, MD located?

The NPPES record lists a practice address at 2804 W Marc Knighton CT, Lecanto, FL, 34461. Phone: (352) 726-8000. Providers update this record themselves, so call before visiting.

How can I verify Mark Joseph Knapp, MD's license?

NPPES lists Florida license number 49493, 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 Mark Joseph Knapp, MD prescribe under Medicare Part D?

In 2024, Mark Joseph Knapp, MD had 15 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.

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.