John P. Williams, DO
Cytopathology Physician · Gulfport, FL
John P. Williams, DO is a cytopathology physician with a practice address in Gulfport, Florida, and NPI 1598744393, issued on Jan 11, 2006. Check the license (Florida OS4755, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- John P. Williams
- Credential
- DO
- Primary taxonomy
- Cytopathology Physician 207ZC0500X
- License number
- OS4755 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2821 Seabreeze Dr S, Gulfport, FL 33707
- Phone
- (727) 667-2074
- Enumerated
- Jan 11, 2006
- Record last updated
- Feb 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (727) 343-4716
- Medicaid ID
- 274114800 FL
- Medicare enrollment
- Enrolled (PECOS I20051003000524); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1983
- Entity
- Type 1 · individual
8 nearest cytopathology physician records → All 28 in Florida → Look up another NPI →
Verify John P. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS4755Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average cytopathology physician in 2024
11 Medicare Part D claims, against an average of 211 among the 12 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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 2 group practices
- Surgical Pathology Laboratories PAPinellas Park, FL
- West Central Gastroenterology LLPSt Petersburg, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John P. Williams among 28 cytopathology physician records in Florida
John P. Williams, DO is one of 28 cytopathology physician records with a practice address in Florida. 54% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 68% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated1983 · median 1995 among the 13 with a school on file
- Record last updated2020 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZC0500X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cytopathology Physician providers in Florida
There are 28 cytopathology physician records in Florida.
All 28 in Florida → Every provider in Gulfport → Cytopathology Physician nationwide →
The 8 cytopathology physician records with the nearest ZIP codes
- Jesse Buel, CTSaint Petersburg, FL 337041336621069
- Irwin Browarsky, M. D.Tampa, FL 336341801868278
- Kenneth Francus, MDTampa, FL 336341801957402
- Deepa Kasuganti, M.D.Tampa, FL 336341114240116
- Leslie Lopez - Calderon, MDTampa, FL 336341508005570
- Ifeanyi Nwadukwe, M.DTampa, FL 336341003260019
- Mfon Udo, MDTampa, FL 336341356500516
- Xiaoyu Ding, MDTemple Terrace, FL 336171003470998
Common questions
What is John P. Williams, DO's NPI number?
John P. Williams, DO's National Provider Identifier (NPI) is 1598744393, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John P. Williams, DO located?
The NPPES record lists a practice address at 2821 Seabreeze Dr S, Gulfport, FL, 33707. Phone: (727) 667-2074. Providers update this record themselves, so call before visiting.
How can I verify John P. Williams, DO's license?
NPPES lists Florida license number OS4755, 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 John P. Williams, DO prescribe under Medicare Part D?
In 2024, John P. Williams, DO had 11 Medicare Part D claims; the average among cytopathology physician prescribers was 211. 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.