John Williams, DO
NPI 1598744393 · Cytopathology Physician · Gulfport, FL
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Williams, DO is a Cytopathology Physician provider in Gulfport, FL (NPI 1598744393).
Provider details
- NPI number
- 1598744393
- Entity type
- Individual
- Primary specialty
- Cytopathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS4755 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
23,454 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 13,111 | $66 |
| Pathology Examination of Specimen During Surgery, Each Additional Tissue Block88332 | 4,417 | $51 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 2,932 | $95 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 1,641 | $63 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 659 | $43 |
| Pathology Examination of Specimen During Surgery, First Tissue Block88331 | 639 |
Practice location
Mailing address
Additional practice locations (1)
- 1046 Cypress Village BlvdSun City Center, FL 33573-6845Phone: (813) 633-0081Fax: (813) 633-0082
Registry dates
- Enumerated
- 2006-01-11
- Last updated
- 2020-02-20
- Certified
- 2020-02-20
Frequently asked questions
- What is John Williams's NPI number?
- John Williams's National Provider Identifier (NPI) is 1598744393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Williams's specialty?
- John Williams is listed in the NPPES registry with a primary specialty of Cytopathology Physician (Allopathic & Osteopathic Physicians).
- Where is John Williams located?
- John Williams's practice location on file with NPPES is 2821 Seabreeze Dr S, Gulfport, FL 33707-3931.
- What is John Williams's phone number?
- The practice phone number listed in the NPPES registry for John Williams is (727) 667-2074.
- Does John Williams accept Medicare?
- John Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Williams's NPI active?
- Yes — John Williams's NPI (1598744393) is active in the NPPES registry as of the last update on 2020-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.