Quick answers
- Does Joseph C. Gretzula accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph C. Gretzula accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Joseph C. Gretzula see?
- In 2024, CMS data shows 440 Original Medicare patients and 18,203 services for Joseph C. Gretzula. This counts Original Medicare only and measures volume, not quality.
- What is Joseph C. Gretzula's NPI number?
- 1952590218. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Joseph C. Gretzula, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 440 |
|---|---|
| Services billed to Medicare | 18,203 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)6,023 services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)4,556 services
- Biopsy of related skin growth, each additional growth (11103)3,320 services
- Biopsy of related skin growth, first growth (11102)1,167 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)738 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Ischemic heart disease41%
- Diabetes27%
- Chronic kidney disease27%
Practice locations
Addresses where Joseph C. Gretzula is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 NE 6th St, Suite 106Boynton Beach, FL 33435 (561) 736‑8514
Specialties
- Dermatologyprimary
Other dermatologists in Boynton Beach
Clinicians with the same Medicare primary specialty in Boynton Beach, FL — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952590218 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians