William Schaaf, M.D.
William Schaaf, M.D. is a Pediatric Radiology Physician in Saint Petersburg, FL, registered under NPI 1003074352. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Saint Petersburg, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 301 ft away. There is EV charging 0.31 mi from the office (J1772 Charger) — useful if you are driving in from out of town. The nearest transit stop is 536 ft away, served by 4th Street South & 8th Avenue South. A pharmacy sits 0.38 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Parking 163 ft ~1 min
Parking 208 ft ~1 min
Parking 301 ft ~2 min
Restaurant The Library 390 ft ~2 min
Transit 4th Street South & Mound Park Avenue South 429 ft ~2 min
Transit 4th Street South & 7th Avenue South 491 ft ~2 min
Transit 4th Street South & 8th Avenue South 536 ft ~3 min
EV charging J1772 Charger 0.31 mi ~7 min
Coffee The Campus Grind 0.32 mi ~7 min
Pharmacy CVS Pharmacy 0.38 mi ~8 min
Restaurant Bento 0.39 mi ~8 min
3rd Street South, Saint Petersburg
Restaurant Hangar Restaurant and Flight Lounge 0.41 mi ~9 min
540 1st Street Southeast, Saint Petersburg 33701
Hotel Hilton Saint Petersburg Bayfront 0.44 mi ~9 min
333 1st Street Southeast, Saint Petersburg 33701
Coffee First Street Coffee 0.46 mi ~10 min
Convenience Palm Bay Food Mart 0.47 mi ~10 min
3rd Avenue South, Saint Petersburg
Hotel Palm Bay Hotel 0.47 mi ~10 min
711 3rd Avenue South, Saint Petersburg
Grocery Publix 0.48 mi ~10 min
250 3rd Street South, Saint Petersburg 33701
Mo-Su 07:00-22:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 35091450 | OH | Diagnostic Radiology Physician |
| ME 104296 | FL | Diagnostic Radiology Physician |
| ME104296 | FL | Pediatric Radiology Physician primary |
Licences are recorded in 2 states: OH, FL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Diagnostic Radiology
- PAC ID
- 9032394648
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Florida | I20110426000175 | Practitioner - Diagnostic Radiology |
| Maryland | I20230606001675 | Practitioner - Diagnostic Radiology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Diagnostic Radiology. There are 2 separate enrolment records across 2 states (FL, MD). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Florida and Ohio. The practice address on file is in Saint Petersburg, FL, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- ME 104296
- Specialty
- Diagnostic Radiology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Pediatric Radiology covers
A radiologist who is proficient in all forms of diagnostic imaging as it pertains to the treatment of diseases in the newborn, infant, child and adolescent. This specialist has knowledge of both imaging and interventional procedures related to the care and management of diseases of children. A pediatric radiologist must be highly knowledgeable of all organ systems as they relate to growth and development, congenital malformations, diseases peculiar to infants and children and diseases that begin in childhood but cause substantial residual impairment in adulthood. NUCC Health Care Provider Taxonomy, code 2085P0229X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician Diagnostic Radiology | 35091450 | OH | |
| 2085R0202X | Diagnostic Radiology Physician Diagnostic Radiology | ME 104296 | FL | |
| 2085P0229X | Pediatric Radiology Physician Pediatric Radiology | ME104296 | FL | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003074352 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 22, 2008 |
| Last updated | Aug 6, 2012 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
501 6TH AVE S DEPARTMENT OF RADIOLOGY Saint Petersburg, FL 33701 (727) 767-3318 |
| Mailing address |
601 5TH ST S 5TH FLOOR; DEPT. 6941 Saint Petersburg, FL 33701 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 7 | 4 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 7 | 8 | 3 | 1 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.