William Daniel Siesel, PT
Specialist · Saint Petersburg, FL
William Daniel Siesel, PT is a specialist with a practice address in Saint Petersburg, Florida, and NPI 1124404918, issued on Aug 4, 2015. Check the license (Florida PT30370, as entered in NPPES) on the Florida health license search; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Daniel Siesel
- Credential
- PT
- Primary taxonomy
- Specialist 174400000X
- License number
- PT30370 FL
Self-reported in NPPES; status is on the state search - Practice location
- 419 Pasadena Ave S, Saint Petersburg, FL 33707
- Phone
- (727) 384-4600
- Enumerated
- Aug 4, 2015
- Record last updated
- Aug 4, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (727) 384-4601
- Entity
- Type 1 · individual
8 nearest specialist records → All 2,685 in Florida → Look up another NPI →
Also registered at 419 Pasadena Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kellie Massie-Osborne, P.T.Specialist1073684080
Verify William Daniel Siesel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license PT30370Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Daniel Siesel among 2,685 specialist records in Florida
William Daniel Siesel, PT is one of 2,685 specialist records with a practice address in Florida. 29% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2015, is newer than 90% of them.
- NPI issued2015 · 90% of these records are older, 7% newer
- In a Medicare fileNo · 29% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2015 · 85% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Florida
There are 2,685 specialist records in Florida. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,685 in Florida → Every provider in Saint Petersburg → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Linda Demaio, L.M.T., C.F.T.St Petersburg, FL 337071356557144
- Virginia Garcia, M. D.St Petersburg, FL 337071619076098
- Kellie Massie-Osborne, P.T.Saint Petersburg, FL 337071073684080
- Kimberly Mularoni, MDSt Petersburg, FL 337071770573073
- John Slosburg, M.D.South Pasadena, FL 337071093710311
- Tara Hills, L.M.T.St Pete Beach, FL 337061801952650
- Ramona Arias, M.D.St Petersburg, FL 337091154392801
- Clacci HarmonSaint Petersburg, FL 337051497410047
Common questions
What is William Daniel Siesel, PT's NPI number?
William Daniel Siesel, PT's National Provider Identifier (NPI) is 1124404918, issued on Aug 4, 2015. An NPI identifies a provider in billing; it is not a license.
Where is William Daniel Siesel, PT located?
The NPPES record lists a practice address at 419 Pasadena Ave S, Saint Petersburg, FL, 33707. Phone: (727) 384-4600. Providers update this record themselves, so call before visiting.
How can I verify William Daniel Siesel, PT's license?
NPPES lists Florida license number PT30370, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.