William L. Toback, D.O.
Geriatric Medicine (Family Medicine) Physician · West Palm Beach, FL
William L. Toback, D.O. is a geriatric medicine (family medicine) physician with a practice address in West Palm Beach, Florida, and NPI 1326074246, issued on Jun 23, 2006. Check the license (Florida OS5526, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- William L. Toback
- Credential
- D.O.
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- OS5526 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1651 S Congress Ave, West Palm Beach, FL 33406
- Phone
- (561) 966-1000
- Enumerated
- Jun 23, 2006
- Record last updated
- Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (561) 432-0618
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 136 in Florida → Look up another NPI →
Also registered at 1651 S Congress Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juan Delgado, M.D.Internal Medicine Physician1649207283
- Renee Demarinis, APRNFamily Nurse Practitioner1558920041
- Maria Lara SuarezFamily Nurse Practitioner1902531395
- Jasmine Loomis, MDFamily Medicine Physician1235878901
- Adrian Romero Espinosa, MDGeneral Practice Physician1982355962
- Sandra Sanchez RomeroFamily Nurse Practitioner1821755364
Verify William L. Toback in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS5526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
178 Medicare Part D claims for 100 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate12 claims
- Losartan Potassium11 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.
William L. Toback among 136 geriatric medicine (family medicine) physician records in Florida
William L. Toback, D.O. is one of 136 geriatric medicine (family medicine) physician records with a practice address in Florida. 76% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 46% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 49% of these records are
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in Florida
There are 136 geriatric medicine (family medicine) physician records in Florida.
All 136 in Florida → Every provider in West Palm Beach → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- Dennis Stone, M.D.North Palm Beach, FL 334081922165414
- Jerome Haym, M.D.Riviera Beach, FL 334101215964655
- Martin Schnier, D.O.Belle Glade, FL 334301659320042
- Smita Deshpande, MDBoca Raton, FL 334311003806977
- Maryelizabeth Roth, M.D.Boynton Beach, FL 334351194807206
- Ivana Yero, DODelray Beach, FL 334441457093171
- Kathy Goodman, D.O.Delray Beach, FL 334451861480923
- Martha Chipi, M.D.Sunrise, FL 333511750412938
Common questions
What is William L. Toback, D.O.'s NPI number?
William L. Toback, D.O.'s National Provider Identifier (NPI) is 1326074246, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William L. Toback, D.O. located?
The NPPES record lists a practice address at 1651 S Congress Ave, West Palm Beach, FL, 33406. Phone: (561) 966-1000. Providers update this record themselves, so call before visiting.
How can I verify William L. Toback, D.O.'s license?
NPPES lists Florida license number OS5526, 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 William L. Toback, D.O. prescribe under Medicare Part D?
In 2024, William L. Toback, D.O. had 178 Medicare Part D claims for 100 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.