William Santiago Butler, M.D.,
Otolaryngology Physician · Ponce, PR
William Santiago Butler, M.D., is an otolaryngology physician with a practice address in Ponce, Puerto Rico, and NPI 1093745614, issued on Jul 3, 2006. Check the license (Puerto Rico 7603, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Santiago Butler
- Credential
- M.D.,
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 7603 PR
Self-reported in NPPES; status is on the state search - Practice location
- Cond Las Americas, Ponce, PR 00717
- Phone
- (787) 848-4743
- Enumerated
- Jul 3, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (787) 848-4744
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 53 in Puerto Rico → Look up another NPI →
Also registered at Cond Las Americas
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Santiago Butler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 7603Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average otolaryngology physician in 2024
31 Medicare Part D claims, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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 Santiago Butler among 53 otolaryngology physician records in Puerto Rico
William Santiago Butler, M.D., is one of 53 otolaryngology physician records with a practice address in Puerto Rico. 92% 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 28% of them.
- NPI issued2006 · 28% of these records are older, 42% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Puerto Rico
There are 53 otolaryngology physician records in Puerto Rico.
All 53 in Puerto Rico → Every provider in Ponce → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Mario Corona Ruiz, MDPonce, PR 007171306247812
- Pedro Vendrell Martin, MD- ENT HNSPonce, PR 007171467562538
- Michael Arruza Elias, MDCaguas, PR 007251861473837
- Luis Tarrats, M.D.,J.D.Cayey, PR 007361124314943
- Miguel Vega-Maldonado, M.D.Cayey, PR 007361083691430
- Jose Otero Garcia, M.D.Fajardo, PR 007381407851959
- Gustavo Almodovar-Mercado, M.D.Mayaguez, PR 006801447480918
- Carlos Cedo Alzamora, MDMayaguez, PR 006801497747828
Common questions
What is William Santiago Butler, M.D.,'s NPI number?
William Santiago Butler, M.D.,'s National Provider Identifier (NPI) is 1093745614, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Santiago Butler, M.D., located?
The NPPES record lists a practice address at Cond Las Americas, Ponce, PR, 00717. Phone: (787) 848-4743. Providers update this record themselves, so call before visiting.
How can I verify William Santiago Butler, M.D.,'s license?
NPPES lists Puerto Rico license number 7603, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does William Santiago Butler, M.D., prescribe under Medicare Part D?
In 2024, William Santiago Butler, M.D., had 31 Medicare Part D claims; the average among otolaryngology physician prescribers was 541. 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.