William Vega-Ocasio, M.D.
Nephrology Physician · Cayey, PR
William Vega-Ocasio, M.D. is a nephrology physician with a practice address in Cayey, Puerto Rico, and NPI 1598750317, issued on Sep 19, 2005. Check the license (Puerto Rico 14673, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Vega-Ocasio
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 14673 PR
Self-reported in NPPES; status is on the state search - Practice location
- 4 Calle H Mendoza E, Cayey, PR 00736
- Phone
- (787) 263-6007
- Enumerated
- Sep 19, 2005
- Entity
- Type 1 · individual
Verify William Vega-Ocasio 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 14673Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
12.8 times the Medicare Part D claims of the average nephrology physician in 2024
18,769 Medicare Part D claims for 816 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Atorvastatin Calcium1,054 claims
- Jardiance826 claims
- Rosuvastatin Calcium823 claims
- Irbesartan699 claims
- Allopurinol688 claims
- Farxiga665 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.
Industry payments in 2024: $21,856.99
25 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Nephrology Physician providers in Puerto Rico
There are 152 nephrology physician records in Puerto Rico.
Other nephrology physician records in Puerto Rico
- Jumana Abuomar, M.D.Canovanas, PR1104028307
- Dionisio Acosta, MDMayaguez, PR1659724615
- Juan Adams Chahin, M.D.San Juan, PR1861019747
- Marco Albarran Portilla, MDPonce, PR1720050230
- Ricardo Alicea-Guevara, M.D.Guaynabo, PR1083027007
- Praxedes Alvarez, M.D.Ponce, PR1609837285
- Sergio Alvarez Torres, M.DAdjuntas, PR1205286077
- Krystahl Andujar-Rivera, MDCarolina, PR1902241169
- Alberto Arevalo Roig, MDArecibo, PR1598845398
- Jannice Arroyo Soto, M.DPonce, PR1710288550
Common questions
What is William Vega-Ocasio, M.D.'s NPI number?
William Vega-Ocasio, M.D.'s National Provider Identifier (NPI) is 1598750317, issued on Sep 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William Vega-Ocasio, M.D. located?
The NPPES record lists a practice address at 4 Calle H Mendoza E, Cayey, PR, 00736. Phone: (787) 263-6007. Providers update this record themselves, so call before visiting.
How can I verify William Vega-Ocasio, M.D.'s license?
NPPES lists Puerto Rico license number 14673, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does William Vega-Ocasio, M.D. prescribe under Medicare Part D?
In 2024, William Vega-Ocasio, M.D. had 18,769 Medicare Part D claims for 816 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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 27, 2026.