Zenaida Castillo, MD
Specialist · San Juan, PR
Zenaida Castillo, MD is a specialist with a practice address in San Juan, Puerto Rico, and NPI 1760595524, issued on Aug 16, 2006. Check the license (Puerto Rico 15746, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zenaida Castillo
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 15746 PR
Self-reported in NPPES; status is on the state search - Practice location
- Camelia St #1327, San Juan, PR 00936
- Phone
- (787) 642-7357
- Enumerated
- Aug 16, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest specialist records → All 574 in Puerto Rico → Look up another NPI →
Verify Zenaida Castillo 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 15746Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average specialist in 2024
106 Medicare Part D claims for 77 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.
Most prescribed
- Ciprofloxacin Hcl20 claims
- Metronidazole16 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.
Zenaida Castillo among 574 specialist records in Puerto Rico
Zenaida Castillo, MD is one of 574 specialist records with a practice address in Puerto Rico. 54% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 37% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileNo · 26% of these records are
- Record last updated2007 · 79% 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 Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
162 specialist records list a practice address in San Juan
They are 162 of the 8,960 NPPES records with a practice address in San Juan, and 574 specialist records in Puerto Rico.
All 574 in Puerto Rico → Every provider in San Juan → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Ana Barletta, MDSan Juan, PR 009361942295266
- Lydia Beltran, MDRio Piedras, PR 009361548223308
- Ana Bermudez, MDSan Juan, PR 009361083608590
- Ada Diaz Rodriguez, MDSan Juan, PR 009361447245824
- Irma Febo, M.D.San Juan, PR 009361285661769
- Luis Jimenez Berroa, MDSan Juan, PR 009361437142403
- Maria Molina, MDSan Juan, PR 009361033104401
- Gisela Negrin Garcia, MDSan Juan, PR 009361023003498
Common questions
What is Zenaida Castillo, MD's NPI number?
Zenaida Castillo, MD's National Provider Identifier (NPI) is 1760595524, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Zenaida Castillo, MD located?
The NPPES record lists a practice address at Camelia St #1327, San Juan, PR, 00936. Phone: (787) 642-7357. Providers update this record themselves, so call before visiting.
How can I verify Zenaida Castillo, MD's license?
NPPES lists Puerto Rico license number 15746, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Zenaida Castillo, MD prescribe under Medicare Part D?
In 2024, Zenaida Castillo, MD had 106 Medicare Part D claims for 77 beneficiaries; the average among specialist prescribers was 1,380. 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.