Juan Castaner, M.D.
Maternal & Fetal Medicine Physician · San Juan, PR
Juan Castaner, M.D. is a maternal & fetal medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1669477642, issued on Jun 16, 2005. Check the license (Puerto Rico 11250, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Juan Castaner
- Credential
- M.D.
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- 11250 PR
Self-reported in NPPES; status is on the state search - Practice location
- 29 Washington Street, San Juan, PR 00907
- Phone
- (787) 725-6750
- Enumerated
- Jun 16, 2005
- Entity
- Type 1 · individual
Also registered at 29 Washington Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yaiza Martinez-Ortiz, MDGastroenterology Physician1134413701
- Diana Noya Mangual, M.D.Obstetrics & Gynecology Physician1710185905
- Graciela Rivera Castro, MDGynecology Physician1033666813
- Angel Rodriguez Rivera, M.D,Surgery Physician1134419161
Verify Juan Castaner 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 11250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
35% more Medicare Part D claims than the average maternal & fetal medicine physician in 2024
109 Medicare Part D claims for 38 beneficiaries, against an average of 81 among the 268 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol23 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: $161.44
4 payments, mostly food and beverage; the largest payer was Hologic Sales and Service, LLC. The 525 providers of this specialty with any payment received $1,332.34 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.
Maternal & Fetal Medicine Physician providers in Puerto Rico
There are 6 maternal & fetal medicine physician records in Puerto Rico.
Other maternal & fetal medicine physician records in Puerto Rico
- Juan Garcia, MDToa Baja, PR1164581344
- Lauren Lynch, MDSan Juan, PR1487630646
- Edilberto Martinez, MDBayamon, PR1073594404
- Annette Perez-Delboy, M.D.San Juan, PR1528097615
- William Ramirez-Cacho, M.D.Dorado, PR1194868869
Common questions
What is Juan Castaner, M.D.'s NPI number?
Juan Castaner, M.D.'s National Provider Identifier (NPI) is 1669477642, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Juan Castaner, M.D. located?
The NPPES record lists a practice address at 29 Washington Street, San Juan, PR, 00907. Phone: (787) 725-6750. Providers update this record themselves, so call before visiting.
How can I verify Juan Castaner, M.D.'s license?
NPPES lists Puerto Rico license number 11250, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Juan Castaner, M.D. prescribe under Medicare Part D?
In 2024, Juan Castaner, M.D. had 109 Medicare Part D claims for 38 beneficiaries; the average among maternal & fetal medicine physician prescribers was 81. 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.