Jose Marcos Mariani Ostolaza
General Practice Physician · Castaner, PR
Jose Marcos Mariani Ostolaza is a general practice physician with a practice address in Castaner, Puerto Rico, and NPI 1699221515, issued on Aug 31, 2016. Check the license (Puerto Rico 19792, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jose Marcos Mariani Ostolaza
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- 19792 PR
14178-I PR
Self-reported in NPPES; status is on the state search - Practice location
- Castaner General Hospital, Castaner, PR 00601
- Phone
- (787) 829-5010
- Enumerated
- Aug 31, 2016
- Record last updated
- Apr 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Verify Jose Marcos Mariani Ostolaza 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 19792Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average general practice physician in 2024
11 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
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.
Jose Marcos Mariani Ostolaza among 4,170 general practice physician records in Puerto Rico
Jose Marcos Mariani Ostolaza is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 63% of them.
- NPI issued2016 · 63% of these records are older, 36% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 general practice physician records list a practice address in Castaner
They are 2 of the 12 NPPES records with a practice address in Castaner, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Castaner → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Sigfredo Acevedo Cruz, MDAdjuntas, PR 006011508058777
- Loriann Antommarchi Vargas, MDAdjuntas, PR 006011912928318
- Jose Colon Borrero, M.D.Adjuntas, PR 006011649350406
- Alben Cuevas Gonzalez, MDAdjuntas, PR 006011669242970
- Sigrid Perez Frontera, M.D.Adjuntas, PR 006011649277765
- Jose Perez Valentin, M.D.Adjuntas, PR 006011942206032
- Jessica Rios Santiago, M.D.Adjuntas, PR 006011538898267
- Mayra Torres Pagan, MDAdjuntas, PR 006011336125608
Common questions
What is Jose Marcos Mariani Ostolaza's NPI number?
Jose Marcos Mariani Ostolaza's National Provider Identifier (NPI) is 1699221515, issued on Aug 31, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Jose Marcos Mariani Ostolaza located?
The NPPES record lists a practice address at Castaner General Hospital, Castaner, PR, 00601. Phone: (787) 829-5010. Providers update this record themselves, so call before visiting.
How can I verify Jose Marcos Mariani Ostolaza's license?
NPPES lists Puerto Rico license number 19792, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Jose Marcos Mariani Ostolaza prescribe under Medicare Part D?
In 2024, Jose Marcos Mariani Ostolaza had 11 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.