Jo Ann Santiago, MD
Internal Medicine Physician · San Juan, PR
Jo Ann Santiago, MD is an internal medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1114910346, issued on Aug 23, 2005. Check the license (Puerto Rico 13133, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jo Ann Santiago
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 13133 PR
Self-reported in NPPES; status is on the state search - Practice location
- San Rafael 1396, San Juan, PR 00910
- Phone
- (787) 725-6713
- Enumerated
- Aug 23, 2005
- Record last updated
- Jan 26, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Jo Ann Santiago 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 13133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
101 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Temazepam12 claims
- Levothyroxine Sodium11 claims
- Losartan Potassium11 claims
- Metformin Hcl11 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.
Jo Ann Santiago among 1,146 internal medicine physician records in Puerto Rico
Jo Ann Santiago, MD is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2016 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
322 internal medicine physician records list a practice address in San Juan
They are 322 of the 8,960 NPPES records with a practice address in San Juan, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in San Juan → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carlos Cardona Roldan, M.D.Santurce, PR 009101407060379
- Libertad Montanez, MDSanturce, PR 009101497725378
- Maribel Rodriguez, MDSan Juan, PR 009101205805876
- Dinamarca Rodriguez Vargas, MDSan Juan, PR 009101821079070
- Yanira Aviles-Burgos, M.D.San Juan, PR 009091538316971
- Aida Blasini, M.D.San Juan, PR 009091255331872
- Roberto Calderon, MDSan Juan, PR 009091851460166
- Gabriel Castro ColonSan Juan, PR 009091407303282
Common questions
What is Jo Ann Santiago, MD's NPI number?
Jo Ann Santiago, MD's National Provider Identifier (NPI) is 1114910346, issued on Aug 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jo Ann Santiago, MD located?
The NPPES record lists a practice address at San Rafael 1396, San Juan, PR, 00910. Phone: (787) 725-6713. Providers update this record themselves, so call before visiting.
How can I verify Jo Ann Santiago, MD's license?
NPPES lists Puerto Rico license number 13133, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Jo Ann Santiago, MD prescribe under Medicare Part D?
In 2024, Jo Ann Santiago, MD had 101 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.