Efrain Fernando Ortiz Diaz, M.D.
General Practice Physician · Toa Baja, PR
Efrain Fernando Ortiz Diaz, M.D. is a general practice physician with a practice address in Toa Baja, Puerto Rico, and NPI 1194751040, issued on Jun 23, 2006. Check the license (Puerto Rico 14513, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Efrain Fernando Ortiz Diaz
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 14513 PR
Self-reported in NPPES; status is on the state search - Practice location
- Camino Del Mar Via Caracol St. #2020, Toa Baja, PR 00949
- Phone
- (787) 637-4416
- Enumerated
- Jun 23, 2006
- Record last updated
- Mar 22, 2025
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Verify Efrain Fernando Ortiz Diaz 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 14513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% more Medicare Part D claims than the average general practice physician in 2024
4,841 Medicare Part D claims for 246 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium313 claims
- Synthroid231 claims
- Losartan Potassium206 claims
- Gabapentin195 claims
- Famotidine147 claims
- Simvastatin141 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.
Efrain Fernando Ortiz Diaz among 4,170 general practice physician records in Puerto Rico
Efrain Fernando Ortiz Diaz, M.D. 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 65% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 29% of these records are
- Record last updated2025 · 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).
61 general practice physician records list a practice address in Toa Baja
They are 61 of the 446 NPPES records with a practice address in Toa Baja, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Toa Baja → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Nildaliz Andrews, M.D.Toa Baja, PR 009491528018124
- Maria Berrios, M.D.Toa Baja, PR 009491730109356
- Samuel Escobar, MDToa Baja, PR 009491538143136
- Jose Garcia, MDToa Baja, PR 009491447250089
- William Grassette Melendez, MDToa Baja, PR 009491972515856
- Santiago Joaquin, MDToa Baja, PR 009491568459758
- Jorge Ortiz Ramos, MDToa Baja, PR 009491326037359
- Miguel Ortiz-Diaz, M.D.Toa Baja, PR 009491295757417
Common questions
What is Efrain Fernando Ortiz Diaz, M.D.'s NPI number?
Efrain Fernando Ortiz Diaz, M.D.'s National Provider Identifier (NPI) is 1194751040, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Efrain Fernando Ortiz Diaz, M.D. located?
The NPPES record lists a practice address at Camino Del Mar Via Caracol St. #2020, Toa Baja, PR, 00949. Phone: (787) 637-4416. Providers update this record themselves, so call before visiting.
How can I verify Efrain Fernando Ortiz Diaz, M.D.'s license?
NPPES lists Puerto Rico license number 14513, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Efrain Fernando Ortiz Diaz, M.D. prescribe under Medicare Part D?
In 2024, Efrain Fernando Ortiz Diaz, M.D. had 4,841 Medicare Part D claims for 246 beneficiaries; 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.