Mariela Diaz, M.D.
Physical Medicine & Rehabilitation Physician · San Juan, PR
Mariela Diaz, M.D. is a physical medicine & rehabilitation physician with a practice address in San Juan, Puerto Rico, and NPI 1750673752, issued on May 9, 2011. Check the license (Puerto Rico 18955, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mariela Diaz
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- 18955 PR
Self-reported in NPPES; status is on the state search - Practice location
- 10 Calle Casia, San Juan, PR 00921
- Phone
- (787) 641-7582
- Enumerated
- May 9, 2011
- Record last updated
- Dec 10, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151112002110); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 199 in Puerto Rico → Look up another NPI →
Also registered at 10 Calle Casia
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rosemarie AcevedoRegistered Dietitian1174984306
- Brian Acevedo Fuentes, MDStudent in an Organized Health Care Education/Training Program1770422941
- Sonia Adrover, MSWClinical Social Worker1710912324
- Miguel Agosto EncarnacionPharmacy Technician1891653259
- Jose Alamo, D.M.D.General Practice Dentistry1235143322
- Karlya Alejandro, PSY.DClinical Psychologist1780956276
Verify Mariela 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 18955Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% more Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
1,301 Medicare Part D claims for 333 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 28 claims were for opioids.
Most prescribed
- Gabapentin596 claims
- Baclofen150 claims
- Lidocaine143 claims
- Diclofenac Sodium101 claims
- Pregabalin88 claims
- Methylprednisolone Acetate56 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.
Bills Medicare through one group practice
- Servicios Fisiatricos RaberSanta Isabel, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariela Diaz among 199 physical medicine & rehabilitation physician records in Puerto Rico
Mariela Diaz, M.D. is one of 199 physical medicine & rehabilitation physician records with a practice address in Puerto Rico. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 82% of them.
- NPI issued2011 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 1998 among the 126 with a school on file
- Record last updated2014 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Puerto Rico
There are 199 physical medicine & rehabilitation physician records in Puerto Rico.
All 199 in Puerto Rico → Every provider in San Juan → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Kathelynn Aviles WetherellSan Juan, PR 009211871980698
- Isabel Borras, M.D.San Juan, PR 009211063430353
- Ana Cintron, M.D.San Juan, PR 009211639104086
- Luis Gonzalez, M.D.San Juan, PR 009211881766285
- Anabel Jimenez-Figueroa, MDSan Juan, PR 009211861482457
- Carmen Lopez, MDSan Juan, PR 009211649361395
- Keryl Motta, MDSan Juan, PR 009211184732257
- Elizabeth NoriegaSan Juan, PR 009211679721971
Common questions
What is Mariela Diaz, M.D.'s NPI number?
Mariela Diaz, M.D.'s National Provider Identifier (NPI) is 1750673752, issued on May 9, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mariela Diaz, M.D. located?
The NPPES record lists a practice address at 10 Calle Casia, San Juan, PR, 00921. Phone: (787) 641-7582. Providers update this record themselves, so call before visiting.
How can I verify Mariela Diaz, M.D.'s license?
NPPES lists Puerto Rico license number 18955, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Mariela Diaz, M.D. prescribe under Medicare Part D?
In 2024, Mariela Diaz, M.D. had 1,301 Medicare Part D claims for 333 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.