Mayra E. Fernandez Amarat, M.D.
General Practice Physician · Loiza, PR
Mayra E. Fernandez Amarat, M.D. is a general practice physician with a practice address in Loiza, Puerto Rico, and NPI 1861432486, issued on Jun 8, 2006. Check the license (Puerto Rico 16426, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mayra E. Fernandez Amarat
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 16426 PR
Self-reported in NPPES; status is on the state search - Practice location
- Carr 188 # Int187, Loiza, PR 00772
- Phone
- (939) 640-7983
- Enumerated
- Jun 8, 2006
- Record last updated
- Mar 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (787) 876-1120
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Also registered at Carr 188 # Int187
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yanniris Cajigas, M.D.Family Medicine Physician1538353099
- Emillie Rodriguez TrinidadStudent in an Organized Health Care Education/Training Program1154094225
- Marilyn Villalongo CabreraSocial Worker1821682089
Verify Mayra E. Fernandez Amarat 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 16426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average general practice physician in 2024
493 Medicare Part D claims for 34 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Synthroid42 claims
- Losartan Potassium34 claims
- Gabapentin28 claims
- Famotidine27 claims
- Simvastatin21 claims
- Hydrochlorothiazide18 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.
Mayra E. Fernandez Amarat among 4,170 general practice physician records in Puerto Rico
Mayra E. Fernandez Amarat, 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 updated2018 · 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).
3 general practice physician records list a practice address in Loiza
They are 3 of the 69 NPPES records with a practice address in Loiza, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Loiza → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Blanca Davila-Monero, M.D.Loiza, PR 007721972579761
- Laura Marty, M.D.Loiza, PR 007721912121518
- Steven Abreu Reyes, M.D.Las Piedras, PR 007711801146667
- Carlos Alfaro Iberico, M.D.Luquillo, PR 007731770868713
- Jose Barreras, MDLuquillo, PR 007731205051364
- Josue Benabe Carlo, M.D.Las Piedras, PR 007711003343773
- Ivonne Benabe HuertasLuquillo, PR 007731083837025
- Rosamar Caraballo Lopez, MDLuquillo, PR 007731538329164
Common questions
What is Mayra E. Fernandez Amarat, M.D.'s NPI number?
Mayra E. Fernandez Amarat, M.D.'s National Provider Identifier (NPI) is 1861432486, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mayra E. Fernandez Amarat, M.D. located?
The NPPES record lists a practice address at Carr 188 # Int187, Loiza, PR, 00772. Phone: (939) 640-7983. Providers update this record themselves, so call before visiting.
How can I verify Mayra E. Fernandez Amarat, M.D.'s license?
NPPES lists Puerto Rico license number 16426, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Mayra E. Fernandez Amarat, M.D. prescribe under Medicare Part D?
In 2024, Mayra E. Fernandez Amarat, M.D. had 493 Medicare Part D claims for 34 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.