Maria Mercedes Sanchez-Longo, M.D.
Pediatrics Physician · San Juan, PR
Maria Mercedes Sanchez-Longo, M.D. is a pediatrics physician with a practice address in San Juan, Puerto Rico, and NPI 1922168632, issued on Dec 11, 2006. Check the license (Puerto Rico 8395, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Mercedes Sanchez-Longo
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 8395 PR
Self-reported in NPPES; status is on the state search - Practice location
- Hospital Auxilio Mutuo, San Juan, PR 00919
- Phone
- (787) 758-2000
- Enumerated
- Dec 11, 2006
- Record last updated
- Mar 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at Hospital Auxilio Mutuo
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlos Bachier, MDHematology (Internal Medicine) Physician1588621031
- Alexis Cruz-Chacon, MDHematology & Oncology Physician1083898969
- Siulmary De Jesus Caban, FNP-CFamily Nurse Practitioner1003780180
- Ignacio EcheniqueColon & Rectal Surgery Physician1588740542
- Joffre Gomez, MDStudent in an Organized Health Care Education/Training Program1639016116
- Olga Lliteras, MDPediatrics Physician1841346913
Verify Maria Mercedes Sanchez-Longo 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 8395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average pediatrics physician in 2024
103 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Montelukast Sodium13 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.
Industry payments in 2024: $42.64
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
230 pediatrics physician records list a practice address in San Juan
They are 230 of the 8,960 NPPES records with a practice address in San Juan, and 808 pediatrics physician records in Puerto Rico.
All 230 in San Juan → All 808 in Puerto Rico → Every provider in San Juan →
Other pediatrics physician records in Puerto Rico
- Vivian Acebal Lopez, M.D.San Juan, PR1881810091
- Carlos Acevedo, MDVega Alta, PR1558402784
- Edgar Acevedo, M.D.San Juan, PR1235332958
- Hector Acevedo, MDCaguas, PR1730159153
- Sandra Acevedo, M.D.Bayamon, PR1235358904
- Sharon AcevedoPonce, PR1669841169
- Wida Acevedo, M.D.Guaynabo, PR1669450193
- Aileen Acevedo Ruiz, MDCaguas, PR1376190546
- Midnela Acevedo-Flores, M.D.San Juan, PR1497763668
- Luis Acosta, M.D.Vega Alta, PR1366785438
Common questions
What is Maria Mercedes Sanchez-Longo, M.D.'s NPI number?
Maria Mercedes Sanchez-Longo, M.D.'s National Provider Identifier (NPI) is 1922168632, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria Mercedes Sanchez-Longo, M.D. located?
The NPPES record lists a practice address at Hospital Auxilio Mutuo, San Juan, PR, 00919. Phone: (787) 758-2000. Providers update this record themselves, so call before visiting.
How can I verify Maria Mercedes Sanchez-Longo, M.D.'s license?
NPPES lists Puerto Rico license number 8395, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Mercedes Sanchez-Longo, M.D. prescribe under Medicare Part D?
In 2024, Maria Mercedes Sanchez-Longo, M.D. had 103 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.