Luis M. Mercado, MD
Internal Medicine Physician · San German, PR
Luis M. Mercado, MD is an internal medicine physician with a practice address in San German, Puerto Rico, and NPI 1144227869, issued on Jul 7, 2005. Check the license (Puerto Rico 11063, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Luis M. Mercado
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 11063 PR
Self-reported in NPPES; status is on the state search - Practice location
- Ave. Interamericana #153, San German, PR 00683
- Phone
- (787) 892-4357
- Enumerated
- Jul 7, 2005
- Record last updated
- Apr 24, 2026
- Fax
- (787) 659-7120
- Medicare enrollment
- Enrolled (PECOS I20110124000968); accepts Medicare assignment
- Medical or professional school
- University Central Del Caribe Escuela De Medicina, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Luis M. Mercado 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 11063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,574 Medicare Part D claims for 382 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 26 claims were for opioids.
Most prescribed
- Levothyroxine Sodium515 claims
- Losartan Potassium320 claims
- Gabapentin258 claims
- Alendronate Sodium252 claims
- Metformin Hcl225 claims
- Famotidine220 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.
Luis M. Mercado among 1,146 internal medicine physician records in Puerto Rico
Luis M. Mercado, 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 fileYes · 52% of these records are
- Graduated1988 · median 1996 among the 595 with a school on file
- Record last updated2026 · 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).
35 internal medicine physician records list a practice address in San German
They are 35 of the 403 NPPES records with a practice address in San German, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in San German → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ivan Acosta, M.D.San German, PR 006831477616167
- Ruben Alvarez Cobian, M.D.San German, PR 006831144293291
- Pedro Ayala Cruz, M.D.San German, PR 006831124189352
- Eddanys Martinez, M.D.San German, PR 006831407831514
- Luis Negron-Garcia, MDSan German, PR 006831346448545
- Yolanda Otero-Igaravidez, MDSan German, PR 006831578544938
- Alicia Quinones Acevedo, M.D.San German, PR 006831508917303
- Araceli Rivera, M.D.San German, PR 006831073520961
Common questions
What is Luis M. Mercado, MD's NPI number?
Luis M. Mercado, MD's National Provider Identifier (NPI) is 1144227869, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Luis M. Mercado, MD located?
The NPPES record lists a practice address at Ave. Interamericana #153, San German, PR, 00683. Phone: (787) 892-4357. Providers update this record themselves, so call before visiting.
How can I verify Luis M. Mercado, MD's license?
NPPES lists Puerto Rico license number 11063, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Luis M. Mercado, MD prescribe under Medicare Part D?
In 2024, Luis M. Mercado, MD had 7,574 Medicare Part D claims for 382 beneficiaries; 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.