Joanna Mercado/alvarado
Emergency Medical Services (Emergency Medicine) Physician · Carolina, PR
Joanna Mercado/alvarado is an emergency medical services (emergency medicine) physician with a practice address in Carolina, Puerto Rico, and NPI 1811974496, issued on Dec 27, 2005. Check the license (Puerto Rico 15353, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joanna Mercado/alvarado
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- 15353 PR
Self-reported in NPPES; status is on the state search - Practice location
- Upr Hospital # 3 Road 65TH Infantry Ave., Carolina, PR 00987
- Phone
- (787) 757-1800
- Enumerated
- Dec 27, 2005
- Record last updated
- Nov 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (787) 750-0930
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 11 in Puerto Rico → Look up another NPI →
Verify Joanna Mercado/alvarado 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 15353Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
171 Medicare Part D claims for 127 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D.
Most prescribed
- Famotidine23 claims
- Amoxicillin-Clavulanate Potass21 claims
- Prednisone19 claims
- Naproxen11 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.
Joanna Mercado/alvarado among 11 emergency medical services (emergency medicine) physician records in Puerto Rico
Joanna Mercado/alvarado is one of 11 emergency medical services (emergency medicine) physician records with a practice address in Puerto Rico. 73% 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, 82% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 27% of these records are
- Record last updated2010 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in Puerto Rico
There are 11 emergency medical services (emergency medicine) physician records in Puerto Rico.
All 11 in Puerto Rico → Every provider in Carolina → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- Moises VelazquezTrujillo Alto, PR 009761598228074
- Julio Medina, M.D.Guaynabo, PR 009661902097819
- Vinicio Almonte-Duran, MDBayamon, PR 009611649494071
- Nikitas Rodriguez, MDSan Juan, PR 009361437730322
- Jaime Marques Marques, M.D.San Juan, PR 009261043266265
- Carlos Gomez-Marcial, M.D.Santurce, PR 009101386731362
- Jose Rodriguez Fontanez, M.DGuayama, PR 007851104812122
- Leniel Santana, M.D.Ponce, PR 007331912274481
Common questions
What is Joanna Mercado/alvarado's NPI number?
Joanna Mercado/alvarado's National Provider Identifier (NPI) is 1811974496, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joanna Mercado/alvarado located?
The NPPES record lists a practice address at Upr Hospital # 3 Road 65TH Infantry Ave., Carolina, PR, 00987. Phone: (787) 757-1800. Providers update this record themselves, so call before visiting.
How can I verify Joanna Mercado/alvarado's license?
NPPES lists Puerto Rico license number 15353, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Joanna Mercado/alvarado prescribe under Medicare Part D?
In 2024, Joanna Mercado/alvarado had 171 Medicare Part D claims for 127 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.