William J. Velasco Perez, MD
Emergency Medicine Physician · Guaynabo, PR
William J. Velasco Perez, MD is an emergency medicine physician with a practice address in Guaynabo, Puerto Rico, and NPI 1982723383, issued on Mar 28, 2007. Check the license (Puerto Rico 12892, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William J. Velasco Perez
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 12892 PR
Self-reported in NPPES; status is on the state search - Practice location
- Pmb 206, Guaynabo, PR 00970
- Phone
- (787) 409-4175
- Enumerated
- Mar 28, 2007
- Record last updated
- Jan 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141211000555); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 278 in Puerto Rico → Look up another NPI →
Verify William J. Velasco Perez 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 12892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average emergency medicine physician in 2024
379 Medicare Part D claims for 229 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Tramadol Hcl32 claims
- Cephalexin31 claims
- Prednisone31 claims
- Amoxicillin-Clavulanate Potass27 claims
- Ondansetron Odt19 claims
- Sulfamethoxazole-Trimethoprim18 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
- Tampa Bay Emergency Physicians-Heartland LLCSebring, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William J. Velasco Perez among 278 emergency medicine physician records in Puerto Rico
William J. Velasco Perez, MD is one of 278 emergency medicine physician records with a practice address in Puerto Rico. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.
- NPI issued2007 · 32% of these records are older, 52% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1995 · median 2013 among the 81 with a school on file
- Record last updated2011 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X 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 Medicine Physician providers in Puerto Rico
There are 278 emergency medicine physician records in Puerto Rico.
All 278 in Puerto Rico → Every provider in Guaynabo → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Alenis Alejandro Escribano, M.D.Guaynabo, PR 009691437427770
- Gardine Colon Guerra, MDGuaynabo, PR 009691821254459
- Nelson Crespo Martinez, M.D.Guaynabo, PR 009691467999631
- Victor Rivera Cruz, M.D.Guaynabo, PR 009691558482638
- Jonathan Melendez Hernandez, MDGuaynabo, PR 009661992712673
- Hector Alonso-Serra, MDTrujillo Alto, PR 009761285615856
- Emmanuel Morales Monsanto, MDTrujillo Alto, PR 009761679217525
- Cristian Vargas Ramos, MDTrujillo Alto, PR 009761750811337
Common questions
What is William J. Velasco Perez, MD's NPI number?
William J. Velasco Perez, MD's National Provider Identifier (NPI) is 1982723383, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William J. Velasco Perez, MD located?
The NPPES record lists a practice address at Pmb 206, Guaynabo, PR, 00970. Phone: (787) 409-4175. Providers update this record themselves, so call before visiting.
How can I verify William J. Velasco Perez, MD's license?
NPPES lists Puerto Rico license number 12892, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does William J. Velasco Perez, MD prescribe under Medicare Part D?
In 2024, William J. Velasco Perez, MD had 379 Medicare Part D claims for 229 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.