DR. WILLIAM J VELASCO PEREZ MD
NPI 1982723383
Emergency Medicine in Guaynabo, PR
About Dr. William J Velasco Perez Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM J VELASCO PEREZ MD (NPI 1982723383) is an individual emergency medicine provider in Guaynabo, Puerto Rico, licensed in Puerto Rico (12892) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Sebring, and is a graduate of University Of Puerto Rico School Of Medicine (1995).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William J Velasco Perez Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show William Velasco Perez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Caguas, PR 00725
- Reassigned Medicare billing, Puerto Rico enrollment
- 428 clinicians in this Medicare group
Tampa, FL 33613
- Reassigned Medicare billing, Florida enrollment
- 231 clinicians in this Medicare group
Sebring, FL 33872
- Reassigned Medicare billing, Florida enrollment
- 318 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventhealth Sebring
Acute Care Hospitals · Sebring, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 00970 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Velasco Perez's NPI number?
The NPI number for William Velasco Perez is 1982723383. It was assigned to this individual provider in the NPPES registry on March 28, 2007.
Where is William Velasco Perez located?
William Velasco Perez practices at Pmb 206 Jardines De Guaynabo Suite 67, Guaynabo, PR 00970. The listed phone number is (787) 409-4175.
What is William Velasco Perez's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Velasco Perez enrolled in Medicare?
Yes. William Velasco Perez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for William Velasco Perez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Velasco Perez reassigns Medicare benefits to 3 organizations: Centro Medico Del Turabo Inc (Caguas, PR), Tampa Bay Emergency Physicians LLC (Tampa, FL) and Tampa Bay Emergency Physicians-Heartland LLC (Sebring, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Velasco Perez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Velasco Perez accept?
Health plans from Oscar Health Maintenance Organization of Florida list William Velasco Perez as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is William Velasco Perez affiliated with any hospitals?
According to CMS data, William Velasco Perez is affiliated with Adventhealth Sebring.
When was this NPI record last updated?
The NPPES record for William Velasco Perez was last updated on January 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.