WILLIAM DERRICK JR. FNP-C
NPI 1477958049
Nurse Practitioner - Family in Philadelphia, PA
About William Derrick Jr. Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM DERRICK JR. FNP-C (NPI 1477958049) is an individual family provider in Philadelphia, Pennsylvania, licensed in Texas (AP126699) and active in the NPI registry since October 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2014).
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
William Derrick Jr. Fnp-c 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
4Medicare enrollment records show William Derrick reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tampa, FL 33602
- Reassigned Medicare billing, Pennsylvania enrollment
- 32 clinicians in this Medicare group
Vidor, TX 77662
- Reassigned Medicare billing, Texas enrollment
- 223 clinicians in this Medicare group
Beaumont, TX 77706
- Reassigned Medicare billing, Texas enrollment
- 351 clinicians in this Medicare group
Del Valle, TX 78617
- Reassigned Medicare billing, Texas enrollment
- 294 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19125 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19125
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 Derrick's NPI number?
The NPI number for William Derrick is 1477958049. It was assigned to this individual provider in the NPPES registry on October 25, 2014.
Where is William Derrick located?
William Derrick practices at 2418 E York St, Philadelphia, PA 19125. The listed phone number is (415) 840-0560.
What is William Derrick's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is William Derrick enrolled in Medicare?
Yes. William Derrick 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 Derrick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Derrick reassigns Medicare benefits to 4 organizations: Circle Medical Care Group PA (Tampa, FL), Tmc Provider Group, PLLC (Vidor, TX), Doctors Express Of The Beaumont Area PA (Beaumont, TX) and The University Of Texas At Austin (Del Valle, TX). 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 Derrick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Derrick accept?
Health plans from Blue Cross and Blue Shield of Texas, Harbor Health and Oscar Insurance Company list William Derrick 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.
When was this NPI record last updated?
The NPPES record for William Derrick was last updated on February 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# William Derrick Jr., FNP-C · NPI 1477958049
Family physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since October 25, 2014.
## Identity
- **NPI:** 1477958049 (Entity type: Individual)
- **Enumerated:** October 25, 2014
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP126699 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 2418 E YORK ST, Philadelphia, PA 19125-3006
- **Phone:** (415) 840-0560
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Circle Medical Care Group PA (NPI 1972358760, Tampa, FL); Tmc Provider Group, PLLC (NPI 1033828058, Vidor, TX); Doctors Express Of The Beaumont Area PA (NPI 1841525235, Beaumont, TX); The University Of Texas At Austin (NPI 1245612225, Del Valle, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** February 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1477958049) · Data from the CMS NPPES public registry.