DR. TREVOR REY WILLIAMS D.O.
NPI 1336722339
Emergency Medicine in Mullica Hill, NJ
About Dr. Trevor Rey Williams D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TREVOR REY WILLIAMS D.O. (NPI 1336722339) is an individual emergency medicine provider in Mullica Hill, New Jersey, licensed in Texas (U8156) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Medical City North Hills, and is a graduate of Other (2021).
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. Trevor Rey Williams D.o. 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
2Medicare enrollment records show Trevor Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Plano, TX 75075
- Reassigned Medicare billing, Texas enrollment
- 454 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medical City North Hills
Acute Care Hospitals · North Richland Hills, TXMedical City Arlington
Acute Care Hospitals · Arlington, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08062 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.
MULLICA HILL, NJ 08062
MULLICA HILL, NJ 08062
MULLICA HILL, NJ 08062
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 Trevor Williams's NPI number?
The NPI number for Trevor Williams is 1336722339. It was assigned to this individual provider in the NPPES registry on April 28, 2021.
Where is Trevor Williams located?
Trevor Williams practices at 700 Mullica Hill Rd, Mullica Hill, NJ 08062. The listed phone number is (856) 508-1000.
What is Trevor Williams's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Trevor Williams enrolled in Medicare?
Yes. Trevor Williams 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 Trevor Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Trevor Williams reassigns Medicare benefits to 2 organizations: Questcare Medical Services PLLC (Plano, TX) and Acs Primary Care Physicians Southwest, PA (Gainesville, 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 Trevor Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Trevor Williams accept?
Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Trevor Williams 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 Trevor Williams affiliated with any hospitals?
According to CMS data, Trevor Williams is affiliated with Medical City North Hills and Medical City Arlington.
When was this NPI record last updated?
The NPPES record for Trevor Williams was last updated on August 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Trevor Rey Williams, D.O. · NPI 1336722339
Emergency Medicine physician in Mullica Hill, New Jersey. Individual provider, active in the CMS NPPES registry since April 28, 2021.
## Identity
- **NPI:** 1336722339 (Entity type: Individual)
- **Enumerated:** April 28, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** U8156 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 700 MULLICA HILL RD, Mullica Hill, NJ 08062-4413
- **Phone:** (856) 508-1000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Questcare Medical Services PLLC (NPI 1164574489, Plano, TX); Acs Primary Care Physicians Southwest, PA (NPI 1538101019, Gainesville, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 21, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1336722339) · Data from the CMS NPPES public registry.