DR. WILLIAM BRYAN BISHOP III DO
NPI 1366902850
Emergency Medicine in Hattiesburg, MS
About Dr. William Bryan Bishop Iii Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM BRYAN BISHOP III DO (NPI 1366902850) is an individual emergency medicine provider in Hattiesburg, Mississippi, licensed in Mississippi (29253) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Tidalhealth Peninsula Regional, Inc, and is a graduate of Lake Erie College Of Osteopathic Medicine, Bradenton (2019).
NPPES Registry Identity
Specialties & Licenses 2
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 Bryan Bishop Iii Do 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 Reassignment
Medicare enrollment records show William Bishop reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Salisbury, MD 21801
- Reassigned Medicare billing, Delaware and Maryland enrollments
- 39 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 6
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.
Tidalhealth Peninsula Regional, Inc
Acute Care Hospitals · Salisbury, MDAtlantic General Hospital
Acute Care Hospitals · Berlin, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
HATTIESBURG, MS 39402
HATTIESBURG, MS 39402
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 Bishop's NPI number?
The NPI number for William Bishop is 1366902850. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is William Bishop located?
William Bishop practices at 5001 Hardy St, Hattiesburg, MS 39402. The listed phone number is (601) 296-3963.
What is William Bishop's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Bishop enrolled in Medicare?
Yes. William Bishop 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 organization bills Medicare for William Bishop's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Bishop reassigns Medicare benefits to Emergency Service Associates PA (Salisbury, MD). The 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 Bishop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Bishop affiliated with any hospitals?
According to CMS data, William Bishop is affiliated with Tidalhealth Peninsula Regional, Inc and Atlantic General Hospital.
When was this NPI record last updated?
The NPPES record for William Bishop was last updated on September 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. William Bryan Bishop III, DO · NPI 1366902850
Emergency Medicine physician in Hattiesburg, Mississippi. Individual provider, active in the CMS NPPES registry since March 21, 2019.
## Identity
- **NPI:** 1366902850 (Entity type: Individual)
- **Enumerated:** March 21, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 29253 (Mississippi)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5001 HARDY ST, Hattiesburg, MS 39402-1308
- **Phone:** (601) 296-3963
## 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:** Emergency Service Associates PA (NPI 1558340562, Salisbury, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lake Erie College Of Osteopathic Medicine, Bradenton, class of 2019
## Record status
- **NPPES last updated:** September 13, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1366902850) · Data from the CMS NPPES public registry.