DR. JOHN MARK CHAUNCEY M.D.
NPI 1093194292
Emergency Medicine in Temple, TX
About Dr. John Mark Chauncey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MARK CHAUNCEY M.D. (NPI 1093194292) is an individual emergency medicine provider in Temple, Texas, licensed in Texas (BP20065386) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with Christus Good Shepherd Medical Center, and is a graduate of Texas Tech University Health Science Center School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 2
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. John Mark Chauncey M.d. 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
5Medicare enrollment records show John Chauncey reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 1,511 clinicians in this Medicare group
Jacksonville, TX 75766
- Reassigned Medicare billing, Texas enrollment
- 409 clinicians in this Medicare group
Tyler, TX 75701
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
Nacogdoches, TX 75961
- Reassigned Medicare billing, Texas enrollment
- 109 clinicians in this Medicare group
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 272 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus Good Shepherd Medical Center
Acute Care Hospitals · Longview, TXChristus Mother Frances Hospital
Acute Care Hospitals · Tyler, TXNacogdoches Memorial Hospital
Acute Care Hospitals · Nacogdoches, TXNacogdoches Medical Center
Acute Care Hospitals · Nacogdoches, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 76508 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.
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 John Chauncey's NPI number?
The NPI number for John Chauncey is 1093194292. It was assigned to this individual provider in the NPPES registry on May 21, 2015.
Where is John Chauncey located?
John Chauncey practices at 2401 S 31st St, Temple, TX 76508. The listed phone number is (806) 577-0999.
What is John Chauncey's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Chauncey enrolled in Medicare?
Yes. John Chauncey 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 John Chauncey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Chauncey reassigns Medicare benefits to 5 organizations: Travis County Emergency Physicians PA (Austin, TX), Mother Frances Hospital Jacksonville (Jacksonville, TX), Mother Frances Hospital Regional Health Care Center (Tyler, TX), Ess Of Nacogdoches LLC (Nacogdoches, TX) and Northeast Texas Emergency Physicians, PLLC (Longview, 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 John Chauncey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Chauncey accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health and Oscar Insurance Company and 1 other insurer list John Chauncey 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 John Chauncey affiliated with any hospitals?
According to CMS data, John Chauncey is affiliated with Christus Good Shepherd Medical Center, Christus Mother Frances Hospital, Nacogdoches Memorial Hospital and Nacogdoches Medical Center.
When was this NPI record last updated?
The NPPES record for John Chauncey was last updated on May 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. John Mark Chauncey, M.D. · NPI 1093194292
Emergency Medicine physician in Temple, Texas. Individual provider, active in the CMS NPPES registry since May 21, 2015.
## Identity
- **NPI:** 1093194292 (Entity type: Individual)
- **Enumerated:** May 21, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** BP20065386 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2401 S 31ST ST, Temple, TX 76508-0001
- **Phone:** (806) 577-0999
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Travis County Emergency Physicians PA (NPI 1962440933, Austin, TX); Mother Frances Hospital Jacksonville (NPI 1952306672, Jacksonville, TX); Mother Frances Hospital Regional Health Care Center (NPI 1679578439, Tyler, TX); Ess Of Nacogdoches LLC (NPI 1780139956, Nacogdoches, TX); Northeast Texas Emergency Physicians, PLLC (NPI 1114607611, Longview, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Texas Tech University Health Science Center School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** May 25, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1093194292) · Data from the CMS NPPES public registry.