MARK SHELL DO
NPI 1265097000
Internal Medicine - Gastroenterology in Temple, TX
About Mark Shell Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK SHELL DO (NPI 1265097000) is an individual gastroenterology provider in Temple, Texas, licensed in Texas (T1845) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center - Temple, and maintains a secondary practice location in Temple.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Mark Shell 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 Mark Shell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Temple, TX 76508
- Reassigned Medicare billing, Texas enrollment
- 2,795 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baylor Scott & White Medical Center - Temple
Acute Care Hospitals · Temple, TXBaylor Scott & White Medical Center- College Stati
Acute Care Hospitals · College Station, 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 Mark Shell's NPI number?
The NPI number for Mark Shell is 1265097000. It was assigned to this individual provider in the NPPES registry on May 7, 2019.
Where is Mark Shell located?
Mark Shell practices at 1605 S 31st St, Temple, TX 76508. The listed phone number is (254) 215-0100.
What is Mark Shell's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Mark Shell enrolled in Medicare?
Yes. Mark Shell 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 Mark Shell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Shell reassigns Medicare benefits to Scott & White Clinic (Temple, TX). 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 Mark Shell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Shell accept?
Health plans from Baylor Scott and White Health Plan and Blue Cross and Blue Shield of Texas list Mark Shell 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 Mark Shell affiliated with any hospitals?
According to CMS data, Mark Shell is affiliated with Baylor Scott & White Medical Center - Temple and Baylor Scott & White Medical Center- College Stati.
When was this NPI record last updated?
The NPPES record for Mark Shell was last updated on June 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Mark Shell, DO · NPI 1265097000
Gastroenterology physician in Temple, Texas. Individual provider, active in the CMS NPPES registry since May 7, 2019.
## Identity
- **NPI:** 1265097000 (Entity type: Individual)
- **Enumerated:** May 7, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** T1845 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1605 S 31ST ST, Temple, TX 76508-0001
- **Phone:** (254) 215-0100 · **Fax:** (254) 215-0636
## 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:** Scott & White Clinic (NPI 1093779704, Temple, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of North Texas Hsc, College Of Osteopathic Med, class of 2019
## Record status
- **NPPES last updated:** June 20, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1265097000) · Data from the CMS NPPES public registry.