MARK BUCK DO
NPI 1578085031
Family Medicine in Galveston, TX
About Mark Buck Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK BUCK DO (NPI 1578085031) is an individual family medicine provider in Galveston, Texas, licensed in Texas (S7396) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, is affiliated with University Of Texas Medical Branch Galveston, and is a graduate of Other (2017).
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
Mark Buck 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 Buck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Galveston, TX 77555
- Reassigned Medicare billing, Texas enrollment
- 2,222 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Texas Medical Branch Galveston
Acute Care Hospitals · Galveston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77551 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GALVESTON, TX 77551
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 Buck's NPI number?
The NPI number for Mark Buck is 1578085031. It was assigned to this individual provider in the NPPES registry on July 16, 2017.
Where is Mark Buck located?
Mark Buck practices at 6710 Stewart Rd Ste 100, Galveston, TX 77551. The listed phone number is (409) 744-4030.
What is Mark Buck's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mark Buck enrolled in Medicare?
Yes. Mark Buck 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 Buck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Buck reassigns Medicare benefits to Utmb Faculty Group Practice (Galveston, 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 Buck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Buck accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and WellPoint list Mark Buck 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 Buck affiliated with any hospitals?
According to CMS data, Mark Buck is affiliated with University Of Texas Medical Branch Galveston.
When was this NPI record last updated?
The NPPES record for Mark Buck was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 Buck, DO · NPI 1578085031
Family Medicine physician in Galveston, Texas. Individual provider, active in the CMS NPPES registry since July 16, 2017.
## Identity
- **NPI:** 1578085031 (Entity type: Individual)
- **Enumerated:** July 16, 2017
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** S7396 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6710 STEWART RD STE 100, Galveston, TX 77551-2216
- **Phone:** (409) 744-4030 · **Fax:** (409) 740-4187
## 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:** Utmb Faculty Group Practice (NPI 1942241146, Galveston, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** July 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1578085031) · Data from the CMS NPPES public registry.