MARK GAN D.O.
NPI 1215033931
Anesthesiology in El Paso, TX
About Mark Gan D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK GAN D.O. (NPI 1215033931) is an individual anesthesiology provider in El Paso, Texas, licensed in Texas (G8120) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark Gan D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Gan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
El Paso, TX 79936
- Reassigned Medicare billing, Texas enrollment
- 8 clinicians in this Medicare group
Pensacola, FL 32502
- Reassigned Medicare billing, Texas enrollment
- 432 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
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.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EL PASO, TX 79902
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 Gan's NPI number?
The NPI number for Mark Gan is 1215033931. It was assigned to this individual provider in the NPPES registry on September 16, 2006.
Where is Mark Gan located?
Mark Gan practices at 3909 N Mesa St Ste 100, El Paso, TX 79902. The listed phone number is (915) 532-2222.
What is Mark Gan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Gan enrolled in Medicare?
Yes. Mark Gan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Gan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gan reassigns Medicare benefits to 2 organizations: Donya Anesthesiology And Pain Medicine, PLLC (El Paso, TX) and Texas Ams PLLC (Pensacola, FL). 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 Mark Gan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Gan accept?
Health plans from Blue Cross and Blue Shield of Texas list Mark Gan 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.
When was this NPI record last updated?
The NPPES record for Mark Gan was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 Gan, D.O. · NPI 1215033931
Anesthesiology physician in El Paso, Texas. Individual provider, active in the CMS NPPES registry since September 16, 2006.
## Identity
- **NPI:** 1215033931 (Entity type: Individual)
- **Enumerated:** September 16, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** G8120 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 3909 N MESA ST STE 100, El Paso, TX 79902-1501
- **Phone:** (915) 532-2222
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Donya Anesthesiology And Pain Medicine, PLLC (NPI 1407357460, El Paso, TX); Texas Ams PLLC (NPI 1174926125, Pensacola, FL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 21, 2025
- **Other identifiers:** Medicaid 133738801 (TX); Other 8U4600 (TX); Medicaid 133738808 (TX); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1215033931) · Data from the CMS NPPES public registry.