DR. MARK JAMES MEHAFFEY M.D.
NPI 1437171287
Emergency Medicine in Houston, TX
About Dr. Mark James Mehaffey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK JAMES MEHAFFEY M.D. (NPI 1437171287) is an individual emergency medicine provider in Houston, Texas, licensed in Texas (K5046) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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)
Dr. Mark James Mehaffey M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mark Mehaffey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,675 clinicians in this Medicare group
Pasadena, TX 77505
- Reassigned Medicare billing, Texas enrollment
- 644 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77030 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 Mehaffey's NPI number?
The NPI number for Mark Mehaffey is 1437171287. It was assigned to this individual provider in the NPPES registry on July 24, 2006.
Where is Mark Mehaffey located?
Mark Mehaffey practices at 6720 Bertner St, Houston, TX 77030. The listed phone number is (832) 355-2121.
What is Mark Mehaffey's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Mehaffey enrolled in Medicare?
Yes. Mark Mehaffey is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Mehaffey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mehaffey reassigns Medicare benefits to 2 organizations: Physicians Referral Service (Houston, TX) and Integrative Emergency Services Physician Group-Houston PLLC (Pasadena, 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 Mark Mehaffey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Mehaffey accept?
Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Mark Mehaffey 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 Mehaffey was last updated on July 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.