JOHN MARK MCLAIN MD
NPI 1366857336
Surgery in New Braunfels, TX
About John Mark Mclain Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN MARK MCLAIN MD (NPI 1366857336) is an individual surgery provider in New Braunfels, Texas, licensed in Texas (S5985) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Guadalupe Regional Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Group Practice 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
John Mark Mclain Md 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 John Mclain reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Guadalupe Regional Medical Center
Acute Care Hospitals · Seguin, TXChristus Santa Rosa Hospital-San Marcos
Acute Care Hospitals · San Marcos, TXResolute Health Hospital
Acute Care Hospitals · New Braunfels, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78130 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Mclain's NPI number?
The NPI number for John Mclain is 1366857336. It was assigned to this individual provider in the NPPES registry on June 27, 2014.
Where is John Mclain located?
John Mclain practices at 545 Creekside Xing Ste 222, New Braunfels, TX 78130. The listed phone number is (830) 310-3491.
What is John Mclain's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is John Mclain enrolled in Medicare?
Yes. John Mclain 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 John Mclain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mclain reassigns Medicare benefits to Christus Trinity Clinic Texas (Tyler, 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 John Mclain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Mclain accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Community First, Harbor Health and Imperial Insurance Companies, Inc. and 3 other insurers list John Mclain 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 Mclain affiliated with any hospitals?
According to CMS data, John Mclain is affiliated with Guadalupe Regional Medical Center, Christus Santa Rosa Hospital-San Marcos and Resolute Health Hospital.
When was this NPI record last updated?
The NPPES record for John Mclain was last updated on April 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# John Mark Mclain, MD · NPI 1366857336
Surgery physician in New Braunfels, Texas. Individual provider, active in the CMS NPPES registry since June 27, 2014.
## Identity
- **NPI:** 1366857336 (Entity type: Individual)
- **Enumerated:** June 27, 2014
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** S5985 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 545 CREEKSIDE XING STE 222, New Braunfels, TX 78130-4565
- **Phone:** (830) 310-3491 · **Fax:** (830) 310-3506
## 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:** Christus Trinity Clinic Texas (NPI 1285684225, Tyler, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wright State University Boonshoft School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** April 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366857336) · Data from the CMS NPPES public registry.