LAWRENCE RAEBURN HAMNER III M.D.
NPI 1891722633
Thoracic Surgery (Cardiothoracic Vascular Surgery) in San Antonio, TX
About Lawrence Raeburn Hamner Iii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAWRENCE RAEBURN HAMNER III M.D. (NPI 1891722633) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in San Antonio, Texas, licensed in Texas (F9530) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and is a graduate of University Of Texas Southwestern Medical School At Dallas (1981).
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
Lawrence Raeburn Hamner Iii M.d. 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 Reassignments
2Medicare enrollment records show Lawrence Hamner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78209
- Reassigned Medicare billing, Texas enrollment
Corpus Christi, TX 78404
- Reassigned Medicare billing, Nevada and Texas enrollments
- Medicare enrollment name: J Mark Morales MD PA
- 3 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.
Christus Santa Rosa Hospital-San Marcos
Acute Care Hospitals · San Marcos, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78209 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN ANTONIO, TX 78209
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 Lawrence Hamner's NPI number?
The NPI number for Lawrence Hamner is 1891722633. It was assigned to this individual provider in the NPPES registry on June 27, 2006.
Where is Lawrence Hamner located?
Lawrence Hamner practices at 225 Geneseo Rd, San Antonio, TX 78209. The listed phone number is (210) 867-9678.
What is Lawrence Hamner's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Lawrence Hamner enrolled in Medicare?
Yes. Lawrence Hamner 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 organizations bill Medicare for Lawrence Hamner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Hamner reassigns Medicare benefits to 2 organizations: Lawrence R Hamner III MD PA (San Antonio, TX) and J. Mark Morales, M.D., PA (Corpus Christi, 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 Lawrence Hamner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lawrence Hamner accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Lawrence Hamner 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 Lawrence Hamner affiliated with any hospitals?
According to CMS data, Lawrence Hamner is affiliated with Christus Santa Rosa Hospital-San Marcos.
When was this NPI record last updated?
The NPPES record for Lawrence Hamner was last updated on September 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Lawrence Raeburn Hamner III, M.D. · NPI 1891722633
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in San Antonio, Texas. Individual provider, active in the CMS NPPES registry since June 27, 2006.
## Identity
- **NPI:** 1891722633 (Entity type: Individual)
- **Enumerated:** June 27, 2006
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** F9530 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 225 GENESEO RD, San Antonio, TX 78209-5913
- **Phone:** (210) 867-9678
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Lawrence R Hamner III MD PA (NPI 1093349946, San Antonio, TX); J. Mark Morales, M.D., PA (NPI 1225168784, Corpus Christi, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Southwestern Medical School At Dallas, class of 1981
## Record status
- **NPPES last updated:** September 19, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1891722633) · Data from the CMS NPPES public registry.