Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1790745099 Individual Practitioner Male Practitioner

Dr. Robert Leo Garrison , MD

Orthopaedic Surgery • Houston, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Robert Garrison, MD is a certified Orthopaedic Surgery practicing in Houston, TX. With approximately 29 years of clinical experience since graduating from University Of Missouri, Kansas City, School Of Medicine in 1997, Dr. Garrison delivers high-quality medical care to the local community at 6400 FANNIN ST STE 1700.

Dr. Garrison is affiliated with University Of Arkansas For Medical Sciences and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital inpatient care per day, established patient outpatient office visit, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

6400 Fannin St Ste 1700

Houston, TX 770301526

Telephone 7134865527
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

University Of Missouri, Kansas City, School Of Medicine

Graduation Year

1997

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Houston, TX

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
29 Yrs +4.9 yrs vs City Avg
City Avg: 24.1 Yrs
State Avg: 25.4 Yrs
Regional Practice Density
214 Specialists

Practicing in Houston, TX (1627 Statewide)

Telehealth Adoption Rate
6.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
60.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Garrison (29 Years) 29 Yrs
Houston Specialty Average (24.1 Years) 24.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99221 Initial hospital inpatient care per day, typically 30 minutes
50 49 $184.24 $73.48
99213 Established patient office or other outpatient visit, typically 15 minutes
24 16 $155.63 $60.05

Medical Specialties & State Licenses

CMS Verified: 2026-07-04
Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License AR E-4593

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License OK 26719

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
158707001 (AR)
Commercial Insurance / Payer ID Palmetto Medicare Railroad
P00256786 (AR)

Hospital & Practice Group Affiliations

University Of Arkansas For Medical Sciences

4301 W Markam St, Little Rock, AR 722057101

Phone: 5016868000

Secondary Practice Locations

4301 W Markham St

Little Rock, AR 722057101

Phone: 5016046900

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

9 Associated Practitioners
Dr. Andrey Zuskov , MD

Orthopaedic Surgery

NPI 1053738476

Doctor of Medicine (M.D.)

Dr. David Maldonado , MD

Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery

NPI 1083152938

Doctor of Medicine (M.D.)

Dr. Chen Wang , MD

Orthopaedic Surgery - Sports Medicine

NPI 1093673592

Doctor of Medicine (M.D.)

Dr. Mohammed Alshouli , MD

Orthopaedic Surgery

NPI 1245653369

Doctor of Medicine (M.D.)

Dr. Katherine Lygrisse , MD

Student in an Organized Health Care Education/Training Program

NPI 1457848541

Doctor of Medicine (M.D.)

Ricardo Abreu Irizarry

Student in an Organized Health Care Education/Training Program

NPI 1558814277

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Practice Location July 04, 2026

Registered at 6400 FANNIN ST STE 1700, HOUSTON, TX 770301526 (Tel: 7134865527)

📍
Updated Business Mailing Address July 04, 2026

Registered at 6400 FANNIN ST STE 1700, HOUSTON, TX 770301526 (Tel: 7134865527)

NPI Profile Active February 24, 2011

NPI status registered as active in NPPES database

📍
Updated Practice Location February 24, 2011

Registered at 10301 KANIS RD, LITTLE ROCK, AR 722056205 (Tel: 5016046900)

📍
Updated Business Mailing Address February 24, 2011

Registered at 10301 KANIS RD, LITTLE ROCK, AR 722056205 (Tel: 5016046900)

👤
Provider Name / Credentials Updated February 24, 2011

Recorded as ROBERT GARRISON, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 24, 2011

Orthopaedic Surgery (License #E-4593 in AR)

🟢
Initial NPI Registration & Enumeration March 23, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1790745099
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 23, 2006
Last Update: July 04, 2026
Sole Proprietor: No

Mailing Address

6400 Fannin St Ste 1700

Houston, TX 770301526

Phone: 7134865527

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.