Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. John Stuart Larkin, MD

Individual provider Emergency Medicine Physician · NPI 1669797619

Dr. John Stuart Larkin, MD practises Emergency Medicine in Bellaire, Texas. Graduated from University of Texas Medical School at Houston in 2008, 18 years ago. Practices with Memorial Hermann Hospital Based Physician Group, a 269-clinician group and accepts Medicare assignment. Licensed in Oregon and Texas.

Years since qualifying
18
Trained at
University of Texas Medical School at Houston
Licensed in
OR, TX
In the registry since
2010
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6800 W Loop S Ste 300
Bellaire, TX 77401-4528
Phone: (713) 838-0800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence N-5179 (TX)
General Practice Physician Taxonomy 208D00000X · Licence MD154029 (OR)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD154029 (OR)

Record details

NPI number1669797619
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2010
Last updated in NPPESSeptember 17, 2024
Certification dateSeptember 17, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 2008 (18 years in practice)
Group practice Memorial Hermann Hospital Based Physician Group — 269 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients127
Services billed 218 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Memorial Hermann Hospital Based Physician Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 269 clinicians in the practice; 12 are shown here.

Other providers in Bellaire