John Stuart Larkin, MD
Emergency Medicine Physician · Bellaire, TX
John Stuart Larkin, MD is an emergency medicine physician with a practice address in Bellaire, Texas, and NPI 1669797619, issued on Apr 1, 2010. Check the license (Texas N-5179, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Stuart Larkin
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- N-5179 TX
MD154029 OR
Self-reported in NPPES; status is on the state search - Practice location
- 6800 West Loop S, Bellaire, TX 77401
- Phone
- (713) 838-0800
- Enumerated
- Apr 1, 2010
- Record last updated
- Sep 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20111004000282); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 6800 West Loop S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Stuart Larkin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N-5179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average emergency medicine physician in 2024
98 Medicare Part D claims for 69 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen14 claims
- Prednisone11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Memorial Hermann Hospital Based Physician GroupHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Stuart Larkin among 4,885 emergency medicine physician records in Texas
John Stuart Larkin, MD is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 48% of them.
- NPI issued2010 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2008 · median 2013 among the 2,779 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Texas
There are 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Bellaire → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Abraham Abbott, MDBellaire, TX 774011023197175
- Stuart Boss, M.D.Bellaire, TX 774011124316989
- Martha Castro, M.D.Bellaire, TX 774011346776309
- Barry Diner, MDBellaire, TX 774011265466262
- Samuel Dodson, M.D.Bellaire, TX 774011366857831
- Michael Lu, D.O.Bellaire, TX 774011750658704
- Howard Ng, M.D.Bellaire, TX 774011639161193
- Alan LoHumble, TX 773961871786640
Common questions
What is John Stuart Larkin, MD's NPI number?
John Stuart Larkin, MD's National Provider Identifier (NPI) is 1669797619, issued on Apr 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Stuart Larkin, MD located?
The NPPES record lists a practice address at 6800 West Loop S, Bellaire, TX, 77401. Phone: (713) 838-0800. Providers update this record themselves, so call before visiting.
How can I verify John Stuart Larkin, MD's license?
NPPES lists Texas license number N-5179, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Stuart Larkin, MD prescribe under Medicare Part D?
In 2024, John Stuart Larkin, MD had 98 Medicare Part D claims for 69 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.