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

Thomas M Larkin, MD

Individual provider Pain Medicine (Physical Medicine & Rehabilitation) Physician · NPI 1043318587

Thomas M Larkin, MD practises Anesthesiology in Hagerstown, Maryland. Qualified in 1991, 35 years ago. Practices with Suburban/NRH Medical Rehabilitation Inc, a 913-clinician group and accepts Medicare assignment. Licensed in Maryland and Pennsylvania.

Years since qualifying
35
Licensed in
MD, PA
In the registry since
2006
Specialties on file
5
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

17 Western Maryland Pkwy 100
Hagerstown, MD 21740-5471
Phone: (301) 797-9240
Fax: (301) 797-4234
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pain Medicine (Anesthesiology) Physician (primary) Taxonomy 207LP2900X · Licence D0058327 (MD)
Pain Medicine (Physical Medicine & Rehabilitation) Physician Taxonomy 2081P2900X · Licence D0058327 (MD)
Anesthesiology Physician Taxonomy 207L00000X · Licence D0058327 (MD)
Anesthesiology Physician Taxonomy 207L00000X · Licence MD434779 (PA)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence MD434779 (PA)

Record details

NPI number1043318587
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESJune 2, 2026
Certification dateJune 2, 2026

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesINTERVENTIONAL PAIN MANAGEMENT, PAIN MANAGEMENT, PHYSICAL MEDICINE AND REHABILITATION
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Suburban/Nrh Medical Rehabilitation Inc — 913 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients657
Services billed 6,343 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $568 26 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Suburban/NRH Medical Rehabilitation Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 913 clinicians in the practice; 12 are shown here.

Other providers in Hagerstown