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Dr. Thomas M. Larkin, MD
NPI1043318587PAC ID1951338946
- Medicare services, 2024
- 5,466
- Medicare patients, 2024
- 657
- Part D claims, 2024
- 348
- Publications
- 6
- Industry payments
- $11,274
- Practice address
- 6410 Rockledge Drive, #110, Bethesda, MD 20817
- Practice phone
- Call (615) 345-6879
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Capitol Surgical Center
Surgery Center - Medicare-Certified · Bethesda, Maryland
Find Dr. Larkin's professional email, personal email and mobile number
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Dr. Thomas M. Larkin is a pain medicine (anesthesiology) physician in Bethesda, Maryland
Dr. Larkin practices at Capitol Surgical Center in Bethesda, Maryland.
Dr. Larkin's NPI, 1043318587, was assigned on September 20, 2006. Dr. Larkin holds Maryland license D0058327.
NPI and contact details
- NPI
- 1043318587NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951338946
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 345-6879
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas M. Larkin practices at Capitol Surgical Center in Bethesda, Maryland
Dr. Larkin's primary practice is Capitol Surgical Center, at 6410 Rockledge Drive, #110, Bethesda, MD 20817. The practice phone is (615) 345-6879.
- Capitol Surgical Center6410 Rockledge Drive, #110, Bethesda, MD 20817Phone(615) 345-6879
Source: Dmand AI Affiliation Data
Dr. Thomas M. Larkin is affiliated with 3 sites of care and 2 medical groups
Dr. Larkin's primary practice is Capitol Surgical Center in Bethesda, Maryland. The medical group on file is Pain Management Institute. Dmand AI also links Dr. Larkin to 2 more group practices and clinics and 1 medical group, each named with a free account.
Capitol Surgical CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas M. Larkin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larkin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Capitol Surgical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas M. Larkin is one of 95 pain medicine (anesthesiology) physicians in Maryland
Pain medicine is Dr. Larkin's primary specialty in the NPI Registry, under taxonomy code 207LP2900X. Dmand AI has Dr. Larkin's licenses on file in 2 states: Maryland and Pennsylvania.
Specialties and state licenses
- Pain medicine (anesthesiology), MarylandPrimary
- Pennsylvania license
Pain medicine (anesthesiology) physicians near Dr. Larkin
Counts of pain medicine (anesthesiology) physicians with a Dmand AI profile, by place and practice. Each opens the list.
95pain medicine (anesthesiology) physicians in Maryland
3pain medicine (anesthesiology) physicians in Bethesda
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas M. Larkin billed Medicare for 5,466 services in 2024
CMS data shows 5,466 Medicare services from Dr. Larkin across 27 procedure codes in 2024, for 657 Medicare patients. Medicare paid $302,913 for them.
Medicare services, 20245,466
Medicare patients657
Paid by Medicare$302,913
Procedure codes27
Dr. Larkin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 9362024: 1,40750%
- Drugs given in the office
- 2023: 1852024: 1,199548%
- Office and hospital visits
- 2023: 7752024: 1,17852%
- Other services
- 2023: 3872024: 926139%
- Tests and treatments
- 2023: 4932024: 5022%
- Lab and pathology
- 2023: 2952024: 25414%
- Imaging
- 2023: 292024: 0100%
Where Dr. Larkin's Medicare services took place, 2024
- In an office4,18577%
- In a facility1,28123%
Dr. Larkin compared with the Maryland median for pain medicine (anesthesiology) physicians, 2024
- Dr. Larkin
- Maryland median
- Medicare services
- 5,466vs 1,0065.4 times
- Medicare patients
- 657vs 2982.2 times
- Part D claims
- 211vs 59464% below
Medians across 100 pain medicine (anesthesiology) physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Larkin's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Larkin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Larkin and other pain medicine (anesthesiology) physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas M. Larkin treated 657 Medicare patients in 2024, average age 76
CMS counts 657 Medicare patients who saw Dr. Larkin in 2024. The largest group is 75 to 84, with 282 patients. 75% of them have arthritis, and 75% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Larkin's median patient age at 70, with 66% women.
Medicare patients, 2024657
Average age76
Average risk score1.16
Also on Medicaid5%
Dr. Larkin's Medicare patients by age, 2024
Dr. Larkin's Medicare patients by sex, 2024
- Women43967%
- Men21833%
Chronic conditions among Dr. Larkin's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders32%
- Anxiety31%
- Osteoporosis29%
- Depression28%
- Ischemic heart disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Larkin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women66%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas M. Larkin wrote 348 Medicare Part D claims in 2024
In 2024, Dr. Larkin wrote 348 Medicare Part D claims for 104 patients. 91% of them were for generic drugs. CMS names the drug for 211 of them, across 13 drugs with 11 or more claims each, at $11,977 in total drug cost. In 2023, CMS named 369 claims across 16 drugs.
Part D claims, 2024348
Drugs named by CMS13
Total drug cost$11,977
Part D patients104
Dr. Larkin's Part D claims by kind of drug, 2024
- Generic315 claims91%
- Brand-name33 claims9%
Dr. Larkin's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Larkin's Part D claims, 2024
- Opioids30%103 of 348 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3692024: 21143%
Drugs named by CMS: 13 in 2024, 16 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Thomas M. Larkin takes part in Medicare
Dr. Larkin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Thomas M. Larkin has 6 publications on record
Dmand AI links 6 papers to Dr. Larkin, published from 2011 to 2018. Dr. Larkin has published most often in Pain Med. Dr. Larkin's most frequent co-authors are Matthew Timothy Crooks, MD, Kayode Ayodele Williams, MD and Octav Cristian Constantinescu, MD.
Papers6
Years published2011 to 2018
Dr. Larkin's most frequent co-authors
- Matthew Timothy Crooks, MD2 shared papers
- Kayode Ayodele Williams, MD2 shared papers
- Octav Cristian Constantinescu, MD1 shared paper
Recent publications by Dr. Larkin
Chronic PainRadiofrequency AblationResearch Design
See who Dr. Larkin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Larkin works with, so you can find a warm path to the right pain medicine (anesthesiology) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas M. Larkin received $11,274 in industry payments from 2016 to 2025
CMS Open Payments shows 418 general payments to Dr. Larkin from 49 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Abbott Laboratories paid the most, $3,062.
General payments to Dr. Larkin by program year, 2016 to 2025
General payments to Dr. Larkin by kind, 2016 to 2025
$11.3Kin total
- Food and beverage$10,69395%
- Travel and lodging$5825%
Companies that paid Dr. Larkin the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas M. Larkin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas M. Larkin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thomas M. Larkin's NPI number?
Dr. Thomas M. Larkin's NPI number is 1043318587. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas M. Larkin?
Dr. Thomas M. Larkin is a pain medicine (anesthesiology) physician in Bethesda, Maryland. The primary specialty in the NPI Registry is Pain Medicine (Anesthesiology) Physician (taxonomy code 207LP2900X).
Where does Dr. Thomas M. Larkin practice?
Dr. Larkin practices at 6410 Rockledge Drive, #110, Bethesda, MD 20817. Dr. Larkin's primary practice is Capitol Surgical Center in Bethesda, Maryland. Dmand AI also links Dr. Larkin to 2 group practices and clinics and 1 medical group.
What is Dr. Thomas M. Larkin's office phone number?
The practice phone on file for Dr. Larkin is (615) 345-6879.
What is Dr. Thomas M. Larkin's medical license number?
Dr. Larkin holds Maryland license D0058327, one of the licenses on file in 2 states.
Which states has Dr. Thomas M. Larkin been licensed in?
Dmand AI has state licenses on file for Dr. Larkin in Maryland and Pennsylvania.
What medical group is Dr. Thomas M. Larkin part of?
Dr. Larkin is linked to Pain Management Institute. Dmand AI links Dr. Larkin to 1 more medical group.
Does Dr. Thomas M. Larkin accept Medicare?
Yes. CMS data shows Dr. Larkin billed Medicare for 5,466 services in 2024, and Dr. Larkin accepts Medicare assignment.
How many Medicare patients does Dr. Thomas M. Larkin see?
CMS counts 657 Medicare patients who saw Dr. Larkin in 2024, with an average age of 76.
What services does Dr. Thomas M. Larkin bill to Medicare?
In 2024, Dr. Larkin's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99214) and medicare temporary code (Q9967).
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What drugs does Dr. Thomas M. Larkin prescribe most?
In 2024 Medicare Part D data, Dr. Larkin's most prescribed drugs by claims were Gabapentin, Tramadol HCl and Baclofen.
Has Dr. Thomas M. Larkin received payments from drug or device companies?
CMS Open Payments shows $11,274 in general payments to Dr. Larkin from 49 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Thomas M. Larkin been practicing?
Dr. Larkin graduated from medical school in 1991, 35 years ago.
Does Dr. Thomas M. Larkin do research?
Dmand AI links 6 publications to Dr. Larkin, published from 2011 to 2018.
Who does Dr. Thomas M. Larkin publish with?
Dr. Larkin's most frequent co-authors are Matthew Timothy Crooks, MD (2 shared papers), Kayode Ayodele Williams, MD (2 shared papers) and Octav Cristian Constantinescu, MD (1 shared paper).
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