Dr. Brian Thomas Clark, MD
- Medicare services, 2024
- 639
- Medicare patients, 2024
- 431
- Part D claims, 2024
- 844
- Hospital affiliations
- 6
- Industry payments
- $643
- Practice address
- 325 Maine Street, Lawrence, KS 66044
- Practice phone
- Call (785) 505-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Clark's professional email, personal email and mobile number
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Dr. Brian Thomas Clark is a gastroenterologist in Medford, Massachusetts
Dr. Clark practices at LMH Health in Lawrence, Kansas, part of City of Lawrence, KS.
Dr. Clark's NPI, 1114193612, was assigned on May 5, 2008. Dr. Clark graduated from Boston University School of Medicine in 2008. Dr. Clark holds Massachusetts license 262160.
- NPI
- 1114193612NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264619667
- NPI enumeration date
- May 5, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (785) 505-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Thomas Clark practices in Lawrence and Medford
Dr. Clark's primary practice is LMH Health, at 325 Maine Street, Lawrence, KS 66044 in Douglas County. The practice phone is (785) 505-5000. Dr. Clark also practices at Lawrence Memorial Hospital, 170 Governors Ave, Medford, MA 02155.
- LMH HealthPrimary325 Maine Street, Lawrence, KS 66044 · Douglas CountyPhone(785) 505-5000
- Lawrence Memorial Hospital170 Governors Ave, Medford, MA 02155 · Middlesex CountyPhone(781) 979-3050
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Brian Thomas Clark is affiliated with 7 sites of care and 3 medical groups
Dr. Clark's primary practice is LMH Health in Lawrence, Kansas, part of City of Lawrence, KS. Dr. Clark is also affiliated with Beth Israel Deaconess Medical Center. The medical group on file is Tufts Medical Center Community Care. Dmand AI also links Dr. Clark to 4 more hospitals, 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Thomas Clark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clark practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| LMH Health | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across City of Lawrence, KS and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Brian Thomas Clark is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Clark's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Clark's licenses on file in 2 states: Massachusetts and Connecticut.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
- Internal medicine, Connecticut
Gastroenterologists near Dr. Clark
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Brian Thomas Clark billed Medicare for 639 services in 2024
CMS data shows 639 Medicare services from Dr. Clark across 11 procedure codes in 2024, for 431 Medicare patients. Medicare paid $80,786 for them.
Dr. Clark's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 6182024: 32048%
- Office and hospital visits
- 2023: 5612024: 28649%
- Other services
- 2023: 732024: 3355%
Where Dr. Clark's Medicare services took place, 2024
- In an office50078%
- In a facility13922%
Dr. Clark compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Clark
- Massachusetts median
- Medicare services
- 639vs 51923% above
- Medicare patients
- 431vs 34326% above
- Part D claims
- 729vs 3002.4 times
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Clark'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Clark and other gastroenterologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Thomas Clark treated 431 Medicare patients in 2024, average age 73
CMS counts 431 Medicare patients who saw Dr. Clark in 2024. The largest group is 65 to 74, with 194 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Clark's median patient age at 57, with 52% women.
Dr. Clark's Medicare patients by age, 2024
Dr. Clark's Medicare patients by sex, 2024
- Women25058%
- Men18142%
Chronic conditions among Dr. Clark's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis44%
- Anxiety32%
- Mood disorders25%
- Chronic kidney disease23%
- Depression22%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Thomas Clark wrote 844 Medicare Part D claims in 2024
In 2024, Dr. Clark wrote 844 Medicare Part D claims for 343 patients. 91% of them were for generic drugs. CMS names the drug for 729 of them, across 10 drugs with 11 or more claims each, at $88,152 in total drug cost. In 2023, CMS named 1,244 claims across 15 drugs.
Dr. Clark's Part D claims by kind of drug, 2024
- Generic767 claims91%
- Brand-name77 claims9%
Dr. Clark'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2442024: 72941%
Drugs named by CMS: 10 in 2024, 15 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
Dr. Brian Thomas Clark ranks in the 92nd percentile for colonoscopy in Medicare
Dr. Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 186 procedures of colonoscopy by Dr. Clark, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Clark ranks in Medicare procedure volume
- Colonoscopy
- 92nd percentile186 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 85th percentile147 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Brian Thomas Clark received $643 in industry payments from 2016 to 2025
CMS Open Payments shows 21 general payments to Dr. Clark from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $174.
General payments to Dr. Clark by program year, 2016 to 2025
Companies that paid Dr. Clark the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Brian Thomas Clark graduated from Boston University School of Medicine
Dr. Clark graduated from Boston University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian Thomas Clark'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Brian Thomas Clark
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. Brian Thomas Clark's NPI number?
Dr. Brian Thomas Clark's NPI number is 1114193612. It was assigned on May 5, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Thomas Clark?
Dr. Brian Thomas Clark is a gastroenterologist in Medford, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Brian Thomas Clark practice?
Dr. Clark practices at 325 Maine Street, Lawrence, KS 66044. Dr. Clark also practices at 170 Governors Ave, Medford, MA 02155. Dr. Clark's primary practice is LMH Health in Lawrence, Kansas, part of City of Lawrence, KS. Dmand AI also links Dr. Clark to 4 hospitals, 2 medical groups and 1 group practice or clinic.
What is Dr. Brian Thomas Clark's office phone number?
The practice phone on file for Dr. Clark is (785) 505-5000.
What is Dr. Brian Thomas Clark's medical license number?
Dr. Clark holds Massachusetts license 262160, one of the licenses on file in 2 states.
Which states has Dr. Brian Thomas Clark been licensed in?
Dmand AI has state licenses on file for Dr. Clark in Massachusetts and Connecticut.
Which hospitals is Dr. Brian Thomas Clark affiliated with?
Dr. Clark practices at LMH Health in Lawrence, Kansas. Dr. Clark is also affiliated with Beth Israel Deaconess Medical Center. Dmand AI links Dr. Clark to 4 more hospitals.
What medical group is Dr. Brian Thomas Clark part of?
Dr. Clark is linked to Tufts Medical Center Community Care. Dmand AI links Dr. Clark to 2 more medical groups.
Does Dr. Brian Thomas Clark accept Medicare?
Yes. CMS data shows Dr. Clark billed Medicare for 639 services in 2024, and Dr. Clark accepts Medicare assignment.
How many Medicare patients does Dr. Brian Thomas Clark see?
CMS counts 431 Medicare patients who saw Dr. Clark in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Brian Thomas Clark bill to Medicare?
In 2024, Dr. Clark's most billed Medicare services were surgery: digestive system (45385), office visit, established patient (99214) and surgery: digestive system (43239).
Where did Dr. Brian Thomas Clark go to medical school?
Dr. Clark graduated from Boston University School of Medicine in 2008.
What drugs does Dr. Brian Thomas Clark prescribe most?
In 2024 Medicare Part D data, Dr. Clark's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.
Has Dr. Brian Thomas Clark received payments from drug or device companies?
CMS Open Payments shows $643 in general payments to Dr. Clark from 6 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Brian Thomas Clark been practicing?
Dr. Clark graduated from medical school in 2008, 18 years ago.
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