Inflamm Bowel Dis
Dr. Jason M. Hemming, MD
- Medicare services, 2024
- 1,740
- Medicare patients, 2024
- 734
- Part D claims, 2024
- 1,089
- Publications
- 1
- Hospital affiliations
- 5
- Practice address
- 399 Revolution Dr, Somerville, MA 02145
- Practice phone
- Call (978) 521-3200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mass General Brigham Community Physicians Inc.
Somerville, Massachusetts
Find Dr. Hemming's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jason M. Hemming is a gastroenterologist in Somerville, Massachusetts
Dr. Hemming practices at Mass General Brigham Community Physicians Inc. in Somerville, Massachusetts.
Dr. Hemming's NPI, 1184712010, was assigned on October 10, 2006. Dr. Hemming graduated from Tufts University School of Medicine in 2004. Dr. Hemming holds Massachusetts license 230212.
- NPI
- 1184712010NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628192507
- NPI enumeration date
- October 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (978) 521-3200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jason M. Hemming practices at Mass General Brigham Community Physicians Inc. in Somerville, Massachusetts
Dr. Hemming's primary practice is Mass General Brigham Community Physicians Inc., at 399 Revolution Dr, Somerville, MA 02145 in Middlesex County. The practice phone is (978) 521-3200.
- Mass General Brigham Community Physicians Inc.399 Revolution Dr, Somerville, MA 02145 · Middlesex CountyPhone(978) 521-3200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jason M. Hemming is affiliated with 9 sites of care and 5 medical groups
Dr. Hemming's primary practice is Mass General Brigham Community Physicians Inc. in Somerville, Massachusetts. Dr. Hemming is also affiliated with Salem Hospital. The medical group on file is Mass General Brigham Community Physicians Organization. Dmand AI also links Dr. Hemming to 4 more hospitals, 4 medical groups, 2 group practices and clinics and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jason M. Hemming's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hemming practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mass General Brigham Community Physicians Inc. | Available with a free account |
| +8 more sites and 4 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jason M. Hemming is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Hemming's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hemming is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Hemming
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. Jason M. Hemming billed Medicare for 1,740 services in 2024
CMS data shows 1,740 Medicare services from Dr. Hemming across 16 procedure codes in 2024, for 734 Medicare patients. Medicare paid $139,367 for them.
Dr. Hemming's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4322024: 58335%
- Lab and pathology
- 2023: 5002024: 5041%
- Office and hospital visits
- 2023: 5122024: 4728%
- Other services
- 2023: 762024: 181138%
Where Dr. Hemming's Medicare services took place, 2024
- In an office1,04960%
- In a facility69140%
Dr. Hemming compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Hemming
- Massachusetts median
- Medicare services
- 1,740vs 5193.4 times
- Medicare patients
- 734vs 3432.1 times
- Part D claims
- 954vs 3003.2 times
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Hemming'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. Hemming?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hemming and other gastroenterologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason M. Hemming treated 734 Medicare patients in 2024, average age 71
CMS counts 734 Medicare patients who saw Dr. Hemming in 2024. The largest group is 65 to 74, with 375 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 27% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hemming's median patient age at 65, with 55% women.
Dr. Hemming's Medicare patients by age, 2024
Dr. Hemming's Medicare patients by sex, 2024
- Women41156%
- Men32344%
Chronic conditions among Dr. Hemming's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis46%
- Anxiety35%
- Mood disorders30%
- Depression28%
- Diabetes26%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hemming's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jason M. Hemming wrote 1,089 Medicare Part D claims in 2024
In 2024, Dr. Hemming wrote 1,089 Medicare Part D claims for 280 patients. 82% of them were for generic drugs. CMS names the drug for 954 of them, across 21 drugs with 11 or more claims each, at $1,163,722 in total drug cost. In 2023, CMS named 837 claims across 19 drugs.
Dr. Hemming's Part D claims by kind of drug, 2024
- Generic897 claims82%
- Brand-name192 claims18%
Dr. Hemming'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. Hemming's Part D claims, 2024
- Antibiotics5%51 of 1,089 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: 8372024: 95414%
Drugs named by CMS: 21 in 2024, 19 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. Jason M. Hemming ranks in the 92nd percentile for colonoscopy in Medicare
Dr. Hemming accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hemming as offering telehealth. CMS counts 186 procedures of colonoscopy by Dr. Hemming, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Hemming ranks in Medicare procedure volume
- Colonoscopy
- 92nd percentile186 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 88th percentile172 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jason M. Hemming has 1 publication on record
Dmand AI links 1 paper to Dr. Hemming. Dr. Hemming's most frequent co-authors are Clara Abraham, MD, Judy Cho, MD and Taneisha Grant, MD.
Dr. Hemming's most frequent co-authors
Recent publications by Dr. Hemming
See who Dr. Hemming researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hemming works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jason M. Hemming received $177 in industry payments from 2016 to 2023
CMS Open Payments shows 10 general payments to Dr. Hemming from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 88% of the total. Abbvie Inc. paid the most, $103.
General payments to Dr. Hemming by program year, 2016 to 2023
General payments to Dr. Hemming by kind, 2016 to 2023
- Food and beverage$15588%
- Education$2212%
Companies that paid Dr. Hemming the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jason M. Hemming graduated from Tufts University School of Medicine
Dr. Hemming graduated from Tufts University School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jason M. Hemming'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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) |
| 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. Jason M. Hemming
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. Jason M. Hemming's NPI number?
Dr. Jason M. Hemming's NPI number is 1184712010. It was assigned on October 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason M. Hemming?
Dr. Jason M. Hemming is a gastroenterologist in Somerville, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Jason M. Hemming practice?
Dr. Hemming practices at 399 Revolution Dr, Somerville, MA 02145. Dr. Hemming's primary practice is Mass General Brigham Community Physicians Inc. in Somerville, Massachusetts. Dmand AI also links Dr. Hemming to 4 hospitals, 4 medical groups, 2 group practices and clinics and 1 ambulatory surgery center.
What is Dr. Jason M. Hemming's office phone number?
The practice phone on file for Dr. Hemming is (978) 521-3200.
What is Dr. Jason M. Hemming's medical license number?
Dr. Hemming holds Massachusetts license 230212.
Which hospitals is Dr. Jason M. Hemming affiliated with?
Dr. Hemming is affiliated with Salem Hospital. Dmand AI links Dr. Hemming to 4 more hospitals.
What medical group is Dr. Jason M. Hemming part of?
Dr. Hemming is linked to Mass General Brigham Community Physicians Organization. Dmand AI links Dr. Hemming to 4 more medical groups.
Does Dr. Jason M. Hemming accept Medicare?
Yes. CMS data shows Dr. Hemming billed Medicare for 1,740 services in 2024, and Dr. Hemming accepts Medicare assignment.
Does Dr. Jason M. Hemming offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hemming as offering telehealth services.
How many Medicare patients does Dr. Jason M. Hemming see?
CMS counts 734 Medicare patients who saw Dr. Hemming in 2024, with an average age of 71.
Show 7 more questionsShow fewer questions
What services does Dr. Jason M. Hemming bill to Medicare?
In 2024, Dr. Hemming's most billed Medicare services were lab and pathology test (88305), office visit, established patient (99214) and surgery: digestive system (45380).
Where did Dr. Jason M. Hemming go to medical school?
Dr. Hemming graduated from Tufts University School of Medicine in 2004.
What drugs does Dr. Jason M. Hemming prescribe most?
In 2024 Medicare Part D data, Dr. Hemming's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Famotidine.
Has Dr. Jason M. Hemming received payments from drug or device companies?
CMS Open Payments shows $177 in general payments to Dr. Hemming from 4 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Jason M. Hemming been practicing?
Dr. Hemming graduated from medical school in 2004, 22 years ago.
Does Dr. Jason M. Hemming do research?
Dmand AI links 1 publication to Dr. Hemming.
Who does Dr. Jason M. Hemming publish with?
Dr. Hemming's most frequent co-authors are Clara Abraham, MD (1 shared paper), Judy Cho, MD (1 shared paper) and Taneisha Grant, MD (1 shared paper).
Selling to gastroenterology practices?
See gastroenterologists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card