Dr. Jeffrey I. Gassman, MD
- Medicare services, 2024
- 470
- Medicare patients, 2024
- 246
- Part D claims, 2024
- 322
- MIPS score, 2024
- 89
- Hospital affiliations
- 1
- Practice address
- 680 Center Street, Brockton, MA 02302
- Practice phone
- Call (508) 941-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gassman'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. Jeffrey I. Gassman is an orthopedic surgeon in Brockton, Massachusetts
Dr. Gassman practices at Signature Healthcare Brockton Hospital in Brockton, Massachusetts, part of Signature Healthcare.
Dr. Gassman's NPI, 1093736910, was assigned on July 23, 2006. Dr. Gassman graduated from University of Vermont College of Medicine in 1979. Dr. Gassman holds Massachusetts license 52181.
- NPI
- 1093736910NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254386790
- NPI enumeration date
- July 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 941-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey I. Gassman practices at Signature Healthcare Brockton Hospital in Brockton, Massachusetts
Dr. Gassman's primary practice is Signature Healthcare Brockton Hospital, at 680 Center Street, Brockton, MA 02302 in Plymouth County. The practice phone is (508) 941-7000.
- Signature Healthcare Brockton Hospital680 Center Street, Brockton, MA 02302 · Plymouth CountyPhone(508) 941-7000
Source: Dmand AI Affiliation Data
Dr. Jeffrey I. Gassman is affiliated with 5 sites of care and 1 medical group
Dr. Gassman's primary practice is Signature Healthcare Brockton Hospital in Brockton, Massachusetts, part of Signature Healthcare. The medical group on file is Signature Medical Group. Dmand AI also links Dr. Gassman to 1 more group practice or clinic, 1 home health agency, 1 imaging center and 1 urgent care center, 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. Jeffrey I. Gassman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gassman practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Signature Healthcare Brockton Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jeffrey I. Gassman is one of 593 orthopedic surgeons in Massachusetts
Orthopaedic surgery is Dr. Gassman's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Gassman is licensed in Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, MassachusettsPrimary
Orthopedic surgeons near Dr. Gassman
Counts of orthopedic surgeons 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. Jeffrey I. Gassman billed Medicare for 470 services in 2024
CMS data shows 470 Medicare services from Dr. Gassman across 6 procedure codes in 2024, for 246 Medicare patients. Medicare paid $23,480 for them. Every service was in an office.
Dr. Gassman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3742024: 3516%
- Drugs given in the office
- 2023: 802024: 791%
- Surgery
- 2023: 462024: 4013%
Dr. Gassman compared with the Massachusetts median for orthopedic surgeons, 2024
- Dr. Gassman
- Massachusetts median
- Medicare services
- 470vs 67230% below
- Medicare patients
- 246vs 30219% below
- Part D claims
- 261vs 505.2 times
Medians across 543 orthopedic surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Gassman'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey I. Gassman treated 246 Medicare patients in 2024, average age 73
CMS counts 246 Medicare patients who saw Dr. Gassman in 2024. The largest group is 65 to 74, with 111 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gassman's median patient age at 61, with 65% women.
Dr. Gassman's Medicare patients by age, 2024
Dr. Gassman's Medicare patients by sex, 2024
- Women14961%
- Men9739%
Chronic conditions among Dr. Gassman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Anxiety31%
- Diabetes30%
- Mood disorders30%
- Depression26%
- Chronic kidney disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gassman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women65%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey I. Gassman wrote 322 Medicare Part D claims in 2024
In 2024, Dr. Gassman wrote 322 Medicare Part D claims for 131 patients. 99% of them were for generic drugs. CMS names the drug for 261 of them, across 7 drugs with 11 or more claims each, at $3,642 in total drug cost. In 2023, CMS named 423 claims across 8 drugs.
Dr. Gassman's Part D claims by kind of drug, 2024
- Generic320 claims99%
- Brand-name and other2 claims1%
Dr. Gassman'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. Gassman's Part D claims, 2024
- Opioids10%31 of 322 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: 4232024: 26138%
Drugs named by CMS: 7 in 2024, 8 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. Jeffrey I. Gassman scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Gassman for performance year 2024, reported as part of a group. Dr. Gassman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of knee replacement by Dr. Gassman, more than 47% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Gassman's MIPS scores, performance year 2024
- 89of 100Final score
- 70.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Gassman ranks in Medicare procedure volume
- Knee replacement
- 47th percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Upper limb (arm) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jeffrey I. Gassman received $93 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Gassman from 2 drug and device companies in 2017. Food and beverage make up the largest share, 100% of the total. DePuy Synthes Sales Inc. paid the most, $61.
Companies that paid Dr. Gassman the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeffrey I. Gassman graduated from University of Vermont College of Medicine
Dr. Gassman graduated from University of Vermont College of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jeffrey I. Gassman'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)Clinician Public Reporting: Overall MIPS Performance (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. Jeffrey I. Gassman
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. Jeffrey I. Gassman's NPI number?
Dr. Jeffrey I. Gassman's NPI number is 1093736910. It was assigned on July 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey I. Gassman?
Dr. Jeffrey I. Gassman is an orthopedic surgeon in Brockton, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Jeffrey I. Gassman practice?
Dr. Gassman practices at 680 Center Street, Brockton, MA 02302. Dr. Gassman's primary practice is Signature Healthcare Brockton Hospital in Brockton, Massachusetts, part of Signature Healthcare. Dmand AI also links Dr. Gassman to 1 group practice or clinic, 1 home health agency, 1 imaging center and 1 urgent care center.
What is Dr. Jeffrey I. Gassman's office phone number?
The practice phone on file for Dr. Gassman is (508) 941-7000.
What is Dr. Jeffrey I. Gassman's medical license number?
Dr. Gassman holds Massachusetts license 52181.
Which hospitals is Dr. Jeffrey I. Gassman affiliated with?
Dr. Gassman practices at Signature Healthcare Brockton Hospital in Brockton, Massachusetts.
What medical group is Dr. Jeffrey I. Gassman part of?
Dr. Gassman is linked to Signature Medical Group.
Does Dr. Jeffrey I. Gassman accept Medicare?
Yes. CMS data shows Dr. Gassman billed Medicare for 470 services in 2024, and Dr. Gassman accepts Medicare assignment.
What is Dr. Jeffrey I. Gassman's MIPS score?
Dr. Gassman's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jeffrey I. Gassman see?
CMS counts 246 Medicare patients who saw Dr. Gassman in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Jeffrey I. Gassman bill to Medicare?
In 2024, Dr. Gassman's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99212) and injected or infused drug (J0702).
Where did Dr. Jeffrey I. Gassman go to medical school?
Dr. Gassman graduated from University of Vermont College of Medicine in 1979.
What drugs does Dr. Jeffrey I. Gassman prescribe most?
In 2024 Medicare Part D data, Dr. Gassman's most prescribed drugs by claims were Diclofenac Sodium, Nabumetone and Meloxicam.
Has Dr. Jeffrey I. Gassman received payments from drug or device companies?
CMS Open Payments shows $93 in general payments to Dr. Gassman from 2 companies from 2017 to 2017. The largest total came from DePuy Synthes Sales Inc.
How long has Dr. Jeffrey I. Gassman been practicing?
Dr. Gassman graduated from medical school in 1979, 47 years ago.
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