Dr. Jon D. Dorfman, MD
- Medicare services, 2024
- 719
- Medicare patients, 2024
- 386
- Hospital affiliations
- 5
- Industry payments
- $2,097
- Medical groups
- 2
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Dorfman'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. Jon D. Dorfman is a surgical critical care physician in Mendon, Massachusetts
Dr. Dorfman practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Dorfman's NPI, 1306837190, was assigned on November 2, 2005. Dr. Dorfman graduated from Johns Hopkins University School of Medicine in 2003. Dr. Dorfman holds Massachusetts license 227175.
- NPI
- 1306837190NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032362454
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jon D. Dorfman practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Dorfman's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jon D. Dorfman is affiliated with 6 sites of care and 2 medical groups
Dr. Dorfman's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Dorfman is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Dorfman to 4 more hospitals and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jon D. Dorfman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dorfman practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | Available with a free account |
| +5 more sites and 1 medical group | 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. Jon D. Dorfman is one of 53 surgical critical care physicians in Massachusetts
Surgical critical care is Dr. Dorfman's primary specialty in the NPI Registry, under taxonomy code 2086S0102X. Dr. Dorfman is licensed in Massachusetts.
Specialties and state licenses
- Surgical critical care, MassachusettsPrimary
Surgical critical care physicians near Dr. Dorfman
Counts of surgical critical care physicians 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. Jon D. Dorfman billed Medicare for 719 services in 2024
CMS data shows 719 Medicare services from Dr. Dorfman across 10 procedure codes in 2024, for 386 Medicare patients. Medicare paid $60,740 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Dorfman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5392024: 71933%
Dr. Dorfman compared with the Massachusetts median for surgical critical care physicians, 2024
- Dr. Dorfman
- Massachusetts median
- Medicare services
- 719vs 3232.2 times
- Medicare patients
- 386vs 1832.1 times
Medians across 55 surgical critical care physicians in Massachusetts with Dmand AI profiles that report each measure.
Dr. Dorfman'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. Dorfman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dorfman and other surgical critical care physicians in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jon D. Dorfman treated 386 Medicare patients in 2024, average age 76
CMS counts 386 Medicare patients who saw Dr. Dorfman in 2024. The largest group is 75 to 84, with 125 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Dorfman's median patient age at 76, with 48% women.
Dr. Dorfman's Medicare patients by age, 2024
Dr. Dorfman's Medicare patients by sex, 2024
- Women18849%
- Men19851%
Chronic conditions among Dr. Dorfman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Ischemic heart disease51%
- Mood disorders46%
- Atrial fibrillation45%
- Anxiety44%
- Chronic kidney disease42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dorfman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Jon D. Dorfman takes part in Medicare
Dr. Dorfman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
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. Jon D. Dorfman received $2,097 in industry payments from 2017 to 2025
CMS Open Payments shows 5 general payments to Dr. Dorfman from 4 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 72% of the total. Smith & Nephew, Inc. paid the most, $1,500.
General payments to Dr. Dorfman by program year, 2017 to 2025
General payments to Dr. Dorfman by kind, 2017 to 2025
- Consulting fees$1,50072%
- Travel and lodging$33116%
- Food and beverage$26613%
Companies that paid Dr. Dorfman the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jon D. Dorfman graduated from Johns Hopkins University School of Medicine
Dr. Dorfman graduated from Johns Hopkins University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jon D. Dorfman'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 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) |
| 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. Jon D. Dorfman
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. Jon D. Dorfman's NPI number?
Dr. Jon D. Dorfman's NPI number is 1306837190. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jon D. Dorfman?
Dr. Jon D. Dorfman is a surgical critical care physician in Mendon, Massachusetts. The primary specialty in the NPI Registry is Surgical Critical Care Physician (taxonomy code 2086S0102X).
Where does Dr. Jon D. Dorfman practice?
Dr. Dorfman practices at 55 North Ave, Mendon, MA 01756. Dr. Dorfman's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Dorfman to 4 hospitals and 1 medical group.
What is Dr. Jon D. Dorfman's office phone number?
The practice phone on file for Dr. Dorfman is (508) 334-1000.
What is Dr. Jon D. Dorfman's medical license number?
Dr. Dorfman holds Massachusetts license 227175.
Which hospitals is Dr. Jon D. Dorfman affiliated with?
Dr. Dorfman is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Dorfman to 4 more hospitals.
What medical group is Dr. Jon D. Dorfman part of?
Dr. Dorfman is linked to UMass Memorial Medical Group. Dmand AI links Dr. Dorfman to 1 more medical group.
Does Dr. Jon D. Dorfman accept Medicare?
Yes. CMS data shows Dr. Dorfman billed Medicare for 719 services in 2024, and Dr. Dorfman accepts Medicare assignment.
How many Medicare patients does Dr. Jon D. Dorfman see?
CMS counts 386 Medicare patients who saw Dr. Dorfman in 2024, with an average age of 76.
What services does Dr. Jon D. Dorfman bill to Medicare?
In 2024, Dr. Dorfman's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99231).
Show 3 more questionsShow fewer questions
Where did Dr. Jon D. Dorfman go to medical school?
Dr. Dorfman graduated from Johns Hopkins University School of Medicine in 2003.
Has Dr. Jon D. Dorfman received payments from drug or device companies?
CMS Open Payments shows $2,097 in general payments to Dr. Dorfman from 4 companies from 2017 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. Jon D. Dorfman been practicing?
Dr. Dorfman graduated from medical school in 2003, 23 years ago.
Selling to surgical critical care practices?
See surgical critical care physicians 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