Dr. Michael E. Mendelsohn, MD
- Hospital affiliations
- 1
- Industry payments
- $3.2M
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mendelsohn'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. Michael E. Mendelsohn is an internist in Boston, Massachusetts
Dr. Mendelsohn practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Mendelsohn's NPI, 1851435549, was assigned on February 16, 2007. Dr. Mendelsohn graduated from Harvard Medical School in 1982. Dr. Mendelsohn holds Massachusetts license 52533.
- NPI
- 1851435549NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749227155
- NPI enumeration date
- February 16, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 636-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael E. Mendelsohn practices at Tufts Medical Center in Boston, Massachusetts
Dr. Mendelsohn's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Michael E. Mendelsohn is affiliated with 2 sites of care and 1 medical group
Dr. Mendelsohn's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. The medical group on file is Cardiovascular Center at Tufts Medical Center. Dmand AI also links Dr. Mendelsohn to 1 more imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael E. Mendelsohn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mendelsohn practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +1 more affiliated site | 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 Tufts Medicine and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael E. Mendelsohn is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Mendelsohn's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mendelsohn is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Mendelsohn
Counts of internists 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. Michael E. Mendelsohn's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Mendelsohn's median patient age at 69, with 38% women.
Dr. Mendelsohn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women38%
- Men59%
Source: Dmand AI Patient Panel Data
How Dr. Michael E. Mendelsohn takes part in Medicare
Dr. Mendelsohn 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)
Dr. Michael E. Mendelsohn received $3,231,603 in industry payments from 2016 to 2024
CMS Open Payments shows 278 general payments to Dr. Mendelsohn from 6 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 98% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $2,865,267. It also lists 2 research payments totaling $2,277,447 in 2018.
General payments to Dr. Mendelsohn by program year, 2016 to 2024
General payments to Dr. Mendelsohn by kind, 2016 to 2024
- Consulting fees$3,169,45698%
- Travel and lodging$57,5532%
- Food and beverage$4,5940%
Companies that paid Dr. Mendelsohn the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael E. Mendelsohn graduated from Harvard Medical School
Dr. Mendelsohn graduated from Harvard Medical School in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael E. Mendelsohn'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Michael E. Mendelsohn
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. Michael E. Mendelsohn's NPI number?
Dr. Michael E. Mendelsohn's NPI number is 1851435549. It was assigned on February 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael E. Mendelsohn?
Dr. Michael E. Mendelsohn is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael E. Mendelsohn practice?
Dr. Mendelsohn practices at 800 Washington Street, Boston, MA 02111. Dr. Mendelsohn's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Mendelsohn to 1 imaging center.
What is Dr. Michael E. Mendelsohn's office phone number?
The practice phone on file for Dr. Mendelsohn is (617) 636-5000.
What is Dr. Michael E. Mendelsohn's medical license number?
Dr. Mendelsohn holds Massachusetts license 52533.
Which hospitals is Dr. Michael E. Mendelsohn affiliated with?
Dr. Mendelsohn practices at Tufts Medical Center in Boston, Massachusetts.
What medical group is Dr. Michael E. Mendelsohn part of?
Dr. Mendelsohn is linked to Cardiovascular Center at Tufts Medical Center.
Does Dr. Michael E. Mendelsohn accept Medicare?
Yes. CMS lists Dr. Mendelsohn as accepting Medicare assignment.
Where did Dr. Michael E. Mendelsohn go to medical school?
Dr. Mendelsohn graduated from Harvard Medical School in 1982.
Has Dr. Michael E. Mendelsohn received payments from drug or device companies?
CMS Open Payments shows $3,231,603 in general payments to Dr. Mendelsohn from 6 companies from 2016 to 2024. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Michael E. Mendelsohn been practicing?
Dr. Mendelsohn graduated from medical school in 1982, 44 years ago.
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