Dr. Michael Bessen, MD
- Part D claims, 2024
- 79
- Industry payments
- $586
- State licenses
- 2
- Year NPI issued
- 2021
- Practice address
- 800 Washington St, Boston, MA 02111
- Practice phone
- Call (801) 581-2121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Bessen'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 Bessen is a rheumatologist in Boston, Massachusetts
Dr. Bessen practices in Boston, Massachusetts.
Dr. Bessen's NPI, 1497332092, was assigned on March 28, 2021. Dr. Bessen holds Utah license 13872433-1205.
- NPI
- 1497332092NPI Registry (opens in a new tab)
- NPI enumeration date
- March 28, 2021
- NPI status
- Active
- Practice phone
- (801) 581-2121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Michael Bessen's practice address is in Boston, Massachusetts
Dr. Bessen's practice address in the NPI Registry is 800 Washington St, Boston, MA 02111, in Suffolk County. The practice phone is (801) 581-2121.
- NPI Registry address800 Washington St, Boston, MA 02111 · Suffolk CountyPhone(801) 581-2121
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Michael Bessen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bessen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Bessen's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Bessen is one of 275 rheumatologists in Massachusetts
Rheumatology is Dr. Bessen's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dmand AI has Dr. Bessen's licenses on file in 2 states: Utah and Maryland.
Specialties and state licenses
- Rheumatology, UtahPrimary
- Internal medicine, Maryland
Rheumatologists near Dr. Bessen
Counts of rheumatologists 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 Bessen's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Bessen's median patient age at 68, with 17% women.
Dr. Bessen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women17%
- Men83%
Source: Dmand AI Patient Panel Data
Dr. Michael Bessen wrote 79 Medicare Part D claims in 2024
In 2024, Dr. Bessen wrote 79 Medicare Part D claims for 29 patients. 65% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $8,186 in total drug cost.
Dr. Bessen's Part D claims by kind of drug, 2024
- Generic51 claims65%
- Brand-name and other28 claims35%
Dr. Bessen's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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
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Dr. Michael Bessen received $586 in industry payments from 2021 to 2025
CMS Open Payments shows 7 general payments to Dr. Bessen from 5 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 86% of the total. UCB, Inc. paid the most, $241.
General payments to Dr. Bessen by program year, 2021 to 2025
General payments to Dr. Bessen by kind, 2021 to 2025
- Food and beverage$50686%
- Education$8014%
Companies that paid Dr. Bessen the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Bessen'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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Bessen
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 Bessen's NPI number?
Dr. Michael Bessen's NPI number is 1497332092. It was assigned on March 28, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Bessen?
Dr. Michael Bessen is a rheumatologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Michael Bessen practice?
Dr. Bessen practices at 800 Washington St, Boston, MA 02111.
What is Dr. Michael Bessen's office phone number?
The practice phone on file for Dr. Bessen is (801) 581-2121.
What is Dr. Michael Bessen's medical license number?
Dr. Bessen holds Utah license 13872433-1205, one of the licenses on file in 2 states.
Which states has Dr. Michael Bessen been licensed in?
Dmand AI has state licenses on file for Dr. Bessen in Utah and Maryland.
What drugs does Dr. Michael Bessen prescribe most?
In 2023 Medicare Part D data, Dr. Bessen's most prescribed drugs by claims were Eliquis.
Has Dr. Michael Bessen received payments from drug or device companies?
CMS Open Payments shows $586 in general payments to Dr. Bessen from 5 companies from 2021 to 2025. The largest total came from UCB, Inc.
How long has Dr. Michael Bessen been practicing?
Dr. Bessen's NPI was assigned in 2021.
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