Dr. Diane S. Messersmith, MD
- Medicare services, 2024
- 1,602
- Medicare patients, 2024
- 859
- Hospital affiliations
- 3
- Industry payments
- $118
- Medical groups
- 7
- Practice address
- 2701 Tamarack Ave, South Windsor, CT 06074
- Practice phone
- Call (860) 289-3375
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jefferson Radiology
South Windsor, Connecticut
Find Dr. Messersmith'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. Diane S. Messersmith is a diagnostic radiologist in South Windsor, Connecticut
Dr. Messersmith practices at Jefferson Radiology in South Windsor, Connecticut.
Dr. Messersmith's NPI, 1841239035, was assigned on June 5, 2006. Dr. Messersmith graduated from University of Massachusetts Medical School in 1993. Dr. Messersmith holds Massachusetts license 152677.
- NPI
- 1841239035NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648219303
- NPI enumeration date
- June 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 289-3375
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Diane S. Messersmith practices at Jefferson Radiology in South Windsor, Connecticut
Dr. Messersmith's primary practice is Jefferson Radiology, at 2701 Tamarack Ave, South Windsor, CT 06074 in Capitol County. The practice phone is (860) 289-3375.
- Jefferson Radiology2701 Tamarack Ave, South Windsor, CT 06074 · Capitol CountyPhone(860) 289-3375
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Diane S. Messersmith is affiliated with 8 sites of care and 7 medical groups
Dr. Messersmith's primary practice is Jefferson Radiology in South Windsor, Connecticut. Dr. Messersmith is also affiliated with Griffin Hospital. The medical group on file is Jefferson Radiology. Dmand AI also links Dr. Messersmith to 2 more hospitals, 6 medical groups and 4 group practices and clinics, 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. Diane S. Messersmith's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Messersmith practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Radiology | Available with a free account |
| +7 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diane S. Messersmith is one of 472 diagnostic radiologists in Connecticut
Diagnostic radiology is Dr. Messersmith's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Messersmith is licensed in Massachusetts.
Specialties and state licenses
- Diagnostic radiology, MassachusettsPrimary
Diagnostic radiologists near Dr. Messersmith
Counts of diagnostic radiologists 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. Diane S. Messersmith billed Medicare for 1,602 services in 2024
CMS data shows 1,602 Medicare services from Dr. Messersmith across 16 procedure codes in 2024, for 859 Medicare patients. Medicare paid $67,943 for them.
Dr. Messersmith's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,5032024: 99560%
- Other services
- 2023: 3,4702024: 60783%
- Tests and treatments
- 2023: 582024: 0100%
Where Dr. Messersmith's Medicare services took place, 2024
- In an office1,11570%
- In a facility48730%
Dr. Messersmith compared with the Connecticut median for diagnostic radiologists, 2024
- Dr. Messersmith
- Connecticut median
- Medicare services
- 1,602vs 2,06322% below
- Medicare patients
- 859vs 1,26232% below
Medians across 462 diagnostic radiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Messersmith'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Messersmith and other diagnostic radiologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Diane S. Messersmith treated 859 Medicare patients in 2024, average age 73
CMS counts 859 Medicare patients who saw Dr. Messersmith in 2024. The largest group is 65 to 74, with 364 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Messersmith's median patient age at 69, with 94% women.
Dr. Messersmith's Medicare patients by age, 2024
Dr. Messersmith's Medicare patients by sex, 2024
- Women70882%
- Men15118%
Chronic conditions among Dr. Messersmith's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis45%
- Anxiety31%
- Mood disorders29%
- Depression25%
- Diabetes24%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Messersmith'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
- Women94%
- Men5%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Diane S. Messersmith takes part in Medicare
Dr. Messersmith 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)
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Dr. Diane S. Messersmith received $118 in industry payments from 2016 to 2019
CMS Open Payments shows 5 general payments to Dr. Messersmith from 4 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $40.
General payments to Dr. Messersmith by program year, 2016 to 2019
Companies that paid Dr. Messersmith the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diane S. Messersmith graduated from University of Massachusetts Medical School
Dr. Messersmith graduated from University of Massachusetts Medical School in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Diane S. Messersmith'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) |
| 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. Diane S. Messersmith
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. Diane S. Messersmith's NPI number?
Dr. Diane S. Messersmith's NPI number is 1841239035. It was assigned on June 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diane S. Messersmith?
Dr. Diane S. Messersmith is a diagnostic radiologist in South Windsor, Connecticut. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Diane S. Messersmith practice?
Dr. Messersmith practices at 2701 Tamarack Ave, South Windsor, CT 06074. Dr. Messersmith's primary practice is Jefferson Radiology in South Windsor, Connecticut. Dmand AI also links Dr. Messersmith to 2 hospitals, 6 medical groups and 4 group practices and clinics.
What is Dr. Diane S. Messersmith's office phone number?
The practice phone on file for Dr. Messersmith is (860) 289-3375.
What is Dr. Diane S. Messersmith's medical license number?
Dr. Messersmith holds Massachusetts license 152677.
Which hospitals is Dr. Diane S. Messersmith affiliated with?
Dr. Messersmith is affiliated with Griffin Hospital. Dmand AI links Dr. Messersmith to 2 more hospitals.
What medical group is Dr. Diane S. Messersmith part of?
Dr. Messersmith is linked to Jefferson Radiology. Dmand AI links Dr. Messersmith to 6 more medical groups.
Does Dr. Diane S. Messersmith accept Medicare?
Yes. CMS data shows Dr. Messersmith billed Medicare for 1,602 services in 2024, and Dr. Messersmith accepts Medicare assignment.
How many Medicare patients does Dr. Diane S. Messersmith see?
CMS counts 859 Medicare patients who saw Dr. Messersmith in 2024, with an average age of 73.
What services does Dr. Diane S. Messersmith bill to Medicare?
In 2024, Dr. Messersmith's most billed Medicare services were medicare temporary code (Q9967), radiation oncology (77067) and radiation oncology (77063).
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Where did Dr. Diane S. Messersmith go to medical school?
Dr. Messersmith graduated from University of Massachusetts Medical School in 1993.
Has Dr. Diane S. Messersmith received payments from drug or device companies?
CMS Open Payments shows $118 in general payments to Dr. Messersmith from 4 companies from 2016 to 2019. The largest total came from C. R. Bard, Inc. & Subsidiaries.
How long has Dr. Diane S. Messersmith been practicing?
Dr. Messersmith graduated from medical school in 1993, 33 years ago.
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