Diane S. Messersmith, MD

Medicare activity in 2024

Official CMS public-use data for Diane S. Messersmith, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)565 services
2. Screening mammography (77067)405 services
3. Screening 3d breast mammography (77063)226 services
4. X-ray of chest, 1 view (71045)91 services
5. X-ray of chest, 2 views (71046)54 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol75%
• High blood pressure71%
• Arthritis45%
• Anxiety31%
• Depression25%
• Diabetes24%

Hospitals where Diane S. Messersmith works

Medicare's Facility Affiliation Data lists Diane S. Messersmith at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Day Kimball HospitalPutnam, CT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 070003
• Manchester Memorial HospitalManchester, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070027

Practice locations

Addresses where Diane S. Messersmith is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 100 Hazard Ave, Suite 100Enfield, CT 06082 (860) 289‑3375
• 115 W Silver StWestfield, MA 01085 (860) 291‑6572
• 1260 Silas Deane Hwy, Suite 104Wethersfield, CT 06109
• 14 Gramp Deane RdAssonet, MA 02702 (860) 289‑3375
• 26 Whispering LnNatick, MA 01760 (860) 289‑3375

Group practices

Medicare enrollment lists Diane S. Messersmith as a member of these groups (CMS data updated October 2, 2026).

• Jefferson Radiology PC114 clinicians in the group
• Connecticut Imaging Partners LLC104 clinicians in the group
• Farmington Imaging Center LLC71 clinicians in the group
• Tic LLC53 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in Connecticut →

Other radiologists in Enfield

Clinicians with the same Medicare primary specialty in Enfield, CT — not a recommendation.

• Yu G. Zeng, MD
• Mariam A. Viqar, DO
• Ayman Mithqal, MD
• David Passerini, MD
• Leslie R. Trien, MD
• Mary N. Tenenbaum, MD
• Gerard J. Muro, MD
• Michael T. Modic, MD

All radiologists in Enfield →

Other clinicians in Jefferson Radiology PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Anna M. Golja, MD
• Molly J. Mable
• William J. Glucksman, MD
• Jaehoon Bang, MD
• Ted S. Metzger, MD
• Timothy C. Huber, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians