Shaun M. Najarian, DO

Medicare activity in 2024

Official CMS public-use data for Shaun M. Najarian, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)440 services
2. Insertion of needle into vein for collection of blood sample (36415)428 services
3. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)236 services
4. Annual depression screening, 5 to 15 minutes (G0444)115 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)94 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 blood pressure75%
• High cholesterol75%
• Arthritis53%
• Ischemic heart disease38%
• Diabetes36%
• Anxiety36%

Hospitals where Shaun M. Najarian works

Medicare's Facility Affiliation Data lists Shaun M. Najarian 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.

• Bridgeport HospitalBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070010
• Griffin HospitalDerby, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070031
• Yale-New Haven HospitalNew Haven, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070022

Practice locations

Addresses where Shaun M. Najarian is enrolled with Medicare (CMS data updated October 2, 2026).

• 110 Commerce DrShelton, CT 06484 (203) 929‑7331
• 130 Division StDerby, CT 06418 (203) 732‑1330

Group practices

Medicare enrollment lists Shaun M. Najarian as a member of this group (CMS data updated October 2, 2026).

• Griffin Faculty Physicians Inc134 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Shelton

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

• Nelson T. Chao, MD
• Piotr W. Baginski, MD
• Francis P. Alcedo, MD
• Bardia Asgari, MD
• Scott Herman, MD
• Kaberi Chanda, MD
• Alma R. Garcia, MD
• Marcus A. Mayus, MD

All internal medicine doctors in Shelton →

Other clinicians in Griffin Faculty Physicians Inc

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

• Leon M. Garcia, PA
• Michael Lee, MD
• Roman Spivak
• Katherine Roarty
• Vivek Dhungana, MD
• Veronica A. Balbuena Hurtado, 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