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Physician Assistant

John D. D'Agata Jr., PA

Works at hospitals in Hartford, CT · Connecticut

Summary

John D. D'Agata Jr., PA is a physician assistant at 1000 Asylum Ave, Hartford, CT 06105. Phone: (860) 525-4469. Accepts Medicare assignment. In 2024, John D. D'Agata Jr. had 70 Original Medicare patients and 333 services. NPI 1255870986. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about John D. D'Agata Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does John D. D'Agata Jr. accept Medicare assignment?
Yes. Medicare's clinician data says John D. D'Agata Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does John D. D'Agata Jr. see?
In 2024, CMS data shows 70 Original Medicare patients and 333 services for John D. D'Agata Jr.. This counts Original Medicare only and measures volume, not quality.
What is John D. D'Agata Jr.'s NPI number?
1255870986. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for John D. D'Agata Jr., 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.

Original Medicare patients70
Services billed to Medicare333
Different services or procedures20
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)17 services
  2. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)11 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%
  • Arthritis75%
  • Anxiety46%
  • Ischemic heart disease36%
  • Atrial fibrillation33%

Hospitals where John D. D'Agata Jr. works

Medicare's Facility Affiliation Data lists John D. D'Agata Jr. 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.

Practice locations

Addresses where John D. D'Agata Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John D. D'Agata Jr. as a member of these groups (CMS data updated October 2, 2026).

  • Trinity Health of New England Provider Network Organization Inc653 clinicians in the group
  • Orthopedic Surgical Partners, P.C.24 clinicians in the group
  • Orthopaedic Sports Specialists PC9 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Connecticut →

Other physician assistants in Hartford

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

All physician assistants in Hartford →

Other clinicians in Trinity Health of New England Provider Network Organization Inc

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

Clinician information

CredentialPA
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255870986
CorrectionsReport an error or suggest an update →

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