Quick answers
- Which hospitals does Kostas Papamarkakis work at?
- Medicare's official clinician data lists Kostas Papamarkakis at 3 hospitals: Manchester Memorial Hospital, St Vincent Hospital and UMass Memorial Health - Harrington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Kostas Papamarkakis see patients?
- Medicare's clinician data lists 5 practice locations, including Avon, CT, Worcester, MA and Putnam, CT. Call before your visit to confirm the address.
- What is Kostas Papamarkakis's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Kostas Papamarkakis accept Medicare assignment?
- Yes. Medicare's clinician data says Kostas Papamarkakis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Kostas Papamarkakis?
- (860) 258-3480, as listed in official Medicare / NPI Registry data.
- What is Kostas Papamarkakis's NPI number?
- 1699160234. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kostas Papamarkakis works
Medicare's Facility Affiliation Data lists Kostas Papamarkakis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Manchester Memorial HospitalManchester, CT · Acute Care Hospital · CCN 070027
- St Vincent HospitalWorcester, MA · Acute Care Hospital · CCN 220176
- UMass Memorial Health - Harrington HospitalSouthbridge, MA · Acute Care Hospital · CCN 220019
Practice locations
Addresses where Kostas Papamarkakis is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Simsbury RdAvon, CT 06001 (860) 258‑3480
- 123 Summer St, 685nWorcester, MA 01608 (508) 363‑6008
- 320 Pomfret StPutnam, CT 06260 (508) 363‑6008
- 6 Fieldstone Cmns, Suite CTolland, CT 06084 (860) 648‑4480
- 71 Haynes StManchester, CT 06040 (860) 647‑6800
Group practices
Medicare enrollment lists Kostas Papamarkakis as a member of these groups (CMS data updated 2026-10-02).
- Starling Physicians, PLLC283 clinicians in the group
- Prospect Ct Medical Foundation Inc282 clinicians in the group
- Central Mass Nephrology5 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Avon
Clinicians with the same Medicare primary specialty in Avon, CT — not a recommendation.
Clinician information
| Medical school | Tufts University School Of Medicine |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699160234 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians