Quick answers
- Which hospitals does Daniel Underhill work at?
- Medicare's official clinician data lists Daniel Underhill at 2 hospitals: Griffin Hospital and Middlesex Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel Underhill see patients?
- Medicare's clinician data lists 4 practice locations, including Derby, CT, Marlborough, CT and Middletown, CT. Call before your visit to confirm the address.
- What is Daniel Underhill's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Daniel Underhill accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel Underhill 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 Daniel Underhill?
- (860) 358-2850, as listed in official Medicare / NPI Registry data.
- What is Daniel Underhill's NPI number?
- 1083251490. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel Underhill works
Medicare's Facility Affiliation Data lists Daniel Underhill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Griffin HospitalDerby, CT · Acute Care Hospital · CCN 070031
- Middlesex HospitalMiddletown, CT · Acute Care Hospital · CCN 070020
Practice locations
Addresses where Daniel Underhill is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 Division StDerby, CT 06418
- 14 Jones Hollow Rd, Suite 2Marlborough, CT 06447 (860) 358‑2850
- 28 Crescent StMiddletown, CT 06457
- 540 Saybrook RdMiddletown, CT 06457 (860) 358‑5120
Group practices
Medicare enrollment lists Daniel Underhill as a member of these groups (CMS data updated 2026-10-02).
- MHS Primary Care, Inc.180 clinicians in the group
- Griffin Faculty Physicians Inc134 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Derby
Clinicians with the same Medicare primary specialty in Derby, CT — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083251490 |
| 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