Quick answers
- Does Paul G. Degregorio accept Medicare assignment?
- Yes. Medicare's clinician data says Paul G. Degregorio 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 Paul G. Degregorio see?
- In 2024, CMS data shows 685 Original Medicare patients and 27,491 services for Paul G. Degregorio. This counts Original Medicare only and measures volume, not quality.
- What is Paul G. Degregorio's NPI number?
- 1508850827. 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 Paul G. Degregorio, 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 patients | 685 |
|---|---|
| Services billed to Medicare | 27,491 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)21,720 services
- Imaging of retina (92134)1,460 services
- Injection of drug into eye (67028)1,234 services
- Injection, aflibercept, 1 mg (J0178)1,076 services
- Injection, ranibizumab, 0.1 mg (J2778)728 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 pressure73%
- High cholesterol69%
- Arthritis39%
- Diabetes37%
- Ischemic heart disease23%
- Atrial fibrillation21%
Practice locations
Addresses where Paul G. Degregorio is enrolled with Medicare (CMS data updated October 2, 2026).
- 25 Buttrick Rd, Suite C3Londonderry, NH 03053 (603) 669‑3925
- 764 2nd StManchester, NH 03102 (603) 669‑3925
Group practices
Medicare enrollment lists Paul G. Degregorio as a member of this group (CMS data updated October 2, 2026).
- NH Eye Associates PLLC12 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Londonderry
Clinicians with the same Medicare primary specialty in Londonderry, NH — not a recommendation.
Other clinicians in NH Eye Associates PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1508850827 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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