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Ophthalmology

Francis R. Lamy, DO

Sees patients in Derry, NH · New Hampshire

Summary

Dr. Francis R. Lamy, DO is an ophthalmologist at 43 A Birch St, Derry, NH 03038. Phone: (603) 434-3937. Accepts Medicare assignment. In 2024, Francis R. Lamy had 760 Original Medicare patients and 4,634 services. NPI 1700858941. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 43 A Birch St, Derry, NH 03038 · Directions
  • Phone: (603) 434‑3937
  • Medicare: Accepts Medicare assignment
  • Group practice: Nutfield Ophthalmology PC
  • Medical school: Philadelphia College Of Osteopathic Medicine · graduated 1990 (36 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Francis R. Lamy, 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 Francis R. Lamy accept Medicare assignment?
Yes. Medicare's clinician data says Francis R. Lamy 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 Francis R. Lamy see?
In 2024, CMS data shows 760 Original Medicare patients and 4,634 services for Francis R. Lamy. This counts Original Medicare only and measures volume, not quality.
What is Francis R. Lamy's NPI number?
1700858941. 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 Francis R. Lamy, 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 patients760
Services billed to Medicare4,634
Different services or procedures45
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Removal of cataract with insertion of prosthetic lens (66984)1,256 services
  2. Established patient complete exam of visual system (92014)793 services
  3. Imaging of retina (92134)579 services
  4. Established patient problem focused exam of visual system (92012)397 services
  5. Measurement of corneal curvature and depth of eye (92136)388 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 cholesterol75%
  • High blood pressure73%
  • Arthritis42%
  • Diabetes26%
  • Anxiety23%
  • Chronic kidney disease21%

Practice locations

Addresses where Francis R. Lamy is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Francis R. Lamy as a member of this group (CMS data updated October 2, 2026).

  • Nutfield Ophthalmology PC5 clinicians in the group

Specialties

Find other Ophthalmology doctors in New Hampshire →

Other ophthalmologists in New Hampshire

Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.

All ophthalmologists in New Hampshire →

Other clinicians in Nutfield Ophthalmology PC

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

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700858941
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians