Quick answers
- Does Lionel N. Chamberlain accept Medicare assignment?
- Yes. Medicare's clinician data says Lionel N. Chamberlain 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 Lionel N. Chamberlain see?
- In 2024, CMS data shows 247 Original Medicare patients and 741 services for Lionel N. Chamberlain. This counts Original Medicare only and measures volume, not quality.
- What is Lionel N. Chamberlain's NPI number?
- 1225039340. 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 Lionel N. Chamberlain, 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 | 247 |
|---|---|
| Services billed to Medicare | 741 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)221 services
- Photography of the retina (92250)188 services
- Imaging of retina (92134)139 services
- Established patient problem focused exam of visual system (92012)71 services
- Removal of cataract with insertion of prosthetic lens (66984)28 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%
- Arthritis42%
- Diabetes41%
- Chronic kidney disease28%
- Ischemic heart disease23%
Practice locations
Addresses where Lionel N. Chamberlain is enrolled with Medicare (CMS data updated October 2, 2026).
- 204 Iona StFairmont, NC 28340 (910) 628‑8316
Group practices
Medicare enrollment lists Lionel N. Chamberlain as a member of this group (CMS data updated October 2, 2026).
- Samuel D Johnson Od PLLC3 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in North Carolina
Clinicians with the same Medicare primary specialty in North Carolina — not a recommendation.
Other clinicians in Samuel D Johnson Od PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Southern College Of Optometry |
| Graduation year | 1967 (59 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225039340 |
| 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