Quick answers
- Does Les I. Siegel accept Medicare assignment?
- Yes. Medicare's clinician data says Les I. Siegel 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 Les I. Siegel see?
- In 2024, CMS data shows 877 Original Medicare patients and 6,162 services for Les I. Siegel. This counts Original Medicare only and measures volume, not quality.
- What is Les I. Siegel's NPI number?
- 1922083690. 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 Les I. Siegel, 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 | 877 |
|---|---|
| Services billed to Medicare | 6,162 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Exam of visual field with extended testing (92083)1,030 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)984 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)913 services
- Photography of the retina (92250)679 services
- Exam of the internal drainage system of eye (92020)657 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%
- Arthritis44%
- Diabetes36%
- Ischemic heart disease26%
- Chronic kidney disease24%
Practice locations
Addresses where Les I. Siegel is enrolled with Medicare (CMS data updated October 2, 2026).
- 29201 Telegraph Rd, Suite 301Southfield, MI 48034 (248) 356‑0098
Group practices
Medicare enrollment lists Les I. Siegel as a member of this group (CMS data updated October 2, 2026).
- Glaucoma Center of Michigan PC5 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Southfield
Clinicians with the same Medicare primary specialty in Southfield, MI — not a recommendation.
Other clinicians in Glaucoma Center of Michigan PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922083690 |
| 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