Quick answers
- Does Linda J. Greff accept Medicare assignment?
- Yes. Medicare's clinician data says Linda J. Greff 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 Linda J. Greff see?
- In 2024, CMS data shows 391 Original Medicare patients and 1,367 services for Linda J. Greff. This counts Original Medicare only and measures volume, not quality.
- What is Linda J. Greff's NPI number?
- 1538108923. 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 Linda J. Greff, 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 | 391 |
|---|---|
| Services billed to Medicare | 1,367 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)559 services
- Exam of visual field with extended testing (92083)199 services
- Imaging of optic nerve (92133)142 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)112 services
- Exam of the internal drainage system of eye (92020)102 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 cholesterol73%
- High blood pressure72%
- Arthritis42%
- Diabetes30%
- Ischemic heart disease22%
- Chronic kidney disease21%
Practice locations
Addresses where Linda J. Greff is enrolled with Medicare (CMS data updated October 2, 2026).
- 1945 Cei DrBlue Ash, OH 45242
Group practices
Medicare enrollment lists Linda J. Greff as a member of this group (CMS data updated October 2, 2026).
- Cei Physicians PSC, LLC158 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Blue Ash
Clinicians with the same Medicare primary specialty in Blue Ash, OH — not a recommendation.
Other clinicians in Cei Physicians PSC, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538108923 |
| 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