Quick answers
- Does Anatole K. Kleiner accept Medicare assignment?
- Yes. Medicare's clinician data says Anatole K. Kleiner 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 Anatole K. Kleiner see?
- In 2024, CMS data shows 147 Original Medicare patients and 645 services for Anatole K. Kleiner. This counts Original Medicare only and measures volume, not quality.
- What is Anatole K. Kleiner's NPI number?
- 1144326133. 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 Anatole K. Kleiner, 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 | 147 |
|---|---|
| Services billed to Medicare | 645 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)166 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)122 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)23 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).
- Arthritis73%
- High blood pressure71%
- High cholesterol59%
- Chronic kidney disease27%
- Asthma26%
- Anxiety24%
Hospitals where Anatole K. Kleiner works
Medicare's Facility Affiliation Data lists Anatole K. Kleiner at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- F F Thompson HospitalCanandaigua, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330074
- Highland HospitalRochester, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330164
- Rochester General HospitalRochester, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330125
- Strong Memorial HospitalRochester, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330285
Practice locations
Addresses where Anatole K. Kleiner is enrolled with Medicare (CMS data updated October 2, 2026).
- 400 Red Creek DrRochester, NY 14623 (585) 486‑0901
- 400 Red Creek Dr, Suite 110Rochester, NY 14623 (585) 486‑0930
- 601 Elmwood AveRochester, NY 14642 (585) 275‑2100
Group practices
Medicare enrollment lists Anatole K. Kleiner as a member of these groups (CMS data updated October 2, 2026).
- University of Rochester973 clinicians in the group
- Allergy - Immunology - Rheumatology Clinical Group26 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Rheumatologyalso
Other allergist and immunologists in Rochester
Clinicians with the same Medicare primary specialty in Rochester, NY — not a recommendation.
Other clinicians in University of Rochester
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1144326133 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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