Quick answers
- Does Joshua Tannenbaum accept Medicare assignment?
- Yes. Medicare's clinician data says Joshua Tannenbaum 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 Joshua Tannenbaum see?
- In 2024, CMS data shows 62 Original Medicare patients and 328 services for Joshua Tannenbaum. This counts Original Medicare only and measures volume, not quality.
- What is Joshua Tannenbaum's NPI number?
- 1649270836. 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 Joshua Tannenbaum, 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 | 62 |
|---|---|
| Services billed to Medicare | 328 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)105 services
- Insertion of needle into vein for collection of blood sample (36415)85 services
- Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)47 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)33 services
- Administration of influenza virus vaccine (G0008)16 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%
- Diabetes75%
- High blood pressure68%
- Arthritis50%
- Ischemic heart disease35%
- Chronic kidney disease27%
Practice locations
Addresses where Joshua Tannenbaum is enrolled with Medicare (CMS data updated October 2, 2026).
- 45 E 85th St, Suite 1eNew York, NY 10028 (212) 737‑4278
Specialties
- Internal Medicineprimary
- Endocrinologyalso
Other internal medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 1977 (49 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649270836 |
| 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