Quick answers
- Does Michael S. Glasser accept Medicare assignment?
- Yes. Medicare's clinician data says Michael S. Glasser 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 Michael S. Glasser see?
- In 2024, CMS data shows 322 Original Medicare patients and 2,514 services for Michael S. Glasser. This counts Original Medicare only and measures volume, not quality.
- What is Michael S. Glasser's NPI number?
- 1164421947. 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 Michael S. Glasser, 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 | 322 |
|---|---|
| Services billed to Medicare | 2,514 |
| Different services or procedures | 90 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)341 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)249 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)179 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)178 services
- Blood test, comprehensive group of blood chemicals (80053)172 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%
- High blood pressure64%
- Arthritis46%
- Ischemic heart disease29%
- Chronic kidney disease25%
- Diabetes23%
Hospitals where Michael S. Glasser works
Medicare's Facility Affiliation Data lists Michael S. Glasser 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.
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330214
Practice locations
Addresses where Michael S. Glasser is enrolled with Medicare (CMS data updated October 2, 2026).
- 317 E 34th StNew York, NY 10016 (212) 726‑7400
Group practices
Medicare enrollment lists Michael S. Glasser as a member of this group (CMS data updated October 2, 2026).
- Optum Medical Care PC1,010 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Other clinicians in Optum Medical Care PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1991 (35 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) | 1164421947 |
| 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