Quick answers
- Does Israel I. Alter accept Medicare assignment?
- Yes. Medicare's clinician data says Israel I. Alter 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 Israel I. Alter see?
- In 2024, CMS data shows 180 Original Medicare patients and 418 services for Israel I. Alter. This counts Original Medicare only and measures volume, not quality.
- What is Israel I. Alter's NPI number?
- 1912998790. 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 Israel I. Alter, 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 | 180 |
|---|---|
| Services billed to Medicare | 418 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Assessment of emotional or behavioral problems (96127)123 services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)89 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)58 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)48 services
- Pelvic exam (99459)29 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 pressure51%
- Arthritis48%
- Osteoporosis39%
- Anxiety24%
- Depression18%
Hospitals where Israel I. Alter works
Medicare's Facility Affiliation Data lists Israel I. Alter 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.
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 090005
Practice locations
Addresses where Israel I. Alter is enrolled with Medicare (CMS data updated October 2, 2026).
- 10215 Fernwood Rd, Suite 101Bethesda, MD 20817
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Bethesda
Clinicians with the same Medicare primary specialty in Bethesda, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912998790 |
| 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