Quick answers
- Does Harry Marshak accept Medicare assignment?
- Yes. Medicare's clinician data says Harry Marshak 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 Harry Marshak see?
- In 2024, CMS data shows 572 Original Medicare patients and 6,957 services for Harry Marshak. This counts Original Medicare only and measures volume, not quality.
- What is Harry Marshak's NPI number?
- 1174560825. 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 Harry Marshak, 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 | 572 |
|---|---|
| Services billed to Medicare | 6,957 |
| Different services or procedures | 58 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, onabotulinumtoxina, 1 unit (J0585)5,267 services
- Photography of content of eyes (92285)323 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)300 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)258 services
- Injection of chemical for paralysis of nerve muscles on side of face (64612)103 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 pressure74%
- Arthritis59%
- Ischemic heart disease31%
- Chronic kidney disease27%
- Diabetes23%
Hospitals where Harry Marshak works
Medicare's Facility Affiliation Data lists Harry Marshak 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.
- Eisenhower Medical CenterRancho Mirage, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050573
Practice locations
Addresses where Harry Marshak is enrolled with Medicare (CMS data updated October 2, 2026).
- 74075 El Paseo, Suite D2Palm Desert, CA 92260 (760) 341‑2551
Specialties
Other ophthalmologists in Palm Desert
Clinicians with the same Medicare primary specialty in Palm Desert, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174560825 |
| 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