Quick answers
- Does Marissa J. Diescher accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa J. Diescher 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 Marissa J. Diescher see?
- In 2024, CMS data shows 233 Original Medicare patients and 442 services for Marissa J. Diescher. This counts Original Medicare only and measures volume, not quality.
- What is Marissa J. Diescher's NPI number?
- 1154084028. 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 Marissa J. Diescher, 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 | 233 |
|---|---|
| Services billed to Medicare | 442 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)118 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)59 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)37 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)35 services
- Urinalysis, manual test (81002)33 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 cholesterol71%
- High blood pressure56%
- Arthritis44%
- Anxiety26%
- Ischemic heart disease23%
- Osteoporosis22%
Practice locations
Addresses where Marissa J. Diescher is enrolled with Medicare (CMS data updated October 2, 2026).
- 696 Dutchess TpkePoughkeepsie, NY 12603 (845) 204‑9500
- 900 Route 376, Suite HWappingers Falls, NY 12590 (845) 204‑9260
Group practices
Medicare enrollment lists Marissa J. Diescher as a member of this group (CMS data updated October 2, 2026).
- Ashraf Medical Group PLLC32 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Poughkeepsie
Clinicians with the same Medicare primary specialty in Poughkeepsie, NY — not a recommendation.
Other clinicians in Ashraf Medical Group PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154084028 |
| 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