Quick answers
- Does Sandra M. Delistathis accept Medicare assignment?
- Medicare's clinician data says Sandra M. Delistathis may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Sandra M. Delistathis see?
- In 2024, CMS data shows 127 Original Medicare patients and 1,757 services for Sandra M. Delistathis. This counts Original Medicare only and measures volume, not quality.
- What is Sandra M. Delistathis's NPI number?
- 1023009974. 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 Sandra M. Delistathis, 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 | 127 |
|---|---|
| Services billed to Medicare | 1,757 |
| Different services or procedures | 51 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)153 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)120 services
- Blood test, comprehensive group of blood chemicals (80053)113 services
- Manual urinalysis test with examination using microscope, automated (81001)102 services
- Measurement c-reactive protein for detection of infection or inflammation (86140)93 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 cholesterol72%
- Arthritis45%
- High blood pressure43%
- Osteoporosis28%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)24%
- Ischemic heart disease15%
Hospitals where Sandra M. Delistathis works
Medicare's Facility Affiliation Data lists Sandra M. Delistathis 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.
- MedStar Georgetown University HospitalWashington, DC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 090004
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 090005
Practice locations
Addresses where Sandra M. Delistathis is enrolled with Medicare (CMS data updated October 2, 2026).
- 3301 New Mexico Ave NW, Suite 348Washington, DC 20016 (202) 362‑4467
Group practices
Medicare enrollment lists Sandra M. Delistathis as a member of this group (CMS data updated October 2, 2026).
- Foxhall Internists, PC8 clinicians in the group
Specialties
- Internal Medicineprimary
Find other Internal Medicine doctors in District of Columbia →
Other internal medicine doctors in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Other clinicians in Foxhall Internists, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1023009974 |
| 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