Quick answers
- Does Samir F. Shabshab accept Medicare assignment?
- Yes. Medicare's clinician data says Samir F. Shabshab 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 Samir F. Shabshab see?
- In 2024, CMS data shows 552 Original Medicare patients and 2,008 services for Samir F. Shabshab. This counts Original Medicare only and measures volume, not quality.
- What is Samir F. Shabshab's NPI number?
- 1669430823. 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 Samir F. Shabshab, 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 | 552 |
|---|---|
| Services billed to Medicare | 2,008 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)397 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)383 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)365 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)243 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)155 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 blood pressure75%
- High cholesterol75%
- Chronic kidney disease75%
- Diabetes67%
- Arthritis51%
- Ischemic heart disease45%
Hospitals where Samir F. Shabshab works
Medicare's Facility Affiliation Data lists Samir F. Shabshab 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.
- Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
- Inova Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490122
- MedStar Southern Maryland Hospital CenterClinton, MD · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 210062
Practice locations
Addresses where Samir F. Shabshab is enrolled with Medicare (CMS data updated October 2, 2026).
- 3261 Old Washington Rd, Suite 1020Waldorf, MD 20602 (301) 868‑4326
- 8101 Hinson Farm Rd, Suite 107Alexandria, VA 22306 (703) 360‑3100
- 8926 Woodyard Rd, Suite 602Clinton, MD 20735 (301) 868‑9414
Group practices
Medicare enrollment lists Samir F. Shabshab as a member of this group (CMS data updated October 2, 2026).
- Metropolitan Nephrology Associates PC10 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Waldorf
Clinicians with the same Medicare primary specialty in Waldorf, MD — not a recommendation.
Other clinicians in Metropolitan Nephrology Associates PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 (39 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) | 1669430823 |
| 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