Quick answers
- Does Shawn Marhamati accept Medicare assignment?
- Yes. Medicare's clinician data says Shawn Marhamati 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 Shawn Marhamati see?
- In 2024, CMS data shows 709 Original Medicare patients and 5,617 services for Shawn Marhamati. This counts Original Medicare only and measures volume, not quality.
- What is Shawn Marhamati's NPI number?
- 1114312808. 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 Shawn Marhamati, 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 | 709 |
|---|---|
| Services billed to Medicare | 5,617 |
| Different services or procedures | 89 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)766 services
- Leuprolide injectable, camcevi, 1 mg (J1952)588 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)521 services
- Ultrasound measurement of bladder capacity after voiding (51798)230 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)213 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%
- Arthritis40%
- Diabetes35%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)35%
- Ischemic heart disease31%
Hospitals where Shawn Marhamati works
Medicare's Facility Affiliation Data lists Shawn Marhamati 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.
- Fauquier HospitalWarrenton, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490023
- Inova Alexandria HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490040
- Inova Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490122
- Mary Washington HospitalFredericksburg, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490022
- Sentara Northern Virginia Medical CenterWoodbridge, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490113
Practice locations
Addresses where Shawn Marhamati is enrolled with Medicare (CMS data updated October 2, 2026).
- 1800 N Beauregard St, Suite 3Alexandria, VA 22311 (703) 680‑2111
- 1860 Town Ctr Dr, Suite 150Reston, VA 20190 (703) 480‑0220
- 2296 Opitz Blvd, Suite 350Woodbridge, VA 22191 (703) 680‑2111
- 3700 Joseph Siewick Dr, Suite 300Fairfax, VA 22033 (703) 680‑2111
- 6602 W Broad St, Suite BRichmond, VA 23230 (804) 285‑8206
Group practices
Medicare enrollment lists Shawn Marhamati as a member of these groups (CMS data updated October 2, 2026).
- Gastrointestinal Specialists LLC81 clinicians in the group
- Potomac Urology Center, LLC16 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Alexandria
Clinicians with the same Medicare primary specialty in Alexandria, VA — not a recommendation.
Other clinicians in Gastrointestinal Specialists LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Eastern Virginia Medical School |
| Graduation year | 2015 (11 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) | 1114312808 |
| 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