Rizwan Ahmed, M.D.
Gastroenterology · Internal Medicine (CMS) · Manassas, VA
At a glance
8640 Sudley Rd Ste 201, Manassas, VA 20110-4404
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Feb 13, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
8640 Sudley Rd Ste 201Manassas, VA 20110-4404
Additional reported practice locations
500 Martha Jefferson DrCharlottesville, VA 229114668
Phone: 4346545260
Fax: 4346545260 170 W Shirley Ave Ste 205
Warrenton, VA 201863083
Phone: 5403472470 1010 Three Springs Blvd Ste 270
Durango, CO 813018296
Phone: 9707643800
Fax: 9707643840 24430 Stone Springs Blvd Ste 250
Dulles, VA 201662268
Phone: 5712480653 7915 Lake Manassas Dr Ste 302
Gainesville, VA 201553260
Phone: 5712480653
Education & affiliations
- Medical / professional school
- Eastern Virginia Medical School
- Graduation year
- 2003
- CMS specialties
- Gastroenterology · Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
- Augusta Medical Group
- Gastroenterology Associates Va, Llc
- Martha Jefferson Medical Group Llc
- Rmh Medical Group Llc
- Uva Community Health Medical Group Llc
Reported hospital affiliations
- Augusta Health Fishersville, VA
- Sentara Martha Jefferson Hospital Charlottesville, VA
- Sentara Rmh Medical Center Harrisonburg, VA
- Uva Health Haymarket Medical Center Haymarket, VA
- Uva Health Prince William Medical Center Manassas, VA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 117 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 104 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $806.74 |
Reporting companies
| Company | Amount |
|---|---|
| ABBVIE INC. | $297.38 |
| INTUITIVE SURGICAL, INC. | $126.59 |
| GENZYME CORPORATION | $80.30 |
| ARDELYX, INC. | $65.95 |
| PFIZER INC. | $55.77 |
| SALIX PHARMACEUTICALS, A DIVISION OF BAUSCH HEALTH US, LLC | $46.32 |
| MADRIGAL PHARMACEUTICALS | $33.98 |
| LILLY USA, LLC | $31.03 |
| Other reporting companies | $69.42 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology · Internal Medicine (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Feb 21, 2008
- Record updated
- Feb 13, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207RG0100X · Primary
License reported: 0101256346 VA
207RG0100X
License reported: 94846 SC
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
8640 Sudley Rd Ste 201Manassas, VA 20110-4404
- Phone
- (703) 368-6819
- Fax
- (703) 330-2923
Mailing address
PO BOX 381468GERMANTOWN, TN 381831468
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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