Abdulhameed Al-Sabban, MBBS
Gastroenterology (CMS) · Baltimore, MD
At a glance
22 S Greene St, Baltimore, MD 21201-1544
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Feb 17, 2025. 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
22 S Greene StBaltimore, MD 21201-1544
Additional reported practice locations
419 W Redwood StBaltimore, MD 212011734
Phone: 6672141422
Fax: 4103288326 7625 Maple Lawn Blvd Ste 110
Fulton, MD 207592565
Phone: 3014905025
Fax: 3014905260 800 Linden Ave
Baltimore, MD 212014622
Phone: 4102258301
Fax: 4103288315 827 Linden Ave
Baltimore, MD 212014606
Phone: 4103288730
Fax: 4103288315 100 West Rd Ste 115
Towson, MD 212042358
Phone: 4104940144
Fax: 4104940147 700 Geipe Rd
Catonsville, MD 212284147
Phone: 4107532255
Fax: 4102424404
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2005
- CMS specialties
- Gastroenterology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Umd Upper Chesapeake Medical Center Bel Air, MD
- University Of Maryland Medical Center Baltimore, MD
- University Of Md Baltimore Washington Medical Center Glen Burnie, MD
- University Of Md Medical Center Midtown Campus Baltimore, MD
- University Of Md Shore Medical Center At Easton Easton, MD
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 | 45 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 222 |
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 | $687.53 |
Reporting companies
| Company | Amount |
|---|---|
| BOSTON SCIENTIFIC CORPORATION | $558.29 |
| MICRO-TECH ENDOSCOPY USA, INC. | $45.71 |
| MALLINCKRODT HOSPITAL PRODUCTS INC. | $30.74 |
| PHATHOM PHARMACEUTICALS, INC. | $19.77 |
| TAKEDA PHARMACEUTICALS U.S.A., INC. | $17.38 |
| MIRUM PHARMACEUTICALS, INC. | $15.64 |
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 (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- May 18, 2011
- Record updated
- Feb 17, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MBBS
Reported taxonomies and licenses
207RG0100X · Primary
License reported: D97993 MD
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
22 S Greene StBaltimore, MD 21201-1544
- Phone
- (410) 328-5780
- Fax
- (410) 328-8315
Mailing address
3800 RESERVOIR RD NWDEPARTMENT OF GASTROENTEROLOGY
WASHINGTON, DC 200072113
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue