Gregory Ian Seltzer, MD
Gastroenterology · Internal Medicine (CMS) · Sicklerville, NJ
At a glance
485 Williamstown Rd, Sicklerville, NJ 08081-1777
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Nov 18, 2024. 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
485 Williamstown Rd Suite JSicklerville, NJ 08081-1777
Additional reported practice locations
1945 Marlton Pike E Ste DCherry Hill, NJ 080032160
Phone: 8562378045
Fax: 8562378047 239 Hurffville Crosskeys Rd Ste 490
Sewell, NJ 080804013
Phone: 8562378045
Fax: 8562378047
Education & affiliations
- Medical / professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc)
- 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
Reported hospital affiliations
- Cooper University Hospital Camden, NJ
- Virtua Mount Holly Hospital Mount Holly, NJ
- Virtua Our Lady Of Lourdes Hospital Camden, NJ
- Virtua Willingboro Hospital Willingboro, NJ
- West Jersey Hospital Voorhees, NJ
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 | 144 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 113 |
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 |
|---|---|
| Services other than consulting | $16,303.60 |
| Food and beverage | $3,672.94 |
| Travel and lodging | $3,360.76 |
| Consulting fee | $400.00 |
Reporting companies
| Company | Amount |
|---|---|
| ARDELYX, INC. | $20,245.46 |
| MEDTRONIC, INC. | $1,714.49 |
| QOL MEDICAL, LLC | $333.84 |
| JANSSEN BIOTECH, INC. | $264.40 |
| SALIX PHARMACEUTICALS, A DIVISION OF BAUSCH HEALTH US, LLC | $208.14 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $176.88 |
| ABBVIE INC. | $172.75 |
| TAKEDA PHARMACEUTICALS U.S.A., INC. | $120.77 |
| Other reporting companies | $500.57 |
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
- Jan 16, 2008
- Record updated
- Nov 18, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207R00000X
License reported: MD432399 PA
207RG0100X · Primary
License reported: 25MA07859000 NJ
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
485 Williamstown RdSuite J
Sicklerville, NJ 08081-1777
- Phone
- (856) 237-8045
- Fax
- (856) 237-8047
Mailing address
485 WILLIAMSTOWN RDSUITE J
SICKLERVILLE, NJ 080811777
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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