John Erikson Yap, M.D.
Gastroenterology (CMS) · St George, UT
At a glance
1380 E Medical Center Dr Ste 4100, St George, UT 84790-2156
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Jun 27, 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
1380 E Medical Center Dr Ste 4100St George, UT 84790-2156
Additional reported practice locations
1901 W. Harrison St.Chicago, IL 606123714
Phone: 3128646000 1901 W. Harrison St.
Chicago, IL 60612
Phone: 3128646000 3535 S Market St
West Valley City, UT 841193635
Phone: 3854301431
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2008
- CMS specialties
- Gastroenterology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Holy Cross Hospital - Salt Lake Salt Lake City, UT
- Intermountain Health Logan Regional Hospital Logan, UT
- University Of Utah Hospital And Clinics Salt Lake City, UT
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 | 104 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 218 |
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 | $29,400.00 |
| Consulting fee | $13,000.00 |
| Travel and lodging | $12,697.10 |
| Food and beverage | $6,095.86 |
Reporting companies
| Company | Amount |
|---|---|
| PHATHOM PHARMACEUTICALS, INC. | $36,929.70 |
| US ENDOSCOPY | $11,000.00 |
| STERIS CORPORATION | $4,445.78 |
| BOSTON SCIENTIFIC CORPORATION | $4,183.00 |
| LABORIE MEDICAL TECHNOLOGIES CORP. | $2,197.69 |
| 3-D MATRIX, INC. | $1,288.17 |
| FUJIFILM HEALTHCARE AMERICAS CORPORATION | $451.77 |
| OMEGA MEDICAL IMAGING, LLC | $248.25 |
| Other reporting companies | $448.60 |
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
- Jul 19, 2011
- Record updated
- Jun 27, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207R00000X
License reported: 125059055 IL
207RG0100X
License reported: 079760 GA
207RG0100X · Primary
License reported: 13239672-1205 UT
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1380 E Medical Center Dr Ste 4100St George, UT 84790-2156
- Phone
- (435) 251-3800
- Fax
- (435) 251-3801
Mailing address
PO BOX 27128SALT LAKE CITY, UT 841270128
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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