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DR. JOHN ERIKSON YAP M.D.
NPI 1184912529
Internal Medicine - Gastroenterology in St George, UT

Active since July 19, 2011PECOS EnrolledAccepts Medicare Assignment
77.82/100
CMS Quality Rating
1380 E MEDICAL CENTER DR STE 4100, ST GEORGE, UT 84790(435) 251-3800(435) 251-3801 Get Directions Write a Review

NPPES record last updated: June 27, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. John Erikson Yap M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN ERIKSON YAP M.D. (NPI 1184912529) is an individual gastroenterology provider in St George, Utah, licensed in Utah (13239672-1205) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital - Salt Lake, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1184912529
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JOHN ERIKSON YAPCredential: M.D.
Location Address1380 E MEDICAL CENTER DR STE 4100St George, UT 84790-2156
Mailing AddressPo Box 27128Salt Lake City, UT 84127-0128
Phone(435) 251-3800
Fax(435) 251-3801
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateJuly 19, 2011
Last NPPES UpdateJune 27, 2024
NPPES CertifiedJune 27, 2024
✔ NPI 1184912529 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in UT · 13239672-1205✔ Licensed in GA · 079760
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License 125059055 (IL)
1380 E MEDICAL CENTER DR STE 4100, St George, UT 84790
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11901 W. Harrison St.Chicago, IL 60612-3714 · Phone (312) 864-6000
Location 23535 S Market StWest Valley City, UT 84119-3635 · Phone (385) 430-1431

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Molina Healthcare, Regence BlueCross BlueShield of Utah and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John Erikson Yap M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678896412
PECOS Enrollment IDI20230912000826
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show John Erikson Yap reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ihc Health Services Inc
Same address
Maternal & Fetal Medicine
1380 E MEDICAL CENTER DR STE 1600
St George, UT 84790
  • Reassigned Medicare billing, Utah enrollment
  • 3,691 clinicians in this Medicare group
NPI 1093013203 (435) 251-4150
University Of Utah Adult Services
261 mi
Neurology
175 N MEDICAL DR
Salt Lake City, UT 84132
  • Reassigned Medicare billing, Utah enrollment
  • 2,620 clinicians in this Medicare group
NPI 1578967345 (801) 585-7575
Au Medical Associates Inc
1,793 mi
Multi-Specialty
1120 15TH ST
Augusta, GA 30912
  • Reassigned Medicare billing, Georgia enrollment
  • 1,151 clinicians in this Medicare group
NPI 1841230620 (706) 721-2273

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
53 services53 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
45 services45 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
19 services19 patients
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249
This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.
14 services14 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
11 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Holy Cross Hospital - Salt Lake

Acute Care Hospitals · Salt Lake City, UT
2/5 CMS rating
OwnershipProprietary
CMS Certification Number460003
Location1050 East South TempleSalt Lake City, UT 84102 · Salt Lake County
Emergency services

University Of Utah Hospitals And Clinics

Acute Care Hospitals · Salt Lake City, UT
5/5 CMS rating
OwnershipGovernment - State
CMS Certification Number460009
Location50 North Medical DriveSalt Lake City, UT 84132 · Salt Lake County
Emergency services Birthing friendly

Logan Regional Hospital

Acute Care Hospitals · Logan, UT
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number460015
Location1400 North 500 EastLogan, UT 84341 · Cache County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 84790 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$125.70 typical visit price
range $54.34 – $166.03
Typical copayment $31.42 (range $13.58 – $41.50)
Most-billed visit code 99204
Established Patient
$96.35 typical visit price
range $17.23 – $135.20
Typical copayment $24.08 (range $4.30 – $33.80)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.82/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.04
Promoting Interoperability92
Improvement Activities40
Cost60.7

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ALLAN CLARK GUNNERSON D.O.
Internal Medicine (Gastroenterology)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-3800
LONNY DEE KRAUSE APRN , NP-C
Nurse Practitioner (Family)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2900
DR. CHRISTOPHER MICHAEL FLANNERY MD
Internal Medicine (Gastroenterology)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2880
DR. MEGAN RENEE HUBBARD DO
Internal Medicine (Gastroenterology)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2800
DEBORAH D BARTON NP
Nurse Practitioner (Adult Health)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2900
DR. LYNN R. NIMER M.D.
Internal Medicine (Cardiovascular Disease)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2900
DONALD JASON WILLOWS PA-C
Physician Assistant
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2800
DR. NICHOLAS HENRY LAFFELY M.D.
Internal Medicine (Cardiovascular Disease)
1380 E MEDICAL CENTER DR STE 4100
ST GEORGE, UT 84790
Washington County (435) 251-2500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Erikson Yap's NPI number?

The NPI number for John Erikson Yap is 1184912529. It was assigned to this individual provider in the NPPES registry on July 19, 2011.

Where is John Erikson Yap located?

John Erikson Yap practices at 1380 E Medical Center Dr Ste 4100, St George, UT 84790. The listed phone number is (435) 251-3800.

What is John Erikson Yap's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is John Erikson Yap enrolled in Medicare?

Yes. John Erikson Yap is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for John Erikson Yap's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Erikson Yap reassigns Medicare benefits to 3 organizations: Ihc Health Services Inc (St George, UT), University Of Utah Adult Services (Salt Lake City, UT) and Au Medical Associates Inc (Augusta, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Erikson Yap's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Erikson Yap accept?

Health plans from BridgeSpan Health Company, Molina Healthcare, Regence BlueCross BlueShield of Utah, Select Health and University of Utah Health Plans list John Erikson Yap as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Erikson Yap affiliated with any hospitals?

According to CMS data, John Erikson Yap is affiliated with Holy Cross Hospital - Salt Lake, University Of Utah Hospitals And Clinics and Logan Regional Hospital.

When was this NPI record last updated?

The NPPES record for John Erikson Yap was last updated on June 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.