Eric Yap, MD
NPI 1639254279 · Gastroenterology Physician · Bellevue, WA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Yap, MD is a Gastroenterology Physician provider in Bellevue, WA (NPI 1639254279).
Provider details
- NPI number
- 1639254279
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00038456 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
440 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 93 | $148 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 67 | $52 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $100 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 48 | $140 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 44 | $108 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 236 | 80 |
| Pantoprazole Sodium | 84 | 30 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 58 | 54 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 52 | 51 |
| Mesalamine | 32 | — |
| Adalimumabbrand: Humira(cf) Pen | 25 | — |
| Famotidine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,616 across 86 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2019-05-02
Frequently asked questions
- What is Eric Yap's NPI number?
- Eric Yap's National Provider Identifier (NPI) is 1639254279, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Yap's specialty?
- Eric Yap is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Yap located?
- Eric Yap's practice location on file with NPPES is 1135 116th Ave Ne, Bellevue, WA 98004-4623.
- What is Eric Yap's phone number?
- The practice phone number listed in the NPPES registry for Eric Yap is (425) 467-0150.
- Does Eric Yap accept Medicare?
- Eric Yap is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Yap's NPI active?
- Yes — Eric Yap's NPI (1639254279) is active in the NPPES registry as of the last update on 2019-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.