Erick Chan, MD
NPI 1497817746 · Gastroenterology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erick Chan, MD is a Gastroenterology Physician provider in Palo Alto, CA (NPI 1497817746).
Provider details
- NPI number
- 1497817746
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD426035 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1,435 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) |
|---|---|---|
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 378 | $6 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 309 | $252 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 157 | $52 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 98 | $211 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 93 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 284 | 281 |
| Omeprazole | 107 | 36 |
| Ursodiol | 46 | — |
| Tenofovir Alafenamidebrand: Vemlidy | 43 | — |
| Entecavir | 40 | — |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 31 | 31 |
| Tenofovir Disoproxil Fumarate | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$79 across 2 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
- 2006-12-14
- Last updated
- 2020-05-27
- Certified
- 2020-05-27
Frequently asked questions
- What is Erick Chan's NPI number?
- Erick Chan's National Provider Identifier (NPI) is 1497817746, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erick Chan's specialty?
- Erick Chan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Erick Chan located?
- Erick Chan's practice location on file with NPPES is 795 El Camino Real, Palo Alto, CA 94301-2302.
- What is Erick Chan's phone number?
- The practice phone number listed in the NPPES registry for Erick Chan is (650) 853-2972.
- Does Erick Chan accept Medicare?
- Erick Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erick Chan's NPI active?
- Yes — Erick Chan's NPI (1497817746) is active in the NPPES registry as of the last update on 2020-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.