Ken Chow, M.D.
NPI 1699781203 · Gastroenterology Physician · Yuba City, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ken Chow, M.D. is a Gastroenterology Physician provider in Yuba City, CA (NPI 1699781203).
Provider details
- NPI number
- 1699781203
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G77866 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
4,189 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,572 | $39 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 826 | $131 |
| 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 | 522 | $5 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 311 | $171 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 248 | $102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 640 | 235 |
| Pantoprazole Sodium | 253 | 92 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 214 | 204 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 91 | 85 |
| Esomeprazole Magnesium | 35 | 13 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 31 | 31 |
| Cholestyramine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,143 across 179 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
- 2006-08-01
- Last updated
- 2010-12-20
Frequently asked questions
- What is Ken Chow's NPI number?
- Ken Chow's National Provider Identifier (NPI) is 1699781203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ken Chow's specialty?
- Ken Chow is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Ken Chow located?
- Ken Chow's practice location on file with NPPES is 870 Shasta St, Yuba City, CA 95991-4152.
- What is Ken Chow's phone number?
- The practice phone number listed in the NPPES registry for Ken Chow is (530) 671-3671.
- Does Ken Chow accept Medicare?
- Ken Chow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ken Chow's NPI active?
- Yes — Ken Chow's NPI (1699781203) is active in the NPPES registry as of the last update on 2010-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.