Barton Ueki, M.D.
NPI 1043219355 · Gastroenterology Physician · Whittier, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barton Ueki, M.D. is a Gastroenterology Physician provider in Whittier, CA (NPI 1043219355).
Provider details
- NPI number
- 1043219355
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A22592 (CA)
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
193 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 72 | $185 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 71 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 50 | $99 |
Typical Medicare-allowed amounts for these services range $99–$185 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 136 | 132 |
| Dicyclomine Hcl | 59 | 34 |
| Pantoprazole Sodium | 57 | 21 |
| Famotidine | 55 | 26 |
| Omeprazole | 50 | 30 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 34 | 33 |
| Linaclotidebrand: Linzess | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$422 across 20 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
Additional practice locations (1)
- 5750 Downey Ave Ste 202Lakewood, CA 90712-1470Phone: (562) 634-4939Fax: (562) 634-5809
Registry dates
- Enumerated
- 2005-07-19
- Last updated
- 2019-10-22
Frequently asked questions
- What is Barton Ueki's NPI number?
- Barton Ueki's National Provider Identifier (NPI) is 1043219355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barton Ueki's specialty?
- Barton Ueki is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Barton Ueki located?
- Barton Ueki's practice location on file with NPPES is 12486 Washington Blvd, Whittier, CA 90602-1005.
- What is Barton Ueki's phone number?
- The practice phone number listed in the NPPES registry for Barton Ueki is (562) 693-0756.
- Does Barton Ueki accept Medicare?
- Barton Ueki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barton Ueki's NPI active?
- Yes — Barton Ueki's NPI (1043219355) is active in the NPPES registry as of the last update on 2019-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.