Vincent Kao, DO
NPI 1649570268 · Gastroenterology Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vincent Kao, DO is a Gastroenterology Physician provider in Fountain Valley, CA (NPI 1649570268).
Provider details
- NPI number
- 1649570268
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A11408 (CA)
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 tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
69 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $139 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 17 | $179 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 14 | $121 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 11 | $172 |
Typical Medicare-allowed amounts for these services range $121–$179 (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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 259 | 247 |
| Omeprazole | 209 | 72 |
| Pantoprazole Sodium | 102 | 42 |
| Linaclotidebrand: Linzess | 78 | 30 |
| Famotidine | 46 | 20 |
| Dicyclomine Hcl | 45 | 16 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-10-29
- Last updated
- 2025-05-08
- Certified
- 2025-05-08
Frequently asked questions
- What is Vincent Kao's NPI number?
- Vincent Kao's National Provider Identifier (NPI) is 1649570268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vincent Kao's specialty?
- Vincent Kao is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Vincent Kao located?
- Vincent Kao's practice location on file with NPPES is 18035 Brookhurst St Ste 2100, Fountain Valley, CA 92708-6738.
- What is Vincent Kao's phone number?
- The practice phone number listed in the NPPES registry for Vincent Kao is (657) 241-9090.
- Does Vincent Kao accept Medicare?
- Vincent Kao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vincent Kao's NPI active?
- Yes — Vincent Kao's NPI (1649570268) is active in the NPPES registry as of the last update on 2025-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.