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Edit this profileVincent WEN CHIEN Kao, DO practices gastroenterology in Fountain Valley, CA. Vincent is also listed as specializing in internal medicine. According to Medicare claims data, Vincent cared for 59 Medicare patients across 69 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1649570268.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
18035 BROOKHURST ST STE 2100
Fountain Valley, CA 92708
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Chronic conditions
Liver health
Specialized and cancer
Wound care
Most searched conditions
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Advanced endoscopy
Biliary and pancreatic endoscopy
Capsule and physiology testing
Chronic illness
Clinical Nutrition
Diagnostic Testing
Digestive
General surgery
Infection & Microbiology Tests
Liver procedures
Lower endoscopy
Nursing care
Nutrition & Digestion
Upper endoscopy
Most searched procedures
Treatments
69 services · 59 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
11 | Less often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
27 | Less often than most peers in Gastroenterology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
17 | Less often than most peers in Gastroenterology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
14 | Less often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Kao is a gastroenterologist in Fountain Valley, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Dr. Kao is listed at 18035 Brookhurst St Ste 2100, Fountain Valley, CA 92708. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (657) 241-9090. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Kao's National Provider Identifier is 1649570268. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Kao attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
Dr. Kao has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Kao performs procedures including biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kao. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.
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