Physician
Yi Zheng MD PC
Yi Zheng MD PC was paid $130K by Medicaid between Oct 2022 and Dec 2024, across 8 billing codes. Its largest line is 99214, doctor's office visit, returning patient (more involved) — 23% of everything it billed.
33Billing provider infoYI ZHENG MD PC
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
33aNPI1083280853assigned 06/02/2021
33bProvider typeGastroenterology Physician
28Total paid$130K
24GClaims1,469
24DCodes billed8
24AFirst – last monthOct 2022 – Dec 2024
Compared with peers
Next to other Gastroenterology Physician providers in California
Rank by total paid#141 of 363
Median peer was paid$55K
This provider vs. median2.4×
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Box 24A · Dates of service
Paid by month
Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2022 | 103 | $4K | |
| 2023 | 693 | $63K | |
| 2024incomplete | 673 | $63K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99214 | Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity | 23% | 440 | 406 | $30K |
| 43239 | Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple | 19% | 109 | 108 | $25K |
| 44361 | 15% | 115 | 114 | $20K | |
| 76981 | 15% | 204 | 203 | $20K | |
| 91200 | 12% | 494 | 494 | $16K | |
| 45380 | Colonoscopy, flexible; with biopsy, single or multiple | 9.5% | 41 | 41 | $12K |
| 99204 | Doctor's office visit, new patient (more involved)Office or other outpatient visit for the evaluation and management of a new patient, moderate complexity | 2.9% | 54 | 54 | $4K |
| 45384 | 2.8% | 12 | 12 | $4K |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.
From NPPES
Who's on the registration
Authorized officialZHENG, YI (MD)