William T Chapman MD INC
William T Chapman MD INC was paid $548K by Medicaid between Jan 2018 and Jun 2023, across 3 billing codes. Its largest line is 99204, doctor's office visit, new patient (more involved) — 51% of everything it billed.
33Billing provider infoWILLIAM T CHAPMAN MD INC
NATIONAL CITY, CA 91950
NATIONAL CITY, CA 91950
33aNPI1053504076assigned 08/22/2007
33bProvider typeSpecialist
28Total paid$548K
24GClaims3,857
24DCodes billed3
24AFirst – last monthJan 2018 – Jun 2023
Compared with peers
Next to other Specialist providers in California
Rank by total paid#262 of 1,230
Median peer was paid$51K
This provider vs. median11×
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 | |
|---|---|---|---|
| 2018 | 828 | $112K | |
| 2019 | 772 | $104K | |
| 2020 | 564 | $73K | |
| 2021 | 696 | $107K | |
| 2022 | 726 | $111K | |
| 2023 | 271 | $41K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 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 | 51% | 1,647 | 1,647 | $281K |
| 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 | 47% | 2,092 | 2,082 | $257K |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 1.7% | 118 | 118 | $9K |
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 officialCHAPMAN, WILLIAM (NEUROLOGIST)