Physician
Thomas S.Lam MD. a Professional Corporation
Thomas S.Lam MD. a Professional Corporation was paid $369K by Medicaid between Jan 2018 and Aug 2022, across 5 billing codes. Its largest line is 45380, Colonoscopy, flexible; with biopsy, single or multiple — 42% of everything it billed.
33Billing provider infoTHOMAS S.LAM MD. A PROFESSIONAL CORPORATION
ALHAMBRA, CA 91801
ALHAMBRA, CA 91801
33aNPI1336309350assigned 06/12/2008
33bProvider typeGastroenterology Physician
28Total paid$369K
24GClaims4,178
24DCodes billed5
24AFirst – last monthJan 2018 – Aug 2022
Compared with peers
Next to other Gastroenterology Physician providers in California
Rank by total paid#104 of 363
Median peer was paid$55K
This provider vs. median6.7×
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 | 1,310 | $90K | |
| 2019 | 1,429 | $130K | |
| 2020 | 488 | $43K | |
| 2021 | 708 | $87K | |
| 2022 | 243 | $19K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 45380 | Colonoscopy, flexible; with biopsy, single or multiple | 42% | 756 | 756 | $156K |
| 99203 | Doctor's office visit, new patient (routine)Office or other outpatient visit for the evaluation and management of a new patient, low complexity | 24% | 1,057 | 1,055 | $88K |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 19% | 1,288 | 1,276 | $69K |
| 43239 | Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple | 9.1% | 420 | 419 | $33K |
| 99212 | Office or other outpatient visit for the evaluation and management of an established patient, straightforward | 6.1% | 657 | 656 | $22K |
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 officialLAM, THOMAS (DIRECTOR)
| Provider | Location | Paid |
|---|---|---|
| 1 World Medicine Urgent Care Corp | Monterey Park, CA | $5.41M |
| Astrana Care Hospitalists, a Medical Corporation | Alhambra, CA | $4.27M |
| Allied Physicians of California, a Professional Medical Corp | Alhambra, CA | $2.90M |
| Amg, a Professional Medical Corporation | Alhambra, CA | $966K |
| Amg, a Professional Medical Corp | Pasadena, CA | $447K |
| 99 Medical Equipment, Healthcare Supplies & Wheelchair Center | Monterey Park, CA | $237K |
| Amg, a Professional Medical Corporation | Maywood, CA | $5K |
| Alpha Care Medical Group, INC | Pasadena, CA | $285.27 |
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.