Physician
Guillermo Castillo MD INC
Guillermo Castillo MD INC was paid $7K by Medicaid between Feb 2018 and Sep 2019, across 2 billing codes. Its largest line is 99308, Subsequent nursing facility care, per day, straightforward — 96% of everything it billed.
33Billing provider infoGUILLERMO CASTILLO MD INC
SAN DIEGO, CA 92105
SAN DIEGO, CA 92105
33aNPI1740413897assigned 08/24/2009
33bProvider typeFamily Medicine Physician
28Total paid$7K
24GClaims398
24DCodes billed2
24AFirst – last monthFeb 2018 – Sep 2019
Compared with peers
Next to other Family Medicine Physician providers in California
Rank by total paid#1,432 of 2,511
Median peer was paid$13K
This provider vs. median0.5×
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 | 123 | $2K | |
| 2019 | 275 | $4K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99308 | Subsequent nursing facility care, per day, straightforward | 96% | 386 | 361 | $6K |
| 99306 | Prolong nursin fac eval 15m | 3.5% | 12 | 12 | $229.68 |
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 officialCASTILLO, GUILLERMO (PRESIDENT/OWNER)
| Provider | Location | Paid |
|---|---|---|
| Castillo & Mulkay Dental, P.C. | Union City, NJ | $358K |
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.