Nurse Practitioner, Family · Fontana, CA
NPI
1194208744
Since 2018
Specialty
Nurse Practitioner, Family
Code 363LF0000X
Group practices
2
Medicare group memberships
Hospitals
0
Hospital affiliations
9961 Sierra Ave
Fontana, CA, 92335
Phone (909) 427-3000
Groups this clinician bills Medicare through
Medicare paid, 2024
$1,095
33 services
Medicare patients, 2024
29
Average age 71
Drug cost, 2024
$237K
4,895 prescriptions
Company payments, 2025
$279
From 4 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Ashley B Guzman was code 99212 (office e&m - established), 20 times for 17 patients. In total Ashley B Guzman billed 33 services in 2 codes, and Medicare paid $1,095.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2021-12-06.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99212 Office E&M - Established | Office | 20 | 17 | $27.90 | $558 |
| 99213 Office E&M - Established | Office | 13 | 13 | $41.31 | $537 |
By year: 2022 $1,375 for 32 services; 2023 $1,892 for 43 services; 2024 $1,095 for 33 services.
Medicare prescription drug claims, 2024
In 2024, the drug Ashley B Guzman prescribed most often to Medicare patients was Prednisolone Acetate, with 2,551 prescriptions and refills. In total Ashley B Guzman wrote 4,895 Medicare prescriptions that cost $237K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Prednisolone Acetate Generic | 2,551 | 3,175 | 2,090 | $186K |
| Ofloxacin Generic | 1,452 | 1,519 | 1,356 | $29K |
| Polymyxin B Sul-Trimethoprim Polymyxin B Sulf/Trimethoprim | 310 | 343 | 283 | $4,369 |
| Ketorolac Tromethamine Generic | 282 | 309 | 232 | $7,704 |
| Gatifloxacin Generic | 142 | 142 | 122 | $6,037 |
| Diclofenac Sodium Generic | 138 | 139 | 131 | $1,804 |
Brand drugs: 2,555 claims; generic drugs: 2,340 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Ashley B Guzman $279 ($279 in general payments such as food, travel and fees) from 4 companies. The largest payer was Abbott Laboratories with $142.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.