Physician
Rosalie A. De Guzman, M.D., INC.
Rosalie A. De Guzman, M.D., INC. was paid $99K by Medicaid between Jan 2018 and Nov 2024, across 48 billing codes. Its largest line is 92551, — 56% of everything it billed.
33Billing provider infoROSALIE A. DE GUZMAN, M.D., INC.
CORONA, CA 92882
CORONA, CA 92882
33aNPI1780615864assigned 07/06/2006
33bProvider typePediatrics Physician
28Total paid$99K
24GClaims56,649
24DCodes billed48
24AFirst – last monthJan 2018 – Nov 2024
Compared with peers
Next to other Pediatrics Physician providers in California
Rank by total paid#484 of 1,490
Median peer was paid$15K
This provider vs. median6.6×
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 | 5,919 | $11K | |
| 2019 | 13,560 | $26K | |
| 2020 | 9,864 | $17K | |
| 2021 | 11,114 | $20K | |
| 2022 | 11,388 | $16K | |
| 2023 | 3,942 | $5K | |
| 2024incomplete | 862 | $5K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 92551 | 56% | 7,179 | 7,144 | $56K | |
| 90686 | 14% | 2,937 | 2,930 | $14K | |
| 90651 | 5.9% | 1,184 | 1,179 | $6K | |
| G9920 | Screening performed and negative | 5.5% | 4,081 | 4,074 | $6K |
| 90734 | 4.2% | 823 | 823 | $4K | |
| 90715 | 2.2% | 444 | 442 | $2K | |
| 90707 | 1.6% | 323 | 321 | $2K | |
| 90716 | 1.5% | 304 | 302 | $1K | |
| 90688 | 1.5% | 282 | 282 | $1K | |
| 90460 | Immunization administration through 18 years of age via any route, first or only component | <1% | 1,131 | 391 | $948.00 |
| 90696 | <1% | 173 | 173 | $845.58 | |
| 90621 | <1% | 163 | 163 | $816.00 |
36 more codes
| 99460 | <1% | 15 | $760.45 | |
| 90620 | <1% | 141 | $696.00 | |
| 99213 | Doctor's office visit, returning patient (routine) | <1% | 13,498 | $632.42 |
| 90670 | <1% | 119 | $600.00 | |
| 86580 | <1% | 69 | $520.00 | |
| 90633 | <1% | 99 | $492.00 | |
| 99462 | <1% | 15 | $406.03 | |
| 94640 | Pressurized or nonpressurized inhalation treatment for acute airway obstruction | <1% | 44 | $380.00 |
| 90685 | <1% | 39 | $192.00 | |
| 90700 | <1% | 30 | $162.00 | |
| 90648 | <1% | 25 | $132.00 | |
| 90744 | <1% | 13 | $117.00 | |
| 90619 | <1% | 190 | $12.00 | |
| 85018 | <1% | 1,279 | $4.52 | |
| 81000 | <1% | 1,366 | $2.81 | |
| 3351F | 0% | 601 | $0.00 | |
| 96156 | 0% | 1,238 | $0.00 | |
| G8510 | Screening for depression is documented as negative, a follow-up plan is not required | 0% | 1,636 | $0.00 |
| 3352F | 0% | 358 | $0.00 | |
| 1220F | 0% | 114 | $0.00 | |
| 99214 | Doctor's office visit, returning patient (more involved) | 0% | 75 | $0.00 |
| 96110 | Developmental screening, with scoring and documentation, per standardized instrument | 0% | 61 | $0.00 |
| G0442 | Annual alcohol misuse screening, 5 to 15 minutes | 0% | 75 | $0.00 |
| 3353F | 0% | 16 | $0.00 | |
| 99173 | 0% | 7,149 | $0.00 | |
| 99211 | Office or other outpatient visit for the evaluation and management of an established patient, minimal severity | 0% | 874 | $0.00 |
| 99392 | Periodic comprehensive preventive medicine reevaluation, established patient, early childhood (1-4 years) | 0% | 1,072 | $0.00 |
| 99393 | Periodic comprehensive preventive medicine reevaluation, established patient, late childhood (5-11 years) | 0% | 2,891 | $0.00 |
| 99391 | Periodic comprehensive preventive medicine reevaluation, established patient, infant (under 1 year) | 0% | 44 | $0.00 |
| 99394 | Periodic comprehensive preventive medicine reevaluation, established patient, adolescent (12-17 years) | 0% | 2,645 | $0.00 |
| 99395 | Periodic comprehensive preventive medicine reevaluation, established patient, 18-39 years | 0% | 307 | $0.00 |
| G2012 | Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m service provided within the previous 7 days nor leading to an e/m service or procedure within the next 24 hours or soonest available appointment; 5-10 minutes of medical discussion | 0% | 1,291 | $0.00 |
| 87880 | Infectious agent antigen detection by immunoassay; Streptococcus, group A | 0% | 36 | $0.00 |
| G8431 | Screening for depression is documented as being positive and a follow-up plan is documented | 0% | 66 | $0.00 |
| G0444 | Annual depression screening, 5 to 15 minutes | 0% | 22 | $0.00 |
| 90672 | 0% | 112 | $0.00 |
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 officialDE GUZMAN, ROSALIE (PEDIATRICIAN)