Zahn & Associates a Medical Corporation
Zahn & Associates a Medical Corporation was paid $28K by Medicaid between Jan 2018 and Nov 2024, across 20 billing codes. Its largest line is 99213, doctor's office visit, returning patient (routine) — 59% of everything it billed.
33Billing provider infoZAHN & ASSOCIATES A MEDICAL CORPORATION
SAN GABRIEL, CA 91776
SAN GABRIEL, CA 91776
33aNPI1912059478assigned 01/17/2007
33bProvider typeSpecialist
28Total paid$28K
24GClaims6,003
24DCodes billed20
24AFirst – last monthJan 2018 – Nov 2024
Compared with peers
Next to other Specialist providers in California
Rank by total paid#692 of 1,230
Median peer was paid$51K
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 | 1,906 | $7K | |
| 2019 | 538 | $2K | |
| 2020 | 372 | $2K | |
| 2021 | 676 | $3K | |
| 2022 | 789 | $9K | |
| 2023 | 1,016 | $3K | |
| 2024incomplete | 706 | $2K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 59% | 1,635 | 1,459 | $17K |
| 99222 | Initial hospital care, per day, moderate complexity | 28% | 301 | 297 | $8K |
| 99232 | Hospital visit by a doctor, follow-up daySubsequent hospital care, per day, moderate complexity | 7.0% | 398 | 209 | $2K |
| 99221 | 3.7% | 71 | 71 | $1K | |
| G0442 | Annual alcohol misuse screening, 5 to 15 minutes | <1% | 89 | 89 | $204.05 |
| 43239 | Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple | <1% | 12 | 12 | $196.81 |
| G0444 | Annual depression screening, 5 to 15 minutes | <1% | 85 | 85 | $168.38 |
| 99231 | Subsequent hospital care, per day, straightforward or low complexity | <1% | 79 | 51 | $113.19 |
| 3017F | 0% | 74 | 72 | $0.00 | |
| G8756 | No documentation of blood pressure measurement, reason not given | 0% | 792 | 738 | $0.00 |
| 1036F | 0% | 104 | 100 | $0.00 | |
| G8420 | Bmi is documented within normal parameters and no follow-up plan is required | 0% | 317 | 299 | $0.00 |
8 more codes
| G8510 | Screening for depression is documented as negative, a follow-up plan is not required | 0% | 79 | $0.00 |
| G8754 | Most recent diastolic blood pressure < 90 mmhg | 0% | 56 | $0.00 |
| G8427 | Eligible clinician attests to documenting in the medical record they obtained, updated, or reviewed the patient's current medications | 0% | 1,373 | $0.00 |
| G8417 | Bmi is documented above normal parameters and a follow-up plan is documented | 0% | 91 | $0.00 |
| G8484 | Influenza immunization was not administered, reason not given | 0% | 353 | $0.00 |
| G8421 | Bmi not documented and no reason is given | 0% | 54 | $0.00 |
| 4040F | 0% | 27 | $0.00 | |
| G8752 | Most recent systolic blood pressure < 140 mmhg | 0% | 13 | $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 officialZAHN, CHESTER (CEO)