Shirk, Gregory
Shirk, Gregory was paid $12K by Medicaid between Jan 2018 and May 2023, across 4 billing codes. Its largest line is 98941, Chiropractic manipulative treatment; spinal, 3-4 regions — 98% of everything it billed.
33Billing provider infoSHIRK, GREGORY
MASON CITY, IA 50401
MASON CITY, IA 50401
33aNPI1629064464assigned 09/27/2005
33bProvider typeChiropractor
28Total paid$12K
24GClaims565
24DCodes billed4
24AFirst – last monthJan 2018 – May 2023
Compared with peers
Next to other Chiropractor providers in Iowa
Rank by total paid#505 of 790
Median peer was paid$26K
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 | 338 | $6K | |
| 2019 | 100 | $2K | |
| 2022 | 52 | $836.91 | |
| 2023 | 75 | $2K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 98941 | Chiropractic manipulative treatment; spinal, 3-4 regions | 98% | 467 | 359 | $11K |
| 98940 | 2.3% | 16 | 12 | $265.65 | |
| G8730 | Pain assessment documented as positive using a standardized tool and a follow-up plan is documented | 0% | 45 | 37 | $0.00 |
| G8539 | Functional outcome assessment documented as positive using a standardized tool and a care plan based on identified deficiencies is documented within two days of the functional outcome assessment | 0% | 37 | 32 | $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.