Physician
Ronald D Kerwin MD PC
Ronald D Kerwin MD PC was paid $462K by Medicaid between Feb 2018 and Nov 2021, across 16 billing codes. Its largest line is 99213, doctor's office visit, returning patient (routine) — 35% of everything it billed.
33Billing provider infoRONALD D KERWIN MD PC
WEST BLOOMFIELD, MI 48322
WEST BLOOMFIELD, MI 48322
33aNPI1992754485assigned 05/10/2006
33bProvider typeDermatology Physician
28Total paid$462K
24GClaims11,191
24DCodes billed16
24AFirst – last monthFeb 2018 – Nov 2021
Compared with peers
Next to other Dermatology Physician providers in Michigan
Rank by total paid#14 of 51
Median peer was paid$67K
This provider vs. median6.9×
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 | 1,621 | $69K | |
| 2019 | 2,848 | $111K | |
| 2020 | 3,003 | $119K | |
| 2021 | 3,719 | $162K |
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 | 35% | 4,117 | 3,669 | $159K |
| 17110 | 18% | 1,422 | 1,203 | $84K | |
| 99203 | Doctor's office visit, new patient (routine)Office or other outpatient visit for the evaluation and management of a new patient, low complexity | 15% | 1,235 | 1,214 | $69K |
| 99202 | Office or other outpatient visit for the evaluation and management of a new patient, straightforward | 14% | 1,632 | 1,601 | $63K |
| 11102 | 5.4% | 513 | 506 | $25K | |
| 11900 | 3.3% | 577 | 522 | $15K | |
| 99214 | Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity | 3.2% | 217 | 212 | $15K |
| 88305 | Level IV - Surgical pathology, gross and microscopic examination | 1.7% | 191 | 181 | $8K |
| 10060 | 1.5% | 107 | 103 | $7K | |
| 11100 | 1.2% | 114 | 112 | $6K | |
| 99212 | Office or other outpatient visit for the evaluation and management of an established patient, straightforward | 1.0% | 209 | 189 | $5K |
| 10040 | <1% | 63 | 47 | $4K |
4 more codes
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 officialKERWIN, RONALD (PRESIDENT)