Doctor profile · Federal record
Dr. John Feilbach, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Grafton, WI
- NPI 1538191168
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
215 Washington St
Grafton, WI 53024
(262) 375-3700
fax (262) 376-6020
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 1, 2021
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #33495
- Medicaid
- WI #31871700
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538191168. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
161
Distinct HCPCS
2
Medicare allowed
$13,845
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 145 | 135 | $84 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 16 | 16 | $105 |
In context: peer comparison
Among 6 peers in Grafton Internal Medicine Physician, average services per provider: 70. This provider delivers 2.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
85
Patients
85
Total drug cost
$567
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Azithromycin | Generic | 45 | 45 | $188 |
| Ciprofloxacin Hcl | Generic | 16 | 16 | $102 |
| Cefadroxil | Generic | 13 | 13 | $150 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 11 | 11 | $127 |
Frequently asked questions
What is Dr. John Feilbach's medical specialty?
Dr. John Feilbach practices Internal Medicine Physician in Grafton, WI.
Where does Dr. John Feilbach practice?
Dr. John Feilbach practices at 215 Washington St, Grafton, WI 53024. Office phone: 2623753700.
What is Dr. John Feilbach's NPI?
Dr. John Feilbach's National Provider Identifier (NPI) is 1538191168, issued by NPPES.
Does Dr. John Feilbach accept Medicare assignment?
Yes. Dr. John Feilbach accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Feilbach commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.