Doctor profile · Federal record
Dr. Kathleen Powell Mattioli, MD
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Obstetrics & Gynecology Physician · West Allis, WI
- NPI 1457530446
- Accepts Medicare
- 22 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
8905 W Lincoln Ave, Suite 501
West Allis, WI 532272468
(414) 978-2229
fax (414) 978-2279 - Additional location
-
27790 W Highway 22 Ste 36
Barrington, IL 600102396
(847) 381-8181
fax (847) 381-6372 - Mailing address
-
3003 W Good Hope RD
Milwaukee, WI 532092042
Credentials & registration
- NPI registered
- October 2007 — 19 yrs on file
- Profile last updated
- June 7, 2023
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State licenses (2)
- Wisconsin #49339 · Illinois #036-163299
- Medicaid
- WI #35336200
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457530446. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13
Distinct HCPCS
1
Medicare allowed
$2,035
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $157 |
In context: peer comparison
Among 6 peers in West Allis Obstetrics & Gynecology Physician, average services per provider: 25. This provider delivers 0.5× the peer median.Frequently asked questions
What is Dr. Kathleen Powell Mattioli's medical specialty?
Dr. Kathleen Powell Mattioli practices Obstetrics & Gynecology Physician in West Allis, WI.
Where does Dr. Kathleen Powell Mattioli practice?
Dr. Kathleen Powell Mattioli practices at 8905 W Lincoln Ave, West Allis, WI 532272468. Office phone: 4149782229.
What is Dr. Kathleen Powell Mattioli's NPI?
Dr. Kathleen Powell Mattioli's National Provider Identifier (NPI) is 1457530446, issued by NPPES.
Does Dr. Kathleen Powell Mattioli accept Medicare assignment?
Yes. Dr. Kathleen Powell Mattioli accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathleen Powell Mattioli commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.