Doctor profile · Federal record
Dr. Mark Schaefer, M.D.
Anesthesiology Physician (CMS: Anesthesiology) · West Allis, WI
- NPI 1629052428
- Accepts Medicare
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8901 W Lincoln Ave, 2Nd Fl
West Allis, WI 532272409
(414) 329-4300 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- June 4, 2025
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207L00000X — NUCC code
- State license (1)
- Wisconsin #31911-020
- Medicaid (2)
- WI #31915900 · WI #1629052428
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629052428. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
12
Distinct HCPCS
1
Medicare allowed
$799
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00811 |
Anesthesia for other procedure on large bowel using an endoscope | 12 | 12 | $67 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 16. This provider delivers 0.8× the peer median.Frequently asked questions
What is Dr. Mark Schaefer's medical specialty?
Dr. Mark Schaefer practices Anesthesiology Physician in West Allis, WI.
Where does Dr. Mark Schaefer practice?
Dr. Mark Schaefer practices at 8901 W Lincoln Ave, West Allis, WI 532272409. Office phone: 4143294300.
What is Dr. Mark Schaefer's NPI?
Dr. Mark Schaefer's National Provider Identifier (NPI) is 1629052428, issued by NPPES.
Does Dr. Mark Schaefer accept Medicare assignment?
Yes. Dr. Mark Schaefer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Schaefer commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811). Source: CMS Medicare Physician & Other Practitioners file.