Doctor profile · Federal record

Dr. Robert Schlosser, MD

Anesthesiology Physician (CMS: Anesthesiology) · Grafton, WI

  • NPI 1124071501
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
975 Port Washington RD
Grafton, WI 530249201
(262) 329-1000
fax (262) 329-1001
Additional location
9200 W Wisconsin Ave, Department of Anesthesiology
Milwaukee, WI 532263522
(414) 805-8700
fax (414) 259-1522
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
May 14, 2025
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Wisconsin #43597
Medicaid (2)
WI #1124071501 · WI #34646500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124071501. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
81
Distinct HCPCS
4
Medicare allowed
$7,664
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 30 30 $98
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 25 23 $94
00142 Anesthesia for lens surgery 14 14 $59
00813 Anesthesia for procedure on small and large bowel using an endoscope 12 12 $129

In context: peer comparison

Among 13 peers in Grafton Anesthesiology Physician, average services per provider: 17. This provider delivers 4.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Schlosser's medical specialty?
Dr. Robert Schlosser practices Anesthesiology Physician in Grafton, WI.
Where does Dr. Robert Schlosser practice?
Dr. Robert Schlosser practices at 975 Port Washington RD, Grafton, WI 530249201. Office phone: 2623291000.
What is Dr. Robert Schlosser's NPI?
Dr. Robert Schlosser's National Provider Identifier (NPI) is 1124071501, issued by NPPES.
Does Dr. Robert Schlosser accept Medicare assignment?
Yes. Dr. Robert Schlosser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Schlosser commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for lens surgery (HCPCS 00142). Source: CMS Medicare Physician & Other Practitioners file.