Doctor profile · Federal record

Dr. Irwin Maier, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Red Bluff, CA

  • NPI 1275538431
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
21320 Penneleme RD
Red Bluff, CA 960807992
(952) 595-1100
fax (612) 294-4903
Mailing address
11995 Singletree Ln, Ste 500
Eden Prairie, MN 553445347

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
January 9, 2017
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #A61466

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275538431. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
7,709
Distinct HCPCS
10
Medicare allowed
$216,770
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 1,341 924 $9
71046 X-ray of chest, 2 views 669 611 $11
70450 Ct scan head or brain without contrast 475 420 $40
74177 Ct scan of abdomen and pelvis with contrast 323 298 $87
73030 X-ray of shoulder, minimum of 2 views 231 192 $9
73502 X-ray of hip, 2-3 views 195 173 $11
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 186 176 $21
76705 Limited ultrasound scan of abdomen 173 165 $28
72125 Ct scan of upper spine without contrast 170 160 $47
73630 X-ray of foot, minimum of 3 views 163 134 $8

In context: peer comparison

Among 1 peers in Red Bluff Diagnostic Radiology Physician, average services per provider: 100. This provider delivers 77× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Irwin Maier's medical specialty?
Dr. Irwin Maier practices Diagnostic Radiology Physician in Red Bluff, CA.
Where does Dr. Irwin Maier practice?
Dr. Irwin Maier practices at 21320 Penneleme RD, Red Bluff, CA 960807992. Office phone: 9525951100.
What is Dr. Irwin Maier's NPI?
Dr. Irwin Maier's National Provider Identifier (NPI) is 1275538431, issued by NPPES.
Does Dr. Irwin Maier accept Medicare assignment?
Yes. Dr. Irwin Maier accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Irwin Maier commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); X-ray of chest, 2 views (HCPCS 71046); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.