Doctor profile · Federal record

Dr. Karen Wallace, MD

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Cambridge, MA

  • NPI 1245463934
  • Accepts Medicare
  • 19 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
330 Mount Auburn St, Department of Radiology
Cambridge, MA 021385502
(617) 499-5070

Credentials & registration

NPPES · NUCC
NPI registered
August 2009 — 17 yrs on file
Profile last updated
December 15, 2021
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Massachusetts #240595

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245463934. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
102
Distinct HCPCS
3
Medicare allowed
$3,403
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 64 56 $10
70450 Ct scan head or brain without contrast 19 19 $46
74177 Ct scan of abdomen and pelvis with contrast 19 18 $99

In context: peer comparison

Among 12 peers in Cambridge Diagnostic Radiology Physician, average services per provider: 82. This provider delivers 1.2× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Wallace's medical specialty?
Dr. Karen Wallace practices Diagnostic Radiology Physician in Cambridge, MA.
Where does Dr. Karen Wallace practice?
Dr. Karen Wallace practices at 330 Mount Auburn St, Cambridge, MA 021385502. Office phone: 6174995070.
What is Dr. Karen Wallace's NPI?
Dr. Karen Wallace's National Provider Identifier (NPI) is 1245463934, issued by NPPES.
Does Dr. Karen Wallace accept Medicare assignment?
Yes. Dr. Karen Wallace accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Wallace commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); Ct scan of abdomen and pelvis with contrast (HCPCS 74177). Source: CMS Medicare Physician & Other Practitioners file.