Doctor profile · Federal record

Dr. Karen Brennan, CRNA

Registered Nurse · Rockport, ME

  • NPI 1023162328
  • 19 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
6 Glen Cove Dr
Rockport, ME 048564240
(207) 921-8215
fax (207) 921-5302
Mailing address
12 Douglas St, #2
South Boston, MA 021274105

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
May 10, 2016
Specialty taxonomy
163W00000X — NUCC code
State license (1)
Massachusetts #158976

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023162328. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
269
Distinct HCPCS
4
Medicare allowed
$35,802
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 128 128 $139
00812 Anesthesia for exam of colon using an endoscope 76 76 $109
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 51 51 $144
00813 Anesthesia for procedure on small and large bowel using an endoscope 14 14 $175

In context: peer comparison

Among 1 peers in this city , average services per provider: 67. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$129
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Medtronic, Inc. 1 $104.70
Salix Pharmaceuticals, a division of Bausch Health US, LLC 1 $24.01

By nature of payment

Food and Beverage
$129

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Brennan's medical specialty?
Dr. Karen Brennan practices Registered Nurse in Rockport, ME.
Where does Dr. Karen Brennan practice?
Dr. Karen Brennan practices at 6 Glen Cove Dr, Rockport, ME 048564240. Office phone: 2079218215.
What is Dr. Karen Brennan's NPI?
Dr. Karen Brennan's National Provider Identifier (NPI) is 1023162328, issued by NPPES.
What procedures does Dr. Karen Brennan commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for exam of colon using an endoscope (HCPCS 00812); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.