Doctor profile · Federal record

Dr. Karen Peterson, NP

Nurse Practitioner · Leominster, MA

  • NPI 1003877911
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
48 Nelson Street
Leominster, MA 01453
(978) 466-4396
fax (978) 466-4029
Mailing address
1 Valley View Cir
Rutland, MA 015431374

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
January 20, 2016
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Massachusetts #205602
Medicaid
MA #0325601

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003877911. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
212
Distinct HCPCS
2
Medicare allowed
$32,335
HCPCS Description Services Patients Avg allowed
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 180 73 $160
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 32 28 $110

In context: peer comparison

Among 4 peers in this city , average services per provider: 101. This provider delivers 2.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,035
Patients
406
Total drug cost
$75,945
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 122 48 $2,931
Furosemide Generic 100 41 $822
Lisinopril Generic 91 36 $1,605
Levothyroxine Sodium Generic 84 31 $1,328
Gabapentin Generic 80 41 $1,591
Omeprazole Generic 78 31 $1,972
Amlodipine Besylate Generic 75 37 $1,145
Metoprolol Succinate Generic 73 26 $2,374
Pantoprazole Sodium Generic 63 14 $1,309
Eliquis (Apixaban) Brand 58 16 $57,724

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Peterson's medical specialty?
Dr. Karen Peterson practices Nurse Practitioner in Leominster, MA.
Where does Dr. Karen Peterson practice?
Dr. Karen Peterson practices at 48 Nelson Street, Leominster, MA 01453. Office phone: 9784664396.
What is Dr. Karen Peterson's NPI?
Dr. Karen Peterson's National Provider Identifier (NPI) is 1003877911, issued by NPPES.
What procedures does Dr. Karen Peterson commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with high level of medical decision making (HCPCS 99350); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349). Source: CMS Medicare Physician & Other Practitioners file.