Doctor profile · Federal record

Dr. Karen Hoang, NP

Nurse Practitioner · Family Nurse Practitioner · Westford, MA

  • NPI 1134647449
  • 9 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
133 Littleton RD Ste 202
Westford, MA 018863198
(978) 577-1946
Additional location
1941 Johnson Ave Ste 101
San Luis Obispo, CA 934014154
(805) 782-8844
fax (805) 549-6985
Additional location
1941 Johnson Ave Ste 102
San Luis Obispo, CA 934014174
(805) 782-8844
fax (805) 549-6986
Show 1 more location
Additional location
41 Mall RD
Burlington, MA 018053198
(781) 744-8000
Mailing address
18 Buena Vista Ave
Salem, MA 019701030

Credentials & registration

NPPES · NUCC
NPI registered
September 2017 — 9 yrs on file
Profile last updated
December 30, 2024
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Massachusetts #RN2262084

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134647449. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
377
Distinct HCPCS
5
Medicare allowed
$38,130
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 234 177 $130
99214 Established patient office or other outpatient visit, 30-39 minutes 55 50 $87
93288 Evaluation of single, dual, multiple lead or leadless pacemaker system 48 42 $18
93280 Programming of dual lead pacemaker system 26 25 $34
99443 Telephone medical discussion with physician, 21-30 minutes 14 13 $88

In context: peer comparison

Among 1 peers in this city , average services per provider: 75. This provider delivers 5.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$325
Transactions
4
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Nevro Corp. 3 $246.17
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $78.46

By nature of payment

Food and Beverage
$325

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
143
Patients
41
Total drug cost
$50,988
Drug Type Claims Patients Total cost
Metoprolol Succinate Generic 64 27 $1,310
Eliquis (Apixaban) Brand 33 14 $31,785
Flecainide Acetate Generic 18 0 $841
Amiodarone Hcl Generic 15 0 $406
Xarelto (Rivaroxaban) Brand 13 0 $16,645

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Hoang's medical specialty?
Dr. Karen Hoang practices Nurse Practitioner in Westford, MA.
Where does Dr. Karen Hoang practice?
Dr. Karen Hoang practices at 133 Littleton RD Ste 202, Westford, MA 018863198. Office phone: 9785771946.
What is Dr. Karen Hoang's NPI?
Dr. Karen Hoang's National Provider Identifier (NPI) is 1134647449, issued by NPPES.
What procedures does Dr. Karen Hoang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Evaluation of single, dual, multiple lead or leadless pacemaker system (HCPCS 93288). Source: CMS Medicare Physician & Other Practitioners file.