Doctor profile · Federal record

Dr. Sharon Siwiec, NP

Adult Health Nurse Practitioner · Nurse Practitioner · Boston, MA

  • NPI 1548226731
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
133 Brookline Ave
Boston, MA 022153904
(617) 421-1000

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
March 7, 2021
Specialty taxonomy
363LA2200X — NUCC code
State license (1)
Massachusetts #130321
Medicaid
MA #0372510

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548226731. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
20
Distinct HCPCS
1
Medicare allowed
$1,080
HCPCS Description Services Patients Avg allowed
99441 Telephone medical discussion with physician, 5-10 minutes 20 20 $54

In context: peer comparison

Among 72 peers in this city , average services per provider: 79. This provider delivers 0.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
20
Patients
20
Total drug cost
$205
Drug Type Claims Patients Total cost
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 20 20 $205

Frequently asked questions

Auto-generated from federal data
What is Dr. Sharon Siwiec's medical specialty?
Dr. Sharon Siwiec practices Adult Health Nurse Practitioner in Boston, MA.
Where does Dr. Sharon Siwiec practice?
Dr. Sharon Siwiec practices at 133 Brookline Ave, Boston, MA 022153904. Office phone: 6174211000.
What is Dr. Sharon Siwiec's NPI?
Dr. Sharon Siwiec's National Provider Identifier (NPI) is 1548226731, issued by NPPES.
What procedures does Dr. Sharon Siwiec commonly perform?
Top Medicare-reported procedures in 2023: Telephone medical discussion with physician (HCPCS 99441). Source: CMS Medicare Physician & Other Practitioners file.