Doctor profile · Federal record

Dr. Olga McLellan

Nurse Practitioner · Charlestown, MA

  • NPI 1942834858
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
15 Tufts St
Charlestown, MA 021292711
(857) 238-1100
Mailing address
26 Wellsmere RD
Roslindale, MA 021313427

Credentials & registration

NPPES · NUCC
NPI registered
February 2020 — 6 yrs on file
Profile last updated
May 13, 2023
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Massachusetts #236422

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942834858. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
17
Distinct HCPCS
1
Medicare allowed
$2,023
HCPCS Description Services Patients Avg allowed
99443 Telephone medical discussion with physician, 21-30 minutes 17 13 $119

In context: peer comparison

Among 1 peers in this city , average services per provider: 17. This provider delivers 1.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
505
Patients
185
Total drug cost
$10,632
Drug Type Claims Patients Total cost
Rosuvastatin Calcium Generic 58 21 $1,169
Lisinopril Generic 54 21 $751
Metformin Hcl Generic 53 22 $967
Gabapentin Generic 41 18 $639
Amlodipine Besylate Generic 39 20 $408
Atorvastatin Calcium Generic 36 17 $774
Levothyroxine Sodium Generic 34 13 $817
Hydrochlorothiazide Generic 31 13 $205
Fluticasone Propionate Generic 30 12 $476
Omeprazole Generic 27 16 $706

Frequently asked questions

Auto-generated from federal data
What is Dr. Olga McLellan's medical specialty?
Dr. Olga McLellan practices Nurse Practitioner in Charlestown, MA.
Where does Dr. Olga McLellan practice?
Dr. Olga McLellan practices at 15 Tufts St, Charlestown, MA 021292711. Office phone: 8572381100.
What is Dr. Olga McLellan's NPI?
Dr. Olga McLellan's National Provider Identifier (NPI) is 1942834858, issued by NPPES.
Does Dr. Olga McLellan accept Medicare assignment?
Dr. Olga McLellan does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Olga McLellan commonly perform?
Top Medicare-reported procedures in 2023: Telephone medical discussion with physician (HCPCS 99443). Source: CMS Medicare Physician & Other Practitioners file.