Doctor profile · Federal record

Dr. Marlena Osowski

Registered Nurse (CMS: Nurse Practitioner) · Boston, MA

  • NPI 1386335776
  • Accepts Medicare
  • 3 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
850 Washington St
Boston, MA 021111521
(617) 636-5000
Mailing address
22 Manor Ln
Oxford, MA 015401502

Credentials & registration

NPPES · NUCC
NPI registered
May 2023 — 3 yrs on file
Year of graduation
2023 — 3 yrs since
Specialty taxonomy
163W00000X — NUCC code
State license (1)
Massachusetts #RN2354068

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386335776. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$393
Transactions
15
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Takeda Pharmaceuticals U.S.A., Inc. 4 $127.28
Celgene Corporation 4 $84.00
Regeneron Healthcare Solutions, Inc. 1 $37.21
Gilead Sciences, Inc. 1 $32.32
PFIZER INC. 1 $26.44
ABBVIE INC. 1 $25.11
Lilly USA, LLC 1 $21.75
Intercept Pharmaceuticals, Inc. 1 $20.73
Novo Nordisk Inc 1 $18.15

By nature of payment

Food and Beverage
$393

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marlena Osowski's medical specialty?
Dr. Marlena Osowski practices Registered Nurse in Boston, MA.
Where does Dr. Marlena Osowski practice?
Dr. Marlena Osowski practices at 850 Washington St, Boston, MA 021111521. Office phone: 6176365000.
What is Dr. Marlena Osowski's NPI?
Dr. Marlena Osowski's National Provider Identifier (NPI) is 1386335776, issued by NPPES.
Does Dr. Marlena Osowski accept Medicare assignment?
Yes. Dr. Marlena Osowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.