Doctor profile · Federal record

Dr. Stephanie Ossowski

Hematology & Oncology Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · San Diego, CA

  • NPI 1417301482
  • Accepts Medicare
  • 10 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4647 Zion Ave
San Diego, CA 921202507
(877) 236-0333

Credentials & registration

NPPES · NUCC
NPI registered
April 2016 — 10 yrs on file
Profile last updated
June 20, 2025
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #150580

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417301482. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
63
Distinct HCPCS
1
Medicare allowed
$160
HCPCS Description Services Patients Avg allowed
J7030 Infusion, normal saline solution , 1000 cc 63 19 $3

In context: peer comparison

Among 34 peers in San Diego Hematology & Oncology Physician, average services per provider: 650. This provider delivers 0.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
934
Patients
212
Total drug cost
$3,157,129
Drug Type Claims Patients Total cost
Dexamethasone Generic 167 50 $3,325
Lenalidomide Generic 145 20 $1,419,857
Acyclovir Generic 97 22 $2,066
Prednisone Generic 64 31 $783
Ondansetron Hcl Generic 58 24 $421
Brukinsa (Zanubrutinib) Brand 55 0 $571,232
Tagrisso (Osimertinib Mesylate) Brand 55 0 $905,733
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 54 21 $901
Xarelto (Rivaroxaban) Brand 49 0 $22,008
Imatinib Mesylate Generic 38 0 $3,719

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephanie Ossowski's medical specialty?
Dr. Stephanie Ossowski practices Hematology & Oncology Physician in San Diego, CA.
Where does Dr. Stephanie Ossowski practice?
Dr. Stephanie Ossowski practices at 4647 Zion Ave, San Diego, CA 921202507. Office phone: 8772360333.
What is Dr. Stephanie Ossowski's NPI?
Dr. Stephanie Ossowski's National Provider Identifier (NPI) is 1417301482, issued by NPPES.
Does Dr. Stephanie Ossowski accept Medicare assignment?
Yes. Dr. Stephanie Ossowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephanie Ossowski commonly perform?
Top Medicare-reported procedures in 2023: Infusion, normal saline solution , 1000 cc (HCPCS J7030). Source: CMS Medicare Physician & Other Practitioners file.