Doctor profile · Federal record

Dr. Oleg Krijanovski, MD, PHD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Medical Oncology Physician · Medical Oncology Physician · Berkeley, CA

  • NPI 1841376704
  • Accepts Medicare
  • 41 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
2001 Dwight Way
Berkeley, CA 947042608
(510) 204-1591
fax (510) 204-6440
Additional location
1500 East Medical Center Dr, B1 Floor Cancer & Geriatrics Ctr Recp B
Ann Arbor, MI 481090912
(734) 936-9020
Additional location
3687 Mt Diablo Blvd Ste 200
Lafayette, CA 945493746
(866) 681-0745
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
February 7, 2025
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State licenses (2)
California #A105568 · Michigan #4301074606

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841376704. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,850
Distinct HCPCS
8
Medicare allowed
$236,372
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 628 227 $110
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 481 53 $135
99215 Established patient office or other outpatient visit, 40-54 minutes 348 129 $163
99213 Established patient office or other outpatient visit, 20-29 minutes 224 159 $75
99205 New patient office or other outpatient visit, 60-74 minutes 64 64 $205
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 62 40 $197
38221 Biopsy of bone marrow 22 20 $81
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 21 12 $90

In context: peer comparison

Among 4 peers in this city , average services per provider: 1,768. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$506
Transactions
9
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, Inc. 4 $190.13
Novartis Pharmaceuticals Corporation 2 $131.22
ABBVIE INC. 1 $112.50
Takeda Pharmaceuticals U.S.A., Inc. 1 $48.62
Celgene Corporation 1 $24.01

By nature of payment

Food and Beverage
$506

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
883
Patients
160
Total drug cost
$1,922,210
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 156 28 $114,766
Acyclovir Generic 150 33 $3,455
Dexamethasone Generic 70 22 $1,400
Xarelto (Rivaroxaban) Brand 64 15 $57,974
Hydroxyurea Generic 63 0 $1,953
Potassium Chloride Generic 44 12 $859
Promacta (Eltrombopag Olamine) Brand 40 0 $597,827
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 40 0 $115
Duloxetine Hcl Generic 39 0 $993
Prochlorperazine Maleate Generic 39 26 $498

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Oleg Krijanovski's medical specialty?
Dr. Oleg Krijanovski practices Hematology & Oncology Physician in Berkeley, CA.
Where does Dr. Oleg Krijanovski practice?
Dr. Oleg Krijanovski practices at 2001 Dwight Way, Berkeley, CA 947042608. Office phone: 5102041591.
What is Dr. Oleg Krijanovski's NPI?
Dr. Oleg Krijanovski's National Provider Identifier (NPI) is 1841376704, issued by NPPES.
Does Dr. Oleg Krijanovski accept Medicare assignment?
Yes. Dr. Oleg Krijanovski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oleg Krijanovski commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.