Doctor profile · Federal record

Dr. Theodore Wun, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Sacramento, CA

  • NPI 1932181609
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2279 45Th Street
Sacramento, CA 958172229
(916) 734-5959
fax (916) 703-5265
Mailing address
4501 X St Ste 3016
Sacramento, CA 958172229

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
August 28, 2019
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #G056276

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932181609. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
123
Distinct HCPCS
3
Medicare allowed
$14,115
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 76 22 $123
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 33 13 $82
99215 Established patient office or other outpatient visit, 40-54 minutes 14 12 $149

In context: peer comparison

Among 14 peers in Sacramento Hematology & Oncology Physician, average services per provider: 120. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$9,064
Transactions
8
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 7 $8,984.01
Regeneron Pharmaceuticals, INC. 1 $80.05

By nature of payment

Consulting Fee
$6,040
Travel and Lodging
$2,265
Food and Beverage
$759

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
22
Patients
0
Total drug cost
$237,121
Drug Type Claims Patients Total cost
Deferasirox Generic 11 0 $58,537
Oxbryta (Voxelotor) Brand 11 0 $178,584

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Theodore Wun's medical specialty?
Dr. Theodore Wun practices Hematology & Oncology Physician in Sacramento, CA.
Where does Dr. Theodore Wun practice?
Dr. Theodore Wun practices at 2279 45Th Street, Sacramento, CA 958172229. Office phone: 9167345959.
What is Dr. Theodore Wun's NPI?
Dr. Theodore Wun's National Provider Identifier (NPI) is 1932181609, issued by NPPES.
Does Dr. Theodore Wun accept Medicare assignment?
Yes. Dr. Theodore Wun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Theodore Wun commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.