Doctor profile · Federal record

Dr. June Peng, MD

Surgical Oncology Physician (CMS: Surgical Oncology) · Surgical Oncology Physician · Walnut Creek, CA

  • NPI 1124321252
  • Accepts Medicare
  • MIPS 71.8 / 100 · 2023
  • 14 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1479 Ygnacio Valley RD Ste 200
Walnut Creek, CA 945982954
(925) 296-7340
Additional location
1825 4Th St
San Francisco, CA 941432350
(415) 353-3000

Credentials & registration

NPPES · NUCC
NPI registered
December 2010 — 16 yrs on file
Profile last updated
November 21, 2023
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
2086X0206X — NUCC code
State licenses (2)
California #191994 · Pennsylvania #MD468184
Medicaid
PA #1036594280001

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124321252. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
68
Distinct HCPCS
4
Medicare allowed
$7,162
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 21 20 $64
99204 New patient office or other outpatient visit, 45-59 minutes 20 20 $117
99214 Established patient office or other outpatient visit, 30-39 minutes 16 12 $95
99205 New patient office or other outpatient visit, 60-74 minutes 11 11 $177

In context: peer comparison

Among 1 peers in Walnut Creek Surgical Oncology Physician, average services per provider: 17. This provider delivers 4.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$130
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 1 $71.99
Ethicon US, LLC 1 $32.51
AstraZeneca Pharmaceuticals Lp 1 $25.80

By nature of payment

Food and Beverage
$130

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
17
Patients
0
Total drug cost
$51,927
Drug Type Claims Patients Total cost
Creon (Lipase/Protease/Amylase) Brand 17 0 $51,927

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. June Peng's medical specialty?
Dr. June Peng practices Surgical Oncology Physician in Walnut Creek, CA.
Where does Dr. June Peng practice?
Dr. June Peng practices at 1479 Ygnacio Valley RD Ste 200, Walnut Creek, CA 945982954. Office phone: 9252967340.
What is Dr. June Peng's NPI?
Dr. June Peng's National Provider Identifier (NPI) is 1124321252, issued by NPPES.
Does Dr. June Peng accept Medicare assignment?
Yes. Dr. June Peng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. June Peng commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.