Doctor profile · Federal record

Dr. Geoffrey Liang, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Mission Hills, CA

  • NPI 1083064091
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11333 Sepulveda Blvd
Mission Hills, CA 913451116
(877) 634-3196
Mailing address
Po Box 9602
Mission Hills, CA 913469602

Credentials & registration

NPPES · NUCC
NPI registered
June 2016 — 10 yrs on file
Profile last updated
August 28, 2019
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A17086

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083064091. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
546
Distinct HCPCS
4
Medicare allowed
$75,124
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 355 119 $125
99239 Hospital discharge day management, more than 30 minutes 90 88 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 67 67 $182
99291 Critical care, first 30-74 minutes 34 16 $222

In context: peer comparison

Among 32 peers in Mission Hills Internal Medicine Physician, average services per provider: 108. This provider delivers 5.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$278
Transactions
11
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 10 $250.20
Shionogi INC 1 $27.42

By nature of payment

Food and Beverage
$278

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
58
Patients
45
Total drug cost
$489
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 16 15 $169
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 16 16 $68
Pantoprazole Sodium Generic 15 14 $129
Amlodipine Besylate Generic 11 0 $122

Frequently asked questions

Auto-generated from federal data
What is Dr. Geoffrey Liang's medical specialty?
Dr. Geoffrey Liang practices Internal Medicine Physician in Mission Hills, CA.
Where does Dr. Geoffrey Liang practice?
Dr. Geoffrey Liang practices at 11333 Sepulveda Blvd, Mission Hills, CA 913451116. Office phone: 8776343196.
What is Dr. Geoffrey Liang's NPI?
Dr. Geoffrey Liang's National Provider Identifier (NPI) is 1083064091, issued by NPPES.
Does Dr. Geoffrey Liang accept Medicare assignment?
Yes. Dr. Geoffrey Liang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Geoffrey Liang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.