Doctor profile · Federal record

Dr. Chung Cuiffo, M.D.

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

  • NPI 1659630556
  • Accepts Medicare
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1100 W Stewart Dr
Orange, CA 928683849
(714) 771-8000
fax (714) 937-7083
Additional location
845 W la Veta Ave Ste 105
Orange, CA 928683930
(714) 289-6565
fax (714) 289-6571
Additional location
117 Cary Hall, 3435 Main Street
Buffalo, NY 142143023
(716) 829-2012

Credentials & registration

NPPES · NUCC
NPI registered
May 2012 — 14 yrs on file
Profile last updated
October 21, 2020
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A131324

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659630556. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
227
Distinct HCPCS
2
Medicare allowed
$33,836
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 166 156 $137
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 61 58 $182

In context: peer comparison

Among 42 peers in Orange Internal Medicine Physician, average services per provider: 103. This provider delivers 2.2× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Chung Cuiffo's medical specialty?
Dr. Chung Cuiffo practices Internal Medicine Physician in Orange, CA.
Where does Dr. Chung Cuiffo practice?
Dr. Chung Cuiffo practices at 1100 W Stewart Dr, Orange, CA 928683849. Office phone: 7147718000.
What is Dr. Chung Cuiffo's NPI?
Dr. Chung Cuiffo's National Provider Identifier (NPI) is 1659630556, issued by NPPES.
Does Dr. Chung Cuiffo accept Medicare assignment?
Yes. Dr. Chung Cuiffo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chung Cuiffo commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.