Doctor profile · Federal record

Dr. Gerald Sugino, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Mission Viejo, CA

  • NPI 1427036284
  • Accepts Medicare
  • 44 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
26732 Crown Valley Pkwy Ste 170
Mission Viejo, CA 926916337
(949) 365-2444
fax (949) 365-2356
Additional location
26800 Crown Valley Pkwy, Suite 315
Mission Viejo, CA 926916384
(949) 364-6000
fax (949) 364-1204

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
November 10, 2021
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #G50977
Medicaid
CA #00G509770

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427036284. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,186
Distinct HCPCS
6
Medicare allowed
$96,598
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 675 196 $52
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 172 117 $83
99239 Hospital discharge day management, more than 30 minutes 153 148 $120
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 86 85 $183
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 72 69 $135
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 28 20 $125

In context: peer comparison

Among 22 peers in Mission Viejo Internal Medicine Physician, average services per provider: 176. This provider delivers 6.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$400
Transactions
15
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 4 $123.73
E.R. Squibb & Sons, L.L.C. 2 $63.25
Janssen Pharmaceuticals, INC 2 $56.00
Merck Sharp & Dohme LLC 2 $52.77
Novartis Pharmaceuticals Corporation 2 $44.13
Pfizer INC. 2 $38.38
Boehringer Ingelheim Pharmaceuticals, INC. 1 $22.05

By nature of payment

Food and Beverage
$400

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
27
Patients
27
Total drug cost
$502
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 14 14 $124
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 13 13 $378

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gerald Sugino's medical specialty?
Dr. Gerald Sugino practices Internal Medicine Physician in Mission Viejo, CA.
Where does Dr. Gerald Sugino practice?
Dr. Gerald Sugino practices at 26732 Crown Valley Pkwy Ste 170, Mission Viejo, CA 926916337. Office phone: 9493652444.
What is Dr. Gerald Sugino's NPI?
Dr. Gerald Sugino's National Provider Identifier (NPI) is 1427036284, issued by NPPES.
Does Dr. Gerald Sugino accept Medicare assignment?
Yes. Dr. Gerald Sugino accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gerald Sugino commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.