Doctor profile · Federal record

Dr. Sothy Pheng, MD

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Fullerton, CA

  • NPI 1083697007
  • Accepts Medicare
  • 22 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2961 Oakberry CT
Fullerton, CA 928354304
(978) 551-8088
Mailing address
Po Box 3446
Fullerton, CA 928343446

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
September 9, 2020
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #C132666 · Massachusetts #220489
Medicaid
MA #2086948

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083697007. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,857
Distinct HCPCS
5
Medicare allowed
$368,925
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 2,356 266 $125
99239 Hospital discharge day management, more than 30 minutes 208 198 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 144 133 $182
99291 Critical care, first 30-74 minutes 75 19 $222
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 74 17 $83

In context: peer comparison

Among 14 peers in this city , average services per provider: 146. This provider delivers 20× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$100
Transactions
5
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, Inc 4 $76.05
Kestra Medical Technology Services, Inc. 1 $23.78

By nature of payment

Food and Beverage
$100

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
256
Patients
223
Total drug cost
$13,345
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 31 23 $280
Furosemide Generic 28 26 $128
Potassium Chloride Generic 25 23 $809
Atorvastatin Calcium Generic 23 21 $153
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 20 20 $1,119
Cefuroxime (Cefuroxime Axetil) Brand 18 18 $450
Eliquis (Apixaban) Brand 16 13 $9,054
Ondansetron Odt (Ondansetron) Brand 16 16 $331
Amlodipine Besylate Generic 15 13 $127
Carvedilol Generic 15 15 $101

Frequently asked questions

Auto-generated from federal data
What is Dr. Sothy Pheng's medical specialty?
Dr. Sothy Pheng practices Internal Medicine Physician in Fullerton, CA.
Where does Dr. Sothy Pheng practice?
Dr. Sothy Pheng practices at 2961 Oakberry CT, Fullerton, CA 928354304. Office phone: 9785518088.
What is Dr. Sothy Pheng's NPI?
Dr. Sothy Pheng's National Provider Identifier (NPI) is 1083697007, issued by NPPES.
Does Dr. Sothy Pheng accept Medicare assignment?
Yes. Dr. Sothy Pheng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sothy Pheng 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.