Doctor profile · Federal record

Dr. Sophie Sun, MD, PHD

Internal Medicine Physician (CMS: Hospitalist) · Pediatrics Physician · Loma Linda, CA

  • NPI 1144726829
  • Accepts Medicare
  • MIPS 76.4 / 100 · 2023
  • 8 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11234 Anderson St
Loma Linda, CA 92354
(877) 558-6248
Mailing address
11234 Anderson St # Mc-1516
Loma Linda, CA 923542804

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
August 18, 2022
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A163986

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144726829. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
248
Distinct HCPCS
4
Medicare allowed
$31,113
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 170 69 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 34 34 $177
99239 Hospital discharge day management, more than 30 minutes 27 27 $117
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 17 13 $81

In context: peer comparison

Among 44 peers in Loma Linda Internal Medicine Physician, average services per provider: 98. This provider delivers 2.5× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Sophie Sun's medical specialty?
Dr. Sophie Sun practices Internal Medicine Physician in Loma Linda, CA.
Where does Dr. Sophie Sun practice?
Dr. Sophie Sun practices at 11234 Anderson St, Loma Linda, CA 92354. Office phone: 8775586248.
What is Dr. Sophie Sun's NPI?
Dr. Sophie Sun's National Provider Identifier (NPI) is 1144726829, issued by NPPES.
Does Dr. Sophie Sun accept Medicare assignment?
Yes. Dr. Sophie Sun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sophie Sun commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.