Doctor profile · Federal record

Dr. Cong Phan, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Specialist · Rancho Cucamonga, CA

  • NPI 1386778033
  • Accepts Medicare
  • MIPS 21.4 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
8235 Rochester Ave Ste 110
Rancho Cucamonga, CA 917300719
(909) 484-4900
fax (909) 781-2949
Additional location
4950 San Bernardino St Ste 107
Montclair, CA 917632328
(909) 963-0800
fax (909) 296-7999

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
September 27, 2024
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A780920

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386778033. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,194
Distinct HCPCS
10
Medicare allowed
$477,655
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 1,131 178 $121
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 531 150 $81
99215 Established patient office or other outpatient visit, 40-54 minutes 436 162 $185
99214 Established patient office or other outpatient visit, 30-39 minutes 422 160 $132
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 310 226 $176
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 227 114 $8
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 209 42 $109
G0316 Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th 192 154 $31
99239 Hospital discharge day management, more than 30 minutes 183 149 $117
99212 Established patient office or other outpatient visit, 10-19 minutes 162 88 $36

In context: peer comparison

Among 9 peers in Rancho Cucamonga Internal Medicine Physician, average services per provider: 161. This provider delivers 26× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$441
Transactions
15
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 1 $124.97
Janssen Pharmaceuticals, INC 4 $87.57
Lilly USA, LLC 3 $66.22
Boehringer Ingelheim Pharmaceuticals, INC. 2 $48.19
Sanofi-Aventis U.S. LLC 1 $24.15
Xeris Pharmaceuticals, INC. 1 $24.07
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $23.27
Phadia US INC. 1 $22.25
Merck Sharp & Dohme LLC 1 $20.67

By nature of payment

Food and Beverage
$441

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,740
Patients
1,339
Total drug cost
$78,338
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 486 160 $9,311
Amlodipine Besylate Generic 405 129 $6,134
Losartan Potassium Generic 352 119 $7,807
Gabapentin Generic 345 125 $12,131
Metformin Hcl Generic 294 108 $4,272
Levothyroxine Sodium Generic 291 77 $4,337
Pantoprazole Sodium Generic 270 119 $5,274
Furosemide Generic 191 63 $1,865
Carvedilol Generic 179 77 $2,735
Rosuvastatin Calcium Generic 172 65 $7,994

Frequently asked questions

Auto-generated from federal data
What is Dr. Cong Phan's medical specialty?
Dr. Cong Phan practices Internal Medicine Physician in Rancho Cucamonga, CA.
Where does Dr. Cong Phan practice?
Dr. Cong Phan practices at 8235 Rochester Ave Ste 110, Rancho Cucamonga, CA 917300719. Office phone: 9094844900.
What is Dr. Cong Phan's NPI?
Dr. Cong Phan's National Provider Identifier (NPI) is 1386778033, issued by NPPES.
Does Dr. Cong Phan accept Medicare assignment?
Yes. Dr. Cong Phan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cong Phan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.