Doctor profile · Federal record

Dr. Sydney Guo, MD

Vascular Surgery Physician (CMS: Vascular Surgery) · Vascular Surgery Physician · Surgery Physician · Specialist · Ventura, CA

  • NPI 1619922291
  • Accepts Medicare
  • MIPS 80.0 / 100 · 2023
  • 29 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 North Brent Street, Ste 201
Ventura, CA 93003
(805) 643-3330
fax (805) 643-3331

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
June 21, 2013
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
2086S0129X — NUCC code
State licenses (2)
California #A68397 · Virginia #0101239726
Medicaid
VA #010280338

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619922291. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,280
Distinct HCPCS
10
Medicare allowed
$294,611
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 553 298 $99
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 172 128 $13
93990 Ultrasound of hemodialysis access 166 93 $149
76937 Ultrasonic guidance for blood vessel access 148 115 $15
93922 Ultrasound study of arm and leg arteries 129 94 $94
93925 Ultrasound of leg arteries or artery grafts 106 81 $278
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 98 47 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 97 86 $140
99203 New patient office or other outpatient visit, 30-44 minutes 95 95 $122
93970 Ultrasound study of arm or leg veins with compression and maneuvers 77 73 $215

In context: peer comparison

Among 3 peers in Ventura Vascular Surgery Physician, average services per provider: 84. This provider delivers 27× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$153
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
W. L. Gore & Associates, INC. 2 $121.21
Boston Scientific Corporation 1 $16.77
Medtronic, INC. 1 $14.54

By nature of payment

Food and Beverage
$153

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
192
Patients
59
Total drug cost
$36,529
Drug Type Claims Patients Total cost
Clopidogrel (Clopidogrel Bisulfate) Brand 55 28 $1,319
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 39 31 $202
Lidocaine-Prilocaine (Lidocaine/Prilocaine) Brand 24 0 $415
Eliquis (Apixaban) Brand 21 0 $20,483
Atorvastatin Calcium Generic 20 0 $573
Gabapentin Generic 17 0 $631
Xarelto (Rivaroxaban) Brand 16 0 $12,907

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sydney Guo's medical specialty?
Dr. Sydney Guo practices Vascular Surgery Physician in Ventura, CA.
Where does Dr. Sydney Guo practice?
Dr. Sydney Guo practices at 100 North Brent Street, Ventura, CA 93003. Office phone: 8056433330.
What is Dr. Sydney Guo's NPI?
Dr. Sydney Guo's National Provider Identifier (NPI) is 1619922291, issued by NPPES.
Does Dr. Sydney Guo accept Medicare assignment?
Yes. Dr. Sydney Guo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sydney Guo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152); Ultrasound of hemodialysis access (HCPCS 93990). Source: CMS Medicare Physician & Other Practitioners file.