What is Sydney Guo's specialty?

Sydney Guo (NPI 1619922291) is a Medicare-billing provider whose primary specialty is Vascular Surgery in Ventura, CA.

Where does Sydney Guo practice?

Sydney Guo practices in Ventura, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1619922291.

How much does Medicare pay Sydney Guo?

Sydney Guo (NPI 1619922291) received approximately $297K in total Medicare Part B payments, serving 482 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619922291

Sydney GuoMD

Vascular SurgeryVentura, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,617

Unique beneficiaries

—

Total services

2,258

Distinct HCPCS

Medicare payment

$224K

Peer benchmark

Total Medicare services vs. 399 Vascular Surgery providers in CA — top quintile (cohort median 763).

PRESCRIBING · PART D · 2024

Total Rx claims

248

Beneficiaries

—

Total drug cost

$45K

Distinct drugs

Brand share

77.0%

Top prescribed drugs

Clopidogrel Bisulfate69 claims

Hydrocodone/Acetaminophen55 claims

Atorvastatin Calcium40 claims

Apixaban35 claims

Lidocaine/Prilocaine20 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

100.0

Cost

74.9

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$348

Payment records

By payment type

Food and Beverage$348

Top paying entities

Food and Beverage$348

REFERRAL NETWORK

Where Sydney Guo's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 36 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
COMMUNITY MEMORIAL HEALTH SYSTEM	165	1,037
Unilab Corporation Clinical Laboratory · West Hills, CA	122	599
DIGNITY HEALTH	53	176
American Medical Response Ambulance Service Inc Ambulance Service Provider · Moorpark, CA	35	94
Nicholas Hanson Diagnostic Radiology · Salem, OR	32	71
Saumil Gandhi Nephrology · Santa Paula, CA	31	280
Steven Ledesma Nephrology · Oxnard, CA	27	221
Christopher Skillern Vascular Surgery · Ventura, CA	27	73
John Tesman Emergency Medicine · Ventura, CA	26	451
Kyu Choi Diagnostic Radiology · Ventura, CA	26	75
William Deruso Diagnostic Radiology · Santa Barbara, CA	25	47
DIGNITY HEALTH	24	170

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events