Sydney Shuo-Yi Guo, MD
Vascular Surgery Physician · Ventura, CA
Sydney Shuo-Yi Guo, MD is a vascular surgery physician with a practice address in Ventura, California, and NPI 1619922291, issued on May 23, 2006. Check the license (California A68397, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sydney Shuo-Yi Guo
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License numbers
- A68397 CA
0101239726 VA
Self-reported in NPPES; status is on the state search - Practice location
- 100 North Brent Street, Ventura, CA 93003
- Phone
- (805) 643-3330
- Enumerated
- May 23, 2006
- Record last updated
- Jun 21, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (805) 643-3331
- Medicaid ID
- 010280338 VA
- Medicare enrollment
- Enrolled (PECOS I20050421000437); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 580 in California → Look up another NPI →
Verify Sydney Shuo-Yi Guo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A68397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% more Medicare Part D claims than the average vascular surgery physician in 2024
279 Medicare Part D claims for 123 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 67 claims were for opioids.
Most prescribed
- Clopidogrel69 claims
- Hydrocodone-Acetaminophen55 claims
- Atorvastatin Calcium40 claims
- Eliquis35 claims
- Lidocaine-Prilocaine20 claims
- Gabapentin17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $152.52
4 payments; by number, the most common kind was food and beverage; the largest payer was W. L. Gore & Associates, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kevin M Casey MD ApmcVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sydney Shuo-Yi Guo among 580 vascular surgery physician records in California
Sydney Shuo-Yi Guo, MD is one of 580 vascular surgery physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1997 · median 2003 among the 411 with a school on file
- Record last updated2013 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
All 580 in California → Every provider in Ventura → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- David Blitzer, M.D.Ventura, CA 930031275996142
- Li Sheng Kong, M.D.Ventura, CA 930031891764775
- Christopher Skillern, MDVentura, CA 930031205936697
- Stephen Lee, MDOxnard, CA 930351891151684
- Siddharth Agarwal, M.D.Oxnard, CA 930361407078496
- Gregory Albaugh, D.O.Oxnard, CA 930361811936982
- John Baber, M.D.Oxnard, CA 930361750607453
- Kevin Major, M.D.Oxnard, CA 930361457383366
Common questions
What is Sydney Shuo-Yi Guo, MD's NPI number?
Sydney Shuo-Yi Guo, MD's National Provider Identifier (NPI) is 1619922291, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sydney Shuo-Yi Guo, MD located?
The NPPES record lists a practice address at 100 North Brent Street, Ventura, CA, 93003. Phone: (805) 643-3330. Providers update this record themselves, so call before visiting.
How can I verify Sydney Shuo-Yi Guo, MD's license?
NPPES lists California license number A68397, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sydney Shuo-Yi Guo, MD prescribe under Medicare Part D?
In 2024, Sydney Shuo-Yi Guo, MD had 279 Medicare Part D claims for 123 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Sydney Shuo-Yi Guo, MD's MIPS final score?
The 2023 MIPS final score is 88.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.