Garabed P. Nishanian, MD
Vascular Surgery Physician · Irvine, CA
Garabed P. Nishanian, MD is a vascular surgery physician with a practice address in Irvine, California, and NPI 1336297290, issued on Jan 8, 2007. Check the license (California A52537, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Garabed P. Nishanian
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- A52537 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16100 Sand Canyon Ave, Irvine, CA 92618
- Phone
- (949) 429-8840
- Enumerated
- Jan 8, 2007
- Record last updated
- Oct 15, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (949) 347-9647
- Medicare enrollment
- Enrolled (PECOS I20050325000784); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 580 in California → Look up another NPI →
Also registered at 16100 Sand Canyon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Garabed P. Nishanian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average vascular surgery physician in 2024
42 Medicare Part D claims for 23 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of 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 MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $258.49
5 payments; by number, the most common kind was food and beverage; the largest payer was Silk Road Medical, 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.
Garabed P. Nishanian among 580 vascular surgery physician records in California
Garabed P. Nishanian, 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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1992 · median 2003 among the 411 with a school on file
- Record last updated2015 · 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 Irvine → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Marcos Kuroki, M.D., PH.D.Irvine, CA 926181235525460
- Maraya Altuwaijri, M.D.Laguna Woods, CA 926371316925761
- Amit Karmur, D.O.Wildomar, CA 925951700134830
- Bolaji Nafiu, M.D.Wildomar, CA 925951003927393
- Brian Tiu, M.D.Wildomar, CA 925951902190226
- Yara Rothermel Gorski, M.D.Temecula, CA 925921417049156
- Rajesh Lal, M.D.Huntington Beach, CA 926471699863225
- Niren Angle, M.D.Laguna Hills, CA 926531720045412
Common questions
What is Garabed P. Nishanian, MD's NPI number?
Garabed P. Nishanian, MD's National Provider Identifier (NPI) is 1336297290, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Garabed P. Nishanian, MD located?
The NPPES record lists a practice address at 16100 Sand Canyon Ave, Irvine, CA, 92618. Phone: (949) 429-8840. Providers update this record themselves, so call before visiting.
How can I verify Garabed P. Nishanian, MD's license?
NPPES lists California license number A52537, 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 Garabed P. Nishanian, MD prescribe under Medicare Part D?
In 2024, Garabed P. Nishanian, MD had 42 Medicare Part D claims for 23 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Garabed P. Nishanian, MD's MIPS final score?
The 2023 MIPS final score is 0 of 100. 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.