GARABED NISHANIAN, M.D., A MEDICAL CORPORATION
GARABED NISHANIAN, M.D., A MEDICAL CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1841557576, based in Mission Viejo, CA. It is classified under Vascular Surgery Physician.
Getting there
The practice address on file is 26800 CROWN VALLEY PKWY STE 420, Mission Viejo, CA 92691. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A52537 | CA | Vascular Surgery Physician primary |
This provider holds licence A52537 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Vascular Surgery covers
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart. NUCC Health Care Provider Taxonomy, code 2086S0129X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1841557576 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 19, 2012 |
| Last updated | Apr 19, 2012 |
| Status | Active |
| Practice address |
26800 CROWN VALLEY PKWY STE 420 Mission Viejo, CA 92691 (949) 429-8840 Fax (949) 347-9647 |
| Mailing address |
4740 LOS FELIZ BLVD Los Angeles, CA 90027 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 4 | 1 | 5 | 5 | 7 | 5 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 8 | 1 | 1 | 5 | 5 | 5 | 5 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.