Joel S. Koransky, M.D.
Dermatology Physician · Santa Clara, CA
Joel S. Koransky, M.D. is a dermatology physician with a practice address in Santa Clara, California, and NPI 1245252543, issued on Jul 24, 2006. Check the license (California G31401, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joel S. Koransky
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- G31401 CA
Self-reported in NPPES; status is on the state search - Practice location
- 710 Lawrence Expy, Santa Clara, CA 95051
- Phone
- (408) 851-4650
- Enumerated
- Jul 24, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 710 Lawrence Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joel S. Koransky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G31401Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Joel S. Koransky among 2,083 dermatology physician records in California
Joel S. Koransky, M.D. is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,083 in California → Every provider in Santa Clara → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Mu Chu, M.D.Santa Clara, CA 950511679775365
- Haiyan Deng, MDSanta Clara, CA 950511376620229
- Lisa HisawSanta Clara, CA 950511619395597
- Jane Kwan, M.D.Santa Clara, CA 950511407973902
- Melvin LeeSanta Clara, CA 950511124283056
- Pamela Parke, MDSanta Clara, CA 950511306922232
- Ngoc Pham, MDSanta Clara, CA 950511154408094
- Jocelyn Thein, MDSanta Clara, CA 950511801975941
Common questions
What is Joel S. Koransky, M.D.'s NPI number?
Joel S. Koransky, M.D.'s National Provider Identifier (NPI) is 1245252543, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joel S. Koransky, M.D. located?
The NPPES record lists a practice address at 710 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-4650. Providers update this record themselves, so call before visiting.
How can I verify Joel S. Koransky, M.D.'s license?
NPPES lists California license number G31401, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.