Kathryn J. Johnston, M.D.
Dermatology Physician · Torrance, CA
Kathryn J. Johnston, M.D. is a dermatology physician with a practice address in Torrance, California, and NPI 1952344475, issued on Jun 13, 2006. Check the license (California G042206, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathryn J. Johnston
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- G042206 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3565 Del Amo Blvd, Torrance, CA 90503
- Phone
- (310) 214-0811
- Enumerated
- Jun 13, 2006
- Record last updated
- Mar 27, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (310) 371-5262
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 3565 Del Amo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathryn J. Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G042206Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $16.00
1 payment: food and beverage; the largest payer was Leo Pharma Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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.
Kathryn J. Johnston among 2,083 dermatology physician records in California
Kathryn J. Johnston, 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. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2008 · 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.
All 2,083 in California → Every provider in Torrance → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Adrienne Brandriss, M.D.Torrance, CA 905031376734954
- Gary Chuang, M.D.Torrance, CA 905031013199868
- Reyhaneh Hamidi, MDTorrance, CA 905031144470162
- Takako Iwasaki, M.D.Torrance, CA 905031639240237
- Stephanie Orr, M.D.Torrance, CA 905031568755502
- Phillip Valentine, M.D.Torrance, CA 905031306884416
- Richard Yamamoto, M.D.Torrance, CA 905031003859802
- Shilpa Hamman, M.D.Torrance, CA 905021073830626
Common questions
What is Kathryn J. Johnston, M.D.'s NPI number?
Kathryn J. Johnston, M.D.'s National Provider Identifier (NPI) is 1952344475, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn J. Johnston, M.D. located?
The NPPES record lists a practice address at 3565 Del Amo Blvd, Torrance, CA, 90503. Phone: (310) 214-0811. Providers update this record themselves, so call before visiting.
How can I verify Kathryn J. Johnston, M.D.'s license?
NPPES lists California license number G042206, 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. 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.