Registry data as of Aug 27, 2026

Brian Kirschner, M.D.

Pediatric Adolescent Medicine Physician · Valencia, CA

Brian Kirschner, M.D. is a pediatric adolescent medicine physician with a practice address in Valencia, California, and NPI 1821095449, issued on Jun 29, 2005. Check the license (California A68827, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1821095449
Name
Brian Kirschner
Credential
M.D.
Primary taxonomy
Pediatric Adolescent Medicine Physician 2080A0000X
License number
A68827 CA
Self-reported in NPPES; status is on the state search
Practice location
27867 Smyth Dr, Valencia, CA 91355
Phone
(661) 294-2229
Enumerated
Jun 29, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 27867 Smyth Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kathy Brockett, M.D.Pediatric Adolescent Medicine Physician1588661193
  2. Mary Ellen McCormick, MDPediatric Adolescent Medicine Physician1770783847
  3. Michael Schoenwetter, M.D.Pediatric Adolescent Medicine Physician1750388369
  4. Loraine Stern, M.D.Pediatric Adolescent Medicine Physician1770580383
  5. Rebecca Whitney Mandel, M.D.Pediatric Adolescent Medicine Physician1083695605

Verify Brian Kirschner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A68827
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Industry payments in 2024: $181.56

3 payments, mostly food and beverage; the largest payer was Mirum Pharmaceuticals, Inc.. The 873 providers of this specialty with any payment received $478.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Kirschner$181.56
  2. Specialty average$478.30

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Pediatric Adolescent Medicine Physician providers in California

There are 254 pediatric adolescent medicine physician records in California.

Other pediatric adolescent medicine physician records in California

  1. William Adelman, M.D.Orange, CA1831191386
  2. Shelley Aggarwal, MDPalo Alto, CA1013029586
  3. Elsa Aguilar, M.D.Anaheim, CA1922133354
  4. Saverio Aita, M.D.Napa, CA1003132325
  5. Kaneez Ali, PAPerris, CA1639225154
  6. Agnes Alikpala, M.D.San Francisco, CA1306919568
  7. Joanne Allport, M.D., M.P.H.Benicia, CA1811096332
  8. Ramin Amani, MDVista, CA1659366292
  9. Sudha Amatya, M.D.San Diego, CA1790830511
  10. Seth Ammerman, MDHealdsburg, CA1831290154

Common questions

What is Brian Kirschner, M.D.'s NPI number?

Brian Kirschner, M.D.'s National Provider Identifier (NPI) is 1821095449, issued on Jun 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Brian Kirschner, M.D. located?

The NPPES record lists a practice address at 27867 Smyth Dr, Valencia, CA, 91355. Phone: (661) 294-2229. Providers update this record themselves, so call before visiting.

How can I verify Brian Kirschner, M.D.'s license?

NPPES lists California license number A68827, 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.