NPPES file of Aug 9, 2026

Douglas Greg Kahn, MD

Anatomic Pathology & Clinical Pathology Physician · Sylmar, CA

Douglas Greg Kahn, MD is an anatomic pathology & clinical pathology physician with a practice address in Sylmar, California, and NPI 1922156546, issued on Jan 8, 2007. Check the license (California G44973, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922156546
Name
Douglas Greg Kahn
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
G44973 CA
Self-reported in NPPES; status is on the state search
Practice location
14445 Oliver View Drive, Sylmar, CA 91342
Phone
(818) 364-1555
Enumerated
Jan 8, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(818) 364-4065
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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Verify Douglas Greg Kahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G44973
    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

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Douglas Greg Kahn among 1,554 anatomic pathology & clinical pathology physician records in California

Douglas Greg Kahn, MD is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% 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 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 43% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in California

There are 1,554 anatomic pathology & clinical pathology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Simon Backer, MDSylmar, CA 913421487283925
  2. Paul Liu, M.D.Sylmar, CA 913421013044981
  3. John Sacoolidge, MDSylmar, CA 913421447285820
  4. Joanna Young, MDSylmar, CA 913421912399783
  5. Brian Kay, D.O.Mission Hills, CA 913451396036976
  6. Gretchen Sampson, M.D.Mission Hills, CA 913451063406528
  7. John Yamashita, M.D.Mission Hills, CA 913451558355024
  8. Basel Kashlan, M.D.Valencia, CA 913551295983278

Common questions

What is Douglas Greg Kahn, MD's NPI number?

Douglas Greg Kahn, MD's National Provider Identifier (NPI) is 1922156546, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Greg Kahn, MD located?

The NPPES record lists a practice address at 14445 Oliver View Drive, Sylmar, CA, 91342. Phone: (818) 364-1555. Providers update this record themselves, so call before visiting.

How can I verify Douglas Greg Kahn, MD's license?

NPPES lists California license number G44973, 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.