NPPES file of Aug 9, 2026

Matthew Deardorff, MD, PHD

Clinical Genetics (M.D.) Physician · Los Angeles, CA

Matthew Deardorff, MD, PHD is a clinical genetics (m.d.) physician with a practice address in Los Angeles, California, and NPI 1164541181, issued on Mar 29, 2007. Check the license (California C168510, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164541181
Name
Matthew Deardorff
Credential
MD, PHD
Primary taxonomy
Clinical Genetics (M.D.) Physician 207SG0201X
License numbers
C168510 CA
MD421927 PA
Self-reported in NPPES; status is on the state search
Practice location
4650 W Sunset Blvd # MS 43, Los Angeles, CA 90027
Phone
(877) 543-9522
Enumerated
Mar 29, 2007
Record last updated
Apr 30, 2020 (not updated in 6 years: call before relying on the address or phone)
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 Matthew Deardorff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C168510
    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.

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Industry payments in 2024: $29.15

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 306 providers of this specialty with any payment received $12,333.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Deardorff$29
  2. Specialty average$12,333

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

Matthew Deardorff among 151 clinical genetics (m.d.) physician records in California

Matthew Deardorff, MD, PHD is one of 151 clinical genetics (m.d.) physician records with a practice address in California. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 38% newer
  • In a Medicare fileYes · 55% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2020 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207SG0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Genetics (M.D.) Physician providers in California

There are 151 clinical genetics (m.d.) physician records in California.

The 8 clinical genetics (m.d.) physician records with the nearest ZIP codes

  1. Sridevi Abboy, MDLos Angeles, CA 900271962688853
  2. Richard Boles, MDLos Angeles, CA 900271902998511
  3. Valairat Dhamcharee, M.D.Los Angeles, CA 900271952528945
  4. Bridget Fernandez, MDLos Angeles, CA 900271255916896
  5. Catherine Karimov, M.D.Los Angeles, CA 900271952424079
  6. Linda Randolph, MDLos Angeles, CA 900271255427324
  7. Nancy Shinno, MDLos Angeles, CA 900271962579896
  8. George Tiller, MDLos Angeles, CA 900271821169715

Common questions

What is Matthew Deardorff, MD, PHD's NPI number?

Matthew Deardorff, MD, PHD's National Provider Identifier (NPI) is 1164541181, issued on Mar 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Deardorff, MD, PHD located?

The NPPES record lists a practice address at 4650 W Sunset Blvd # MS 43, Los Angeles, CA, 90027. Phone: (877) 543-9522. Providers update this record themselves, so call before visiting.

How can I verify Matthew Deardorff, MD, PHD's license?

NPPES lists California license number C168510, 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.