NPPES file of Aug 9, 2026

Mark McQuinn

Case Manager/Care Coordinator · Gardena, CA

Mark McQuinn is a case manager/care coordinator with a practice address in Gardena, California, and NPI 1740159409, issued on Oct 31, 2025. Check the license with the California board that licenses this profession; 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
1740159409
Name
Mark McQuinn
Primary taxonomy
Case Manager/Care Coordinator 171M00000X
Practice location
1346 W 155TH St, Gardena, CA 90247
Phone
(310) 800-0439
Enumerated
Oct 31, 2025
Record last updated
Oct 31, 2025
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 1346 W 155TH St

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

  1. Marques BinnsCase Manager/Care Coordinator1295604957
  2. Dayna Moore, LPCCMental Health Counselor1811533516
  3. Nadine Ross-HollinquestCase Manager/Care Coordinator1508702721
  4. Tiffany ThomasCase Manager/Care Coordinator1881483006

Verify Mark McQuinn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
Find 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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Mark McQuinn among 22,803 case manager/care coordinator records in California

Mark McQuinn is one of 22,803 case manager/care coordinator records with a practice address in California. under 1% 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 2025, is newer than 94% of them.

  • NPI issued2025 · 94% of these records are older, 2% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2025 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 171M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

30 case manager/care coordinator records list a practice address in Gardena

They are 30 of the 4,627 NPPES records with a practice address in Gardena, and 22,803 case manager/care coordinator records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 case manager/care coordinator records with the nearest ZIP codes

  1. Marques BinnsGardena, CA 902471295604957
  2. Adrian DixonGardena, CA 902471386417269
  3. Delphina KnappGardena, CA 902471912028036
  4. Elizabeth LopezGardena, CA 902471679847735
  5. Christopher MarkhamGardena, CA 902471538645569
  6. Josephine MartherusGardena, CA 902471396167359
  7. Nadine Ross-HollinquestGardena, CA 902471508702721
  8. Tiffany ThomasGardena, CA 902471881483006

Common questions

What is Mark McQuinn's NPI number?

Mark McQuinn's National Provider Identifier (NPI) is 1740159409, issued on Oct 31, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Mark McQuinn located?

The NPPES record lists a practice address at 1346 W 155TH St, Gardena, CA, 90247. Phone: (310) 800-0439. Providers update this record themselves, so call before visiting.

How can I verify Mark McQuinn's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

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.