NPPES file of Aug 9, 2026

Marc O. Costley

Attendant Care Provider · Oakdale, CA

Marc O. Costley is an attendant care provider with a practice address in Oakdale, California, and NPI 1811547771, issued on Sep 12, 2019. 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
1811547771
Name
Marc O. Costley
Primary taxonomy
Attendant Care Provider 3747A0650X
Practice location
2728 Oakhurst Dr, Oakdale, CA 95361
Phone
(209) 840-3456
Enumerated
Sep 12, 2019
Record last updated
Sep 12, 2019 (not updated in 7 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 Marc O. Costley 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
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Attendant Care Provider providers in California

There are 917 attendant care provider records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 917 in California → Every provider in Oakdale →

Other attendant care provider records in California

  1. Yolanda AbadiePomona, CA1780234716
  2. Tigist AbeSan Diego, CA1639821580
  3. Neil AbellonPomona, CA1497464150
  4. Alicia AbramenkoRedding, CA1255974812
  5. Marilu AcostaSan Diego, CA1699322156
  6. Ellen AcquafreddaEscondido, CA1427712405
  7. Shontanese AdamsCompton, CA1740823749
  8. Highian AguileraEscondido, CA1093692824
  9. Cynthia AguirreBarstow, CA1699506006
  10. Mualla AkdenizYorba Linda, CA1538719323

Common questions

What is Marc O. Costley's NPI number?

Marc O. Costley's National Provider Identifier (NPI) is 1811547771, issued on Sep 12, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Marc O. Costley located?

The NPPES record lists a practice address at 2728 Oakhurst Dr, Oakdale, CA, 95361. Phone: (209) 840-3456. Providers update this record themselves, so call before visiting.

How can I verify Marc O. Costley'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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.