Mary Carol Klein, LCSW
Clinical Social Worker · Costa Mesa, CA
Mary Carol Klein, LCSW is a clinical social worker with a practice address in Costa Mesa, California, and NPI 1417965567, issued on Aug 4, 2006. Check the license (California LCS10447, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Carol Klein
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCS10447 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3151 Airway Ave, Costa Mesa, CA 92626
- Phone
- (714) 957-1234
- Enumerated
- Aug 4, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 957-1234
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 3151 Airway Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Carol Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCS10447Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Carol Klein among 36,261 clinical social worker records in California
Mary Carol Klein, LCSW is one of 36,261 clinical social worker records with a practice address in California. 6% 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 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 91% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2007 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
92 clinical social worker records list a practice address in Costa Mesa
They are 92 of the 4,286 NPPES records with a practice address in Costa Mesa, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 36,261 in California → Every provider in Costa Mesa → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Naomi BabcockCosta Mesa, CA 926261619004736
- Gail Bembinster, LCSWCosta Mesa, CA 926261487677431
- Ying-Ling ChaoCosta Mesa, CA 926261861655045
- Regina Dupre, LCSWCosta Mesa, CA 926261568672681
- Butch Froberg, LCSWCosta Mesa, CA 926261508956871
- Jacqueline Hoagland, LCSWCosta Mesa, CA 926261225277676
- Patricia Holden, LCSW, PSY DCosta Mesa, CA 926261174624688
- Carlita Hughes-Darby, LCSWCosta Mesa, CA 926261518047372
Common questions
What is Mary Carol Klein, LCSW's NPI number?
Mary Carol Klein, LCSW's National Provider Identifier (NPI) is 1417965567, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Carol Klein, LCSW located?
The NPPES record lists a practice address at 3151 Airway Ave, Costa Mesa, CA, 92626. Phone: (714) 957-1234. Providers update this record themselves, so call before visiting.
How can I verify Mary Carol Klein, LCSW's license?
NPPES lists California license number LCS10447, as entered by the provider. 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.