Lonnie Barbach
Clinical Psychologist · Mill Valley, CA
Lonnie Barbach is a clinical psychologist with a practice address in Mill Valley, California, and NPI 1982012217, issued on Jul 30, 2014. Check the license (California PSY4838, 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
- Lonnie Barbach
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY4838 CA
Self-reported in NPPES; status is on the state search - Practice location
- 60 Palm Way, Mill Valley, CA 94941
- Phone
- (415) 383-0755
- Enumerated
- Jul 30, 2014
- Entity
- Type 1 · individual
Verify Lonnie Barbach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY4838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
18 clinical psychologist records list a Mill Valley practice address
They are 18 of the 653 NPPES records with a Mill Valley practice address, and 11,200 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 18 in Mill Valley → All 11,200 in California → Every provider in Mill Valley →
Other clinical psychologist records in California
- Tanya Aaen, PH.D.Martinez, CA1477518561
- Jack Aamot, PSY.D.Napa, CA1770711210
- Elena Abalo-Dehmer, PH.D.Anaheim, CA1942406368
- Brian Abary, PSY.DLos Angeles, CA1538354832
- Tatevik Abaryan, PH.D.Pacoima, CA1952682619
- Liana Abascal, PH.D.San Diego, CA1073740569
- Jessica Abdalla, PHDWalnut Creek, CA1558069211
- Mohamed Abdallah, PSY.DEl Centro, CA1912430851
- Megan Abdolrashidi, PSYDGilroy, CA1093293094
- Qutayba Abdullatif, PH.D.Pasadena, CA1134667751
Common questions
What is Lonnie Barbach's NPI number?
Lonnie Barbach's National Provider Identifier (NPI) is 1982012217, issued on Jul 30, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Lonnie Barbach located?
The NPPES record lists a practice address at 60 Palm Way, Mill Valley, CA, 94941. Phone: (415) 383-0755. Providers update this record themselves, so call before visiting.
How can I verify Lonnie Barbach's license?
NPPES lists California license number PSY4838, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.