Robert K. Olthoff, PHD, LMFT
Marriage & Family Therapist · Thousand Oaks, CA
Robert K. Olthoff, PHD, LMFT is a marriage & family therapist with a practice address in Thousand Oaks, California, and NPI 1730505538, issued on Mar 17, 2014. Check the license (California LMFT37050, 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
- Robert K. Olthoff
- Credential
- PHD, LMFT
- Primary taxonomy
- Marriage & Family Therapist 106H00000X
- License number
- LMFT37050 CA
Self-reported in NPPES; status is on the state search - Practice location
- 875 Teakwood CT, Thousand Oaks, CA 91320
- Phone
- (805) 376-0156
- Enumerated
- Mar 17, 2014
- Record last updated
- Mar 17, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →
Verify Robert K. Olthoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LMFT37050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert K. Olthoff among 59,889 marriage & family therapist records in California
Robert K. Olthoff, PHD, LMFT is one of 59,889 marriage & family therapist records with a practice address in California. 4% 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 2014, is newer than 44% of them.
- NPI issued2014 · 44% of these records are older, 52% newer
- In a Medicare fileNo · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2014 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
208 marriage & family therapist records list a practice address in Thousand Oaks
They are 208 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 59,889 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 59,889 in California → Every provider in Thousand Oaks → Marriage & Family Therapist nationwide →
The 8 marriage & family therapist records with the nearest ZIP codes
- Marina Alexander, M.S., MFTINewbury Park, CA 913201154647428
- Jennifer Anderson, M.S.Newbury Park, CA 913201083722060
- Michael Bailey, MS MFTNewbary Park, CA 913201598844193
- Geoffrey Buckley, M.S., M.DIV., PH.DNewbury Park, CA 913201922273051
- Mark Cady, M.S., MFTNewbury Park, CA 913201295972354
- Barbara Dobrin, PH.D, , MFCNewbury Park, CA 913201851446421
- Allison LiebermanNewbury Park, CA 913201588057335
- Marcela Malcolm, MFTNewbury Park, CA 913201134216468
Common questions
What is Robert K. Olthoff, PHD, LMFT's NPI number?
Robert K. Olthoff, PHD, LMFT's National Provider Identifier (NPI) is 1730505538, issued on Mar 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Robert K. Olthoff, PHD, LMFT located?
The NPPES record lists a practice address at 875 Teakwood CT, Thousand Oaks, CA, 91320. Phone: (805) 376-0156. Providers update this record themselves, so call before visiting.
How can I verify Robert K. Olthoff, PHD, LMFT's license?
NPPES lists California license number LMFT37050, 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.