Jan Slack, MFT
Marriage & Family Therapist · La Mesa, CA
Jan Slack, MFT is a marriage & family therapist with a practice address in La Mesa, California, and NPI 1083791271, issued on Nov 1, 2006. Check the license (California MFC47977, 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
- Jan Slack
- Credential
- MFT
- Primary taxonomy
- Marriage & Family Therapist 106H00000X
- License number
- MFC47977 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5480 Baltimore Dr, La Mesa, CA 91942
- Phone
- (619) 335-5373
- Enumerated
- Nov 1, 2006
- Entity
- Type 1 · individual
Also registered at 5480 Baltimore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kazaran Barkawi-Buck, MA., LMFTMarriage & Family Therapist1790702694
- Karen Cross, PHDClinical Psychologist1568550234
- Carol Dawidowicz, MFTMarriage & Family Therapist1528102175
- Heather Gibson, M.A, LMFTMarriage & Family Therapist1295270080
- Kristin Herzberg Purdy, PH.D.Psychologist1467825125
- Charles Long, MFTMarriage & Family Therapist1740271337
Verify Jan Slack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license MFC47977Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
165 marriage & family therapist records list a La Mesa practice address
They are 165 of the 2,168 NPPES records with a La Mesa practice address, and 52,961 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 165 in La Mesa → All 52,961 in California → Every provider in La Mesa →
Other marriage & family therapist records in California
- Lili Aames, LMFTSanta Fe Springs, CA1689836165
- Lynn Aamot, LMFTEl Dorado Hills, CA1508255027
- Nathan Aanderud, LMFTTorrance, CA1689036907
- Alex AaronSherman Oaks, CA1578442620
- Bianca Aaron, LMFT, APCCSan Francisco, CA1316459605
- Kelley Aaron, MFTLos Angeles, CA1699068866
- Ruth Aaron, MS, JD, MFTClaremont, CA1316029697
- Terry Aaron, MFTBurbank, CA1386801173
- Azadeh Aarons, LMFTThousand Oaks, CA1679343974
- Bianca Aarons, MA,LMFTSan Francisco, CA1699286732
Common questions
What is Jan Slack, MFT's NPI number?
Jan Slack, MFT's National Provider Identifier (NPI) is 1083791271, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jan Slack, MFT located?
The NPPES record lists a practice address at 5480 Baltimore Dr, La Mesa, CA, 91942. Phone: (619) 335-5373. Providers update this record themselves, so call before visiting.
How can I verify Jan Slack, MFT's license?
NPPES lists California license number MFC47977, 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.