Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Mark Fieldson, MFT

Individual provider Marriage & Family Therapist · NPI 1225196454

Mr. Mark Fieldson, MFT is a Marriage & Family Therapist in Los Alamitos, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

4132 Katella Ave 104
Los Alamitos, CA 90720-3426
Phone: (562) 754-3005
Fax: (562) 598-5997
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence MFC25467 (CA)

Record details

NPI number1225196454
Entity typeIndividual (Type 1)
GenderMale
Credentials MFT
Sole proprietorYes
NPI enumeratedDecember 4, 2006
Last updated in NPPESJuly 8, 2007
Mailing address12875 Martha Ann Dr, Los Alamitos, CA 90720-4923

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