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

Mr. John Wolff, MA, LMFT

Individual provider Marriage & Family Therapist · NPI 1902069818

Mr. John Wolff, MA, LMFT is a Marriage and Family Therapist in Duluth, Minnesota. Qualified in 2007, 19 years ago. Practices with Human Development Center, a 40-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
19
Licensed in
MN
In the registry since
2008
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

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Practice location Address checks out

120 W 2nd St
Duluth, MN 55802-2017
Phone: (218) 728-4491
Fax: (218) 302-8698
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 40 11th St, Cloquet, MN 55720-1817 — (218) 879-4559
  • 810 E 4th St, Duluth, MN 55805-2147 — (218) 728-4491
  • 1401 East 1st Street, Duluth, MN 55805-2407 — (218) 728-4491
  • 2230 Como Ave, Saint Paul, MN 55108-1720 — (651) 255-2233
  • 325 11th Ave, Two Harbors, MN 55616-1300 — (218) 834-5520

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 1840 (MN)

Record details

NPI number1902069818
Entity typeIndividual (Type 1)
GenderMale
Credentials MA , LMFT
Sole proprietorNo
NPI enumeratedJuly 10, 2008
Last updated in NPPESSeptember 18, 2024
Certification dateSeptember 18, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMARRIAGE AND FAMILY THERAPIST
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Human Development Center — 40 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Duluth