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

Mr. Istvan Carl Feldman, MS, LMHC, SUDP

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1932743093

Mr. Istvan Carl Feldman, MS, LMHC, SUDP is a Mental Health Counselor in Spokane, Washington. Qualified in 2019, 7 years ago. Practices with Mental Health Specialty Group PA, a 679-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
7
Licensed in
WA
In the registry since
2019
Specialties on file
3
What do these letters mean?
MS — Master of Science
A graduate science degree.
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

101 W Cataldo Ave Ste 300
Spokane, WA 99201-3202
Phone: (509) 474-1783
Fax: (509) 505-4239
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1400 112th Ave Se Ste 100, Bellevue, WA 98004-6901 — (315) 873-2936
  • 104 S Freya St Ste 212, Spokane, WA 99202-4871 — (509) 368-9863

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence LH61259757 (WA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence CP61069003 (WA)
Psychologist Taxonomy 103T00000X

Record details

NPI number1932743093
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , LMHC , SUDP
Sole proprietorNo
NPI enumeratedNovember 1, 2019
Last updated in NPPESMarch 7, 2026
Certification dateMarch 7, 2026

Medicare enrollment

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

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Mental Health Specialty Group Pa — 679 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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