Istvan Carl Feldman, MS, LMHC, SUDP

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

LH61259757 Issued in WA

Practice address

101 W Cataldo Ave Ste 300
Spokane, WA 99201-3202

Phone

(509) 474-1783

Fax

(509) 505-4239

NPI assigned

Nov 1, 2019

Last updated

Mar 7, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Mental Health Counselor

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mental Health Specialty Group PAGroup PAC ID 8921466228, 726 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Mental Health Specialty Group PA

  dba Rula Health

  • Mental Health Counselor
  • Durham, NC
  • NPI 1801472634

  WA

  Medicare reassignment Care Compare group NPD
• American Behavioral Health Systems, Inc.

  • Substance Abuse Rehabilitation Facility
  • Chehalis, WA
  • NPI 1598123226
  NPD (past)
• American Behavioral Health Systems, Inc.

  • Substance Abuse Rehabilitation Facility
  • Spokane Valley, WA
  • NPI 1962991661
  NPD (past)
• Joon Care Medical Corporation

  • Mental Health Counselor
  • Seattle, WA
  • NPI 1073279907
  NPD (past)
• Mastermind Psychology, P.S.

  • Psychologist
  • Spokane, WA
  • NPI 1205486461
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1572566400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772841600000",
    "number": "1932743093",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "101 W CATALDO AVE STE 300",
            "city": "SPOKANE",
            "state": "WA",
            "postal_code": "992013202",
            "telephone_number": "509-474-1783",
            "fax_number": "509-505-4239"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 W CATALDO AVE STE 300",
            "city": "SPOKANE",
            "state": "WA",
            "postal_code": "992013202",
            "telephone_number": "509-474-1783",
            "fax_number": "509-505-4239"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "104 S Freya St Ste 212",
            "address_purpose": "LOCATION",
            "city": "Spokane",
            "state": "WA",
            "postal_code": "992024871",
            "country_code": "US",
            "telephone_number": "509-368-9863 x706",
            "fax_number": "509-587-1575",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1400 112th Ave SE Ste 100",
            "address_purpose": "LOCATION",
            "city": "Bellevue",
            "state": "WA",
            "postal_code": "980046901",
            "country_code": "US",
            "telephone_number": "315-873-2936",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FELDMAN",
        "first_name": "ISTVAN",
        "middle_name": "CARL",
        "name_prefix": "Mr.",
        "credential": "MS, LMHC, SUDP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-11-01",
        "last_updated": "2026-03-07",
        "certification_date": "2026-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "WA",
            "license": "CP61069003",
            "primary": false
        },
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "WA",
            "license": "LH61259757",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2077844",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Amanda Feidt
• Callie Feierabend
• Amelia Rosebud Feigner
• Genessee Feiler, RN
• Emily Skye Fejeran, RN
• Jordan Felgenhauer
• Judy Linn Felgenhauer, M.D.
• Rachel Ann Felgenhauer, PMHNP-BC, DNP
• Beejay Feliciano, MD
• Allison Felker, LMFT

• Mental Health Counselor in Spokane, WA
• Providers in Spokane, WA by specialty
• Mental Health Counselor in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.