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MACKENZIE ALI STIFF LCSW
NPI 1356150064
Social Worker - Clinical in Missoula, MT

Active since January 06, 2025PECOS EnrolledAccepts Medicare Assignment
405 S 1ST ST W, MISSOULA, MT 59801(406) 541-8472 Get Directions Write a Review

NPPES record last updated: January 6, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mackenzie Ali Stiff Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MACKENZIE ALI STIFF LCSW (NPI 1356150064) is an individual clinical provider in Missoula, Montana, licensed in Montana (BBH-LCSW-LIC-78383) and active in the NPI registry since January 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1356150064
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMACKENZIE ALI STIFFCredential: LCSW
Location Address405 S 1ST ST WMissoula, MT 59801-1850
Mailing Address209 Hickory St Apt 302Missoula, MT 59801-1927 · (406) 580-7050
Phone(406) 541-8472
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateJanuary 6, 2025
NPPES CertifiedJanuary 6, 2025
✔ NPI 1356150064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MT · BBH-LCSW-LIC-78383
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedSocial WorkerTaxonomy 104100000X
405 S 1ST ST W, Missoula, MT 59801
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mackenzie Ali Stiff Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5991294175
PECOS Enrollment IDI20251028003750
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $56.81 – $172.26
Typical copayment $0.00 (range $14.20 – $43.06)
Most-billed visit code NA
Established Patient
$70.82 typical visit price
range $18.24 – $140.32
Typical copayment $17.70 (range $4.56 – $35.08)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DANIEL JON MICHAEL SALOIS MA, LCPC
Counselor (Mental Health)
405 S 1ST ST W
MISSOULA, MT 59801
Missoula County (406) 541-8472
TAMARACK GRIEF RESOURCE CENTER INC
Counselor
405 S 1ST ST W
MISSOULA, MT 59801
Missoula County (406) 541-8472
MOLLY MURPHY LCPC
Counselor (Mental Health)
405 S 1ST ST W
MISSOULA, MT 59801
Missoula County (406) 541-8472

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mackenzie Stiff's NPI number?

The NPI number for Mackenzie Stiff is 1356150064. It was assigned to this individual provider in the NPPES registry on January 6, 2025.

Where is Mackenzie Stiff located?

Mackenzie Stiff practices at 405 S 1st St W, Missoula, MT 59801. The listed phone number is (406) 541-8472.

What is Mackenzie Stiff's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Mackenzie Stiff enrolled in Medicare?

Yes. Mackenzie Stiff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mackenzie Stiff accept?

Health plans from Blue Cross and Blue Shield of Montana list Mackenzie Stiff as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mackenzie Stiff was last updated on January 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.