DR. GRANT MATTHEW WISWELL MD, DDS
NPI 1497917132
Dentist in Missoula, MT

Q: What is Grant Wiswell's NPI number?

The NPI number for Grant Wiswell is 1497917132. It was assigned to this individual provider in the NPPES registry on June 25, 2008.

Q: What is Grant Wiswell's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Q: When was this NPI record last updated?

The NPPES record for Grant Wiswell was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.

Active since June 25, 2008PECOS Enrolled

3020 S RESERVE ST STE C, MISSOULA, MT 59801(406) 541-2180(406) 541-2188 Get Directions Write a Review

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 7, 2025, Jan 18, 2016 (2 updates tracked since 2016).

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About Dr. Grant Matthew Wiswell Md, Dds NPPES

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

DR. GRANT MATTHEW WISWELL MD, DDS (NPI 1497917132) is an individual dentist in Missoula, Montana, licensed in Montana (2433) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497917132

Entity TypeIndividualMale

Primary Taxonomy122300000X

Provider Legal NameDR. GRANT MATTHEW WISWELLCredential: MD, DDS

Location Address3020 S RESERVE ST STE CMissoula, MT 59801-7652

Mailing Address3020 S Reserve St Ste CMissoula, MT 59801-7652 · (406) 541-2180 · Fax (406) 541-2188

Phone(406) 541-2180

Fax(406) 541-2188

Sole ProprietorYes

Enumeration DateJune 25, 2008

Last NPPES UpdateOctober 7, 20252 updates tracked since enumeration

NPPES CertifiedOctober 7, 2025

✔ NPI 1497917132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyDentistDental Providers

Taxonomy Code122300000X

License✔ Licensed in MT · 2433

Definition

A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

Also ListedDentist · Oral and Maxillofacial SurgeryTaxonomy 1223S0112X · License 2433 (MT)

Also ListedOral & Maxillofacial SurgeryTaxonomy 204E00000X · License 12707 (MT)

3020 S RESERVE ST STE C, Missoula, MT 59801

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Grant Matthew Wiswell Md, Dds is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

$87.97 typical visit price

range $56.81 – $172.26

Typical copayment $21.99 (range $14.20 – $43.06)

Most-billed visit code 99203

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.

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 Grant Wiswell's NPI number?

The NPI number for Grant Wiswell is 1497917132. It was assigned to this individual provider in the NPPES registry on June 25, 2008.

Where is Grant Wiswell located?

Grant Wiswell practices at 3020 S Reserve St Ste C, Missoula, MT 59801. The listed phone number is (406) 541-2180.

What is Grant Wiswell's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Grant Wiswell enrolled in Medicare?

Yes. Grant Wiswell is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Grant Wiswell was last updated on October 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.