Grant Matthew Wiswell, MD, DDS
Dentist · Missoula, MT
Grant Matthew Wiswell, MD, DDS is a dentist with a practice address in Missoula, Montana, and NPI 1497917132, issued on Jun 25, 2008. Check the license (Montana 2433, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Grant Matthew Wiswell
- Credential
- MD, DDS
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 2433 MT
12707 MT
Self-reported in NPPES; status is on the state search - Practice location
- 3020 S Reserve St Ste C, Missoula, MT 59801
- Phone
- (406) 541-2180
- Enumerated
- Jun 25, 2008
- Record last updated
- Oct 7, 2025
- Fax
- (406) 541-2188
- Entity
- Type 1 · individual
8 nearest dentist records → All 266 in Montana → Look up another NPI →
Verify Grant Matthew Wiswell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 2433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20.9 times the Medicare Part D claims of the average dentist in 2024
1,795 Medicare Part D claims for 436 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 400 claims were for opioids.
Most prescribed
- Chlorhexidine Gluconate582 claims
- Amoxicillin296 claims
- Ibuprofen280 claims
- Acetaminophen-Codeine171 claims
- Hydrocodone-Acetaminophen155 claims
- Amoxicillin-Clavulanate Potass118 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $128.06
3 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Grant Matthew Wiswell among 266 dentist records in Montana
Grant Matthew Wiswell, MD, DDS is one of 266 dentist records with a practice address in Montana. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 45% of them.
- NPI issued2008 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2025 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Montana
There are 266 dentist records in Montana.
All 266 in Montana → Every provider in Missoula → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Brett Felton, D.M.D.Missoula, MT 598011972798825
- Lynden Heitz, DDSMissoula, MT 598011295748606
- George Hoaglin, DMDMissoula, MT 598011639205404
- Jackie Jones, DMDMissoula, MT 598011740203504
- Rowan McQuarrie, D.D.S.Missoula, MT 598011386759744
- Melinda Meng, D.D.S.Missoula, MT 598011982814885
- Jonathan Nelson, D.M.D.Missoula, MT 598011801237920
- James Ouellette, D.D.S.Missoula, MT 598011891853727
Common questions
What is Grant Matthew Wiswell, MD, DDS's NPI number?
Grant Matthew Wiswell, MD, DDS's National Provider Identifier (NPI) is 1497917132, issued on Jun 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Grant Matthew Wiswell, MD, DDS located?
The NPPES record lists a practice address at 3020 S Reserve St Ste C, Missoula, MT, 59801. Phone: (406) 541-2180. Providers update this record themselves, so call before visiting.
How can I verify Grant Matthew Wiswell, MD, DDS's license?
NPPES lists Montana license number 2433, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Grant Matthew Wiswell, MD, DDS prescribe under Medicare Part D?
In 2024, Grant Matthew Wiswell, MD, DDS had 1,795 Medicare Part D claims for 436 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.