Steven W. Musto, M.D.
Internal Medicine Physician · Freeland, WA
Steven W. Musto, M.D. is an internal medicine physician with a practice address in Freeland, Washington, and NPI 1497900419, issued on Nov 18, 2008. Check the license (Washington MD00034938, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Steven W. Musto
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00034938 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1638 E Main St, Freeland, WA 98249
- Phone
- (360) 331-6525
- Enumerated
- Nov 18, 2008
- Record last updated
- Feb 12, 2024
- Medicaid ID
- 8210262 WA
- Medicare enrollment
- Enrolled (PECOS I20090506000253); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Verify Steven W. Musto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00034938Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average internal medicine physician in 2024
873 Medicare Part D claims for 65 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril86 claims
- Atorvastatin Calcium82 claims
- Amlodipine Besylate60 claims
- Levothyroxine Sodium32 claims
- Tamsulosin Hcl32 claims
- Fluticasone Propionate31 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.
Steven W. Musto among 3,079 internal medicine physician records in Washington
Steven W. Musto, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% 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 54% of them.
- NPI issued2008 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1984 · median 2006 among the 1,852 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 internal medicine physician records list a practice address in Freeland
They are 3 of the 94 NPPES records with a practice address in Freeland, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Freeland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ann Cutcher, M.D.Freeland, WA 982491619167715
- Sally Stansfield, M.D.Freeland, WA 982491518335413
- Regina Dwyer, M.D.Friday Harbor, WA 982501588873137
- William Gunderson, MDFriday Harbor, WA 982501205151990
- Susan Slaughter-Jones, MDFerndale, WA 982481346206265
- Diane Staves, M.D.Everson, WA 982471669521704
- Glen Weller, M.D.Eastsound, WA 982451932250875
- Bennett Pafford, M.D.La Conner, WA 982571255568366
Common questions
What is Steven W. Musto, M.D.'s NPI number?
Steven W. Musto, M.D.'s National Provider Identifier (NPI) is 1497900419, issued on Nov 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Steven W. Musto, M.D. located?
The NPPES record lists a practice address at 1638 E Main St, Freeland, WA, 98249. Phone: (360) 331-6525. Providers update this record themselves, so call before visiting.
How can I verify Steven W. Musto, M.D.'s license?
NPPES lists Washington license number MD00034938, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven W. Musto, M.D. prescribe under Medicare Part D?
In 2024, Steven W. Musto, M.D. had 873 Medicare Part D claims for 65 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.