Susan Marie Mahoney, MD
Family Medicine Physician · Friday Harbor, WA
Susan Marie Mahoney, MD is a family medicine physician with a practice address in Friday Harbor, Washington, and NPI 1295848265, issued on Aug 16, 2006. Check the license (Washington MD00034157, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Susan Marie Mahoney
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00034157 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1117 Spring St, Friday Harbor, WA 98250
- Phone
- (360) 378-2141
- Enumerated
- Aug 16, 2006
- Record last updated
- Feb 4, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (360) 378-3655
- Medicaid IDs
- 1295848265 WA
8209199 WA - Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 1117 Spring St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Bishop, M.D.Family Medicine Physician1043369044
- Ruth Fothergill, M.D,Family Medicine Physician1316009178
- Roy Graves, MDEmergency Medicine Physician1689777609
- Mary Jo Groves, M.D.Family Medicine Physician1730124371
- William Gunderson, MDInternal Medicine Physician1205151990
- Steven HoangFamily Medicine Physician1285123323
Verify Susan Marie Mahoney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00034157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average family medicine physician in 2024
2,457 Medicare Part D claims for 290 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 51 claims were for opioids.
Most prescribed
- Atorvastatin Calcium180 claims
- Lisinopril139 claims
- Levothyroxine Sodium118 claims
- Amlodipine Besylate115 claims
- Losartan Potassium105 claims
- Simvastatin94 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.
Susan Marie Mahoney among 5,534 family medicine physician records in Washington
Susan Marie Mahoney, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2013 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family medicine physician records list a practice address in Friday Harbor
They are 9 of the 152 NPPES records with a practice address in Friday Harbor, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Friday Harbor → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Rachel Bishop, M.D.Friday Harbor, WA 982501043369044
- Ruth Fothergill, M.D,Friday Harbor, WA 982501316009178
- Mary Jo Groves, M.D.Friday Harbor, WA 982501730124371
- Steven HoangFriday Harbor, WA 982501285123323
- Lauren Kreiger, MDFriday Harbor, WA 982501699160655
- Jesse Nye, D.O.Friday Harbor, WA 982501093197782
- Lauren Olsen, M.D.Friday Harbor, WA 982501245642198
- Stacie Vilendrer, M.D.Friday Harbor, WA 982501215322698
Common questions
What is Susan Marie Mahoney, MD's NPI number?
Susan Marie Mahoney, MD's National Provider Identifier (NPI) is 1295848265, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan Marie Mahoney, MD located?
The NPPES record lists a practice address at 1117 Spring St, Friday Harbor, WA, 98250. Phone: (360) 378-2141. Providers update this record themselves, so call before visiting.
How can I verify Susan Marie Mahoney, MD's license?
NPPES lists Washington license number MD00034157, 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 Susan Marie Mahoney, MD prescribe under Medicare Part D?
In 2024, Susan Marie Mahoney, MD had 2,457 Medicare Part D claims for 290 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.