Sherwin S. Foster, M.D.
Nephrology Physician · Hayden, ID
Sherwin S. Foster, M.D. is a nephrology physician with a practice address in Hayden, Idaho, and NPI 1720074990, issued on Sep 23, 2005. Check the license (Idaho M-10094, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Sherwin S. Foster
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- M-10094 ID
MD00049028 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1986 W Hayden Ave, Hayden, ID 83835
- Phone
- (208) 762-7760
- Enumerated
- Sep 23, 2005
- Record last updated
- Jun 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (208) 762-7740
- Medicaid IDs
- 8078889 ID
8080036 ID
8497588 WA
7144785 WA - Medicare enrollment
- Enrolled (PECOS I20071130000417); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 34 in Idaho → Look up another NPI →
Also registered at 1986 W Hayden Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laura Burgeson, PA-CPhysician Assistant1962467977
- Shaun Joshi, MDNephrology Physician1073629150
Verify Sherwin S. Foster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M-10094Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average nephrology physician in 2024
94 Medicare Part D claims for 34 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium12 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.
The MIPS final score for 2023 (Medicare payment program): 94.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- North Idaho Nephrology Associates IncHayden, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sherwin S. Foster among 34 nephrology physician records in Idaho
Sherwin S. Foster, M.D. is one of 34 nephrology physician records with a practice address in Idaho. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1994 · median 2002 among the 27 with a school on file
- Record last updated2021 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Idaho
There are 34 nephrology physician records in Idaho.
All 34 in Idaho → Every provider in Hayden → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Shaun Joshi, MDHayden, ID 838351073629150
- Scott Bieber, D.O.Coeur D Alene, ID 838141447452578
- Casey Cotant, M.D.Coeur D Alene, ID 838141427182781
- Tiana Jespersen Nizamic, MDCoeur D Alene, ID 838141891182911
- Brendan Mielke, MDCoeur D Alene, ID 838141265425532
- Emily Petersen, MDCoeur D Alene, ID 838141750414447
- James Crouch, MDBoise, ID 837061720303753
- Nicholas Hunt, MDBoise, ID 837061780621771
Common questions
What is Sherwin S. Foster, M.D.'s NPI number?
Sherwin S. Foster, M.D.'s National Provider Identifier (NPI) is 1720074990, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Sherwin S. Foster, M.D. located?
The NPPES record lists a practice address at 1986 W Hayden Ave, Hayden, ID, 83835. Phone: (208) 762-7760. Providers update this record themselves, so call before visiting.
How can I verify Sherwin S. Foster, M.D.'s license?
NPPES lists Idaho license number M-10094, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sherwin S. Foster, M.D. prescribe under Medicare Part D?
In 2024, Sherwin S. Foster, M.D. had 94 Medicare Part D claims for 34 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Sherwin S. Foster, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.