Mathias M. Stroemel, DO
Nephrology Physician · Walla Walla, WA
Mathias M. Stroemel, DO is a nephrology physician with a practice address in Walla Walla, Washington, and NPI 1265446660, issued on Jul 28, 2006. Check the license (Washington OP1416, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mathias M. Stroemel
- Credential
- DO
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- OP1416 WA
05-48772 KS
Self-reported in NPPES; status is on the state search - Practice location
- 301 W Poplar, Walla Walla, WA 99362
- Phone
- (509) 522-5824
- Enumerated
- Jul 28, 2006
- Record last updated
- Jan 9, 2024
- Fax
- (509) 522-5738
- Medicaid ID
- 8146383 WA
- Medicare enrollment
- Enrolled (PECOS I20240102003883); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1988
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 284 in Washington → Look up another NPI →
Also registered at 301 W Poplar
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Harri, MDGastroenterology Physician1215043609
- John Shannon, MDSurgery Physician1982610903
Verify Mathias M. Stroemel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP1416Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% more Medicare Part D claims than the average nephrology physician in 2024
1,603 Medicare Part D claims for 311 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Calcitriol102 claims
- Furosemide102 claims
- Lisinopril74 claims
- Amlodipine Besylate71 claims
- Nifedipine Er62 claims
- Jardiance60 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: $227.78
2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Bills Medicare through one group practice
- Commonspirit Kansas IncDodge City, KS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mathias M. Stroemel among 284 nephrology physician records in Washington
Mathias M. Stroemel, DO is one of 284 nephrology physician records with a practice address in Washington. 82% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 56% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1988 · median 2003 among the 213 with a school on file
- Record last updated2024 · 60% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Washington
There are 284 nephrology physician records in Washington.
All 284 in Washington → Every provider in Walla Walla → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Jennifer Leach, M.D.Walla Walla, WA 993621417165382
- Onder Orgul, MDWalla Walla, WA 993621932123601
- Elhami Hannan, MDRichland, WA 993521093803884
- Kelvin Hsu, MDRichland, WA 993521518162072
- Jennifer Tan, M.D.Richland, WA 993521912285172
- Fareed Arif, M.D.Kennewick, WA 993361073616611
- Wassim Khawandi, MDKennewick, WA 993361467420174
- Obioma Onuorah, M.D.Kennewick, WA 993361982706818
Common questions
What is Mathias M. Stroemel, DO's NPI number?
Mathias M. Stroemel, DO's National Provider Identifier (NPI) is 1265446660, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mathias M. Stroemel, DO located?
The NPPES record lists a practice address at 301 W Poplar, Walla Walla, WA, 99362. Phone: (509) 522-5824. Providers update this record themselves, so call before visiting.
How can I verify Mathias M. Stroemel, DO's license?
NPPES lists Washington license number OP1416, 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 Mathias M. Stroemel, DO prescribe under Medicare Part D?
In 2024, Mathias M. Stroemel, DO had 1,603 Medicare Part D claims for 311 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.