Reuben James Grothaus, D.O.
Family Medicine Physician · Richland, WA
Reuben James Grothaus, D.O. is a family medicine physician with a practice address in Richland, Washington, and NPI 1992065460, issued on May 18, 2012. Check the license (Washington OP60536083, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Reuben James Grothaus
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- OP60536083 WA
71686 GA
Self-reported in NPPES; status is on the state search - Practice location
- 3950 Keene RD, Richland, WA 99353
- Phone
- (509) 942-3130
- Enumerated
- May 18, 2012
- Record last updated
- May 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (509) 628-8335
- Medicare enrollment
- Enrolled (PECOS I20150701002501); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 3950 Keene RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristi Guzman, ARNPFamily Nurse Practitioner1184408189
Verify Reuben James Grothaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP60536083Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average family medicine physician in 2024
5,422 Medicare Part D claims for 524 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 228 claims were for opioids.
Most prescribed
- Atorvastatin Calcium389 claims
- Lisinopril189 claims
- Amlodipine Besylate179 claims
- Levothyroxine Sodium168 claims
- Gabapentin162 claims
- Losartan Potassium154 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 practice group's MIPS final score for 2023 (Medicare payment program): 83.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
3 hospitals and group practices
- Kadlec Regional Medical CenterWest Richland, WA · Acute Care Hospitals4 of 5 stars
- Select Outpatient Services IncGlenview, IL
- Select Rehabilitation, LLCGlenview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Reuben James Grothaus among 5,534 family medicine physician records in Washington
Reuben James Grothaus, D.O. 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 2012, is newer than 64% of them.
- NPI issued2012 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2012 · median 2009 among the 3,294 with a school on file
- Record last updated2021 · 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).
47 family medicine physician records list a practice address in Richland
They are 47 of the 1,955 NPPES records with a practice address in Richland, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Richland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jeffrey Kiki, D.O.West Richland, WA 993531003874017
- Trevor Lott, D.O.West Richland, WA 993531427741131
- Paul Matiaco, DOWest Richland, WA 993531285291047
- Ryan Ostler, DOWest Richland, WA 993531174198881
- Sabah Altayar, M.D.Richland, WA 993541114971686
- James Beck, M.D.Richland, WA 993541558308320
- Martin Coker, M.D.Richland, WA 993541225082811
- Sherilyn Cook, MDRichland, WA 993541851485189
Common questions
What is Reuben James Grothaus, D.O.'s NPI number?
Reuben James Grothaus, D.O.'s National Provider Identifier (NPI) is 1992065460, issued on May 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Reuben James Grothaus, D.O. located?
The NPPES record lists a practice address at 3950 Keene RD, Richland, WA, 99353. Phone: (509) 942-3130. Providers update this record themselves, so call before visiting.
How can I verify Reuben James Grothaus, D.O.'s license?
NPPES lists Washington license number OP60536083, 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 Reuben James Grothaus, D.O. prescribe under Medicare Part D?
In 2024, Reuben James Grothaus, D.O. had 5,422 Medicare Part D claims for 524 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Reuben James Grothaus, D.O.'s MIPS final score?
The 2023 MIPS final score is 83.1 of 100, reported for the practice group. 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.