Timothy J. O'Brien, MD
Specialist · Ellensburg, WA
Timothy J. O'Brien, MD is a specialist with a practice address in Ellensburg, Washington, and NPI 1770506453, issued on Jul 25, 2006. Check the license (Washington MD00021680, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy J. O'Brien
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- MD00021680 WA
Self-reported in NPPES; status is on the state search - Practice location
- 700 E Manitoba Ave, Ellensburg, WA 98926
- Phone
- (509) 925-6947
- Enumerated
- Jul 25, 2006
- Record last updated
- May 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 7010614 WA
- Entity
- Type 1 · individual
8 nearest specialist records → All 2,609 in Washington → Look up another NPI →
Also registered at 700 E Manitoba Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Larry Birger, MDInternal Medicine Physician1306830823
- Anna Collins, ARNPNurse Practitioner1497060339
- Jamin Feng, MDInternal Medicine Physician1942250709
- Daniel Hiersche, M.D.Specialist1043297187
- Roberta Hoppe, MDClinical Cardiac Electrophysiology Physician1104874270
- David Jackson, M.D.Internal Medicine Physician1992780159
Verify Timothy J. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license MD00021680Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 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).
Timothy J. O'Brien among 2,609 specialist records in Washington
Timothy J. O'Brien, MD is one of 2,609 specialist records with a practice address in Washington. 4% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 83% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2010 · 92% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 specialist records list a practice address in Ellensburg
They are 19 of the 676 NPPES records with a practice address in Ellensburg, and 2,609 specialist records in Washington.
All 2,609 in Washington → Every provider in Ellensburg → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Ruth Bare, LMPEllensburg, WA 989261225164429
- Mary Call, LMPEllensburg, WA 989261164640256
- Marilynn Carr, M.D.Ellensburg, WA 989261831168038
- James Heppler, M.D.Ellensburg, WA 989261417979568
- Bruce Herman, M.D.Ellensburg, WA 989261902865900
- Daniel Hiersche, M.D.Ellensburg, WA 989261043297187
- Mark Larson, M.D.Ellensburg, WA 989261194784090
- John Merrill-Steskal, M.D.Ellensburg, WA 989261700845609
Common questions
What is Timothy J. O'Brien, MD's NPI number?
Timothy J. O'Brien, MD's National Provider Identifier (NPI) is 1770506453, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy J. O'Brien, MD located?
The NPPES record lists a practice address at 700 E Manitoba Ave, Ellensburg, WA, 98926. Phone: (509) 925-6947. Providers update this record themselves, so call before visiting.
How can I verify Timothy J. O'Brien, MD's license?
NPPES lists Washington license number MD00021680, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
What is Timothy J. O'Brien, MD's MIPS final score?
The 2023 MIPS final score is 77.5 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.