Timothy A. Davidson, MD
Pulmonary Disease Physician · Walla Walla, WA
Timothy A. Davidson, MD is a pulmonary disease physician with a practice address in Walla Walla, Washington, and NPI 1124032511, issued on Jul 28, 2006. Check the license (Washington MD00032527, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Timothy A. Davidson
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- MD00032527 WA
Self-reported in NPPES; status is on the state search - Practice location
- 401 W Poplar, Walla Walla, WA 99362
- Phone
- (509) 522-5940
- Enumerated
- Jul 28, 2006
- Record last updated
- May 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (509) 522-5744
- Medicaid IDs
- 210897 OR
1124032511 WA - Medicare enrollment
- Enrolled (PECOS I20070208000173); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 324 in Washington → Look up another NPI →
Also registered at 401 W Poplar
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Rubin, PHDPsychologist1952414211
- Richard Simon, MDSleep Medicine (Internal Medicine) Physician1942214333
- Shirley Vonhaven, DOEmergency Medicine Physician1225052996
Verify Timothy A. Davidson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00032527Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
1,338 Medicare Part D claims for 198 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Azithromycin145 claims
- Albuterol Sulfate Hfa136 claims
- Fluticasone-Salmeterol132 claims
- Trelegy Ellipta120 claims
- Prednisone74 claims
- Montelukast Sodium61 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.
Bills Medicare through one group practice
- Providence Health And Services - WashingtonWalla Walla, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy A. Davidson among 324 pulmonary disease physician records in Washington
Timothy A. Davidson, MD is one of 324 pulmonary disease physician records with a practice address in Washington. 80% 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, 54% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1992 · median 2003 among the 229 with a school on file
- Record last updated2021 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Washington
There are 324 pulmonary disease physician records in Washington.
All 324 in Washington → Every provider in Walla Walla → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Michael Bernstein, MDWalla Walla, WA 993621578577987
- Kim Sahib, MDWalla Walla, WA 993621366882326
- Ronald Stiller, MDWalla Walla, WA 993621154396109
- Katherine Cayetano, MDRichland, WA 993521376741603
- Vincent George Cunanan, M.D.Richland, WA 993521538368360
- Naveen Rawat, MDRichland, WA 993521801137716
- Evan Schmitz, M.D.Richland, WA 993521649471947
- Carissa Burke, DOKennewick, WA 993361881222909
Common questions
What is Timothy A. Davidson, MD's NPI number?
Timothy A. Davidson, MD's National Provider Identifier (NPI) is 1124032511, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy A. Davidson, MD located?
The NPPES record lists a practice address at 401 W Poplar, Walla Walla, WA, 99362. Phone: (509) 522-5940. Providers update this record themselves, so call before visiting.
How can I verify Timothy A. Davidson, MD's license?
NPPES lists Washington license number MD00032527, 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 Timothy A. Davidson, MD prescribe under Medicare Part D?
In 2024, Timothy A. Davidson, MD had 1,338 Medicare Part D claims for 198 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.