NPPES file of Aug 9, 2026

Ronald A. Stiller, MD

Pulmonary Disease Physician · Walla Walla, WA

Ronald A. Stiller, MD is a pulmonary disease physician with a practice address in Walla Walla, Washington, and NPI 1154396109, issued on Feb 22, 2006. Check the license (Washington MD60720548, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154396109
Name
Ronald A. Stiller
Credential
MD
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License numbers
MD60720548 WA
MD029256E PA
Self-reported in NPPES; status is on the state search
Practice location
401 W Poplar St, Walla Walla, WA 99362
Phone
(095) 897-3320
Enumerated
Feb 22, 2006
Record last updated
May 31, 2024
Medicaid ID
001118560 PA
Medicare enrollment
Enrolled (PECOS I20170228001444); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1982
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 401 W Poplar St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammed Omar Ahmed, M.DInternal Medicine Physician1659756443
  2. Jose AlanisEmergency Medicine Physician1720461502
  3. Christopher Aldrich, M.D.Anesthesiology Physician1891084562
  4. Tami Arias, RNDiabetes Educator Registered Nurse1760959514
  5. Caroline Arnold, MDEmergency Medicine Physician1811492739
  6. Alexandra Baker, DNPNurse Practitioner1306473202

Verify Ronald A. Stiller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60720548
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

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75% fewer Medicare Part D claims than the average pulmonary disease physician in 2024

355 Medicare Part D claims for 87 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Ronald Stiller355
  2. Specialty average1,425

Most prescribed

  1. Metoprolol Succinate37 claims
  2. Atorvastatin Calcium31 claims
  3. Cefdinir17 claims
  4. Lisinopril17 claims
  5. Potassium Chloride16 claims
  6. Gabapentin15 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: $270.68

2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ronald Stiller$270.68
  2. Specialty average$5,159.88

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

  1. 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).

Ronald A. Stiller among 324 pulmonary disease physician records in Washington

Ronald A. Stiller, 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
  • Graduated1982 · median 2003 among the 229 with a school on file
  • Record last updated2024 · 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.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Michael Bernstein, MDWalla Walla, WA 993621578577987
  2. Timothy Davidson, MDWalla Walla, WA 993621124032511
  3. Kim Sahib, MDWalla Walla, WA 993621366882326
  4. Katherine Cayetano, MDRichland, WA 993521376741603
  5. Vincent George Cunanan, M.D.Richland, WA 993521538368360
  6. Naveen Rawat, MDRichland, WA 993521801137716
  7. Evan Schmitz, M.D.Richland, WA 993521649471947
  8. Carissa Burke, DOKennewick, WA 993361881222909

Common questions

What is Ronald A. Stiller, MD's NPI number?

Ronald A. Stiller, MD's National Provider Identifier (NPI) is 1154396109, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald A. Stiller, MD located?

The NPPES record lists a practice address at 401 W Poplar St, Walla Walla, WA, 99362. Phone: (095) 897-3320. Providers update this record themselves, so call before visiting.

How can I verify Ronald A. Stiller, MD's license?

NPPES lists Washington license number MD60720548, 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 Ronald A. Stiller, MD prescribe under Medicare Part D?

In 2024, Ronald A. Stiller, MD had 355 Medicare Part D claims for 87 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.