Warren Ostwalt
Pharmacist · Billings, MT
Warren Ostwalt is a pharmacist with a practice address in Billings, Montana, and NPI 1114326733, issued on Aug 19, 2014. Check the license (Montana 2685, as entered in NPPES) with the Montana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Warren Ostwalt
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 2685 MT
Self-reported in NPPES; status is on the state search - Practice location
- 511 Central Ave, Billings, MT 59102
- Phone
- (406) 245-4301
- Enumerated
- Aug 19, 2014
- Record last updated
- Aug 19, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 1,087 in Montana → Look up another NPI →
Also registered at 511 Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jace Davidson, PHARMDPharmacist1003641580
- Kathryn Egan, PHARMDPharmacist1952880882
- Derek OhsPharmacist1528583721
- Thomas SchwinPharmacist1750742862
Verify Warren Ostwalt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 2685Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Warren Ostwalt among 1,087 pharmacist records in Montana
Warren Ostwalt is one of 1,087 pharmacist records with a practice address in Montana. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 43% of them.
- NPI issued2014 · 43% of these records are older, 51% newer
- In a Medicare fileNo · 19% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2014 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
167 pharmacist records list a practice address in Billings
They are 167 of the 4,035 NPPES records with a practice address in Billings, and 1,087 pharmacist records in Montana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,087 in Montana → Every provider in Billings → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Margo Allen, RPHBillings, MT 591021619264215
- Beth Brown, RPHBillings, MT 591021689698953
- Patrick Cirillo, RPHBillings, MT 591021760634125
- Lesli Goebel, RPH, PHARMDBillings, MT 591021992927560
- Sheila Jorgenson, RPHBillings, MT 591021699885509
- Sylvia McCalla, RPHBillings, MT 591021497960595
- Tracy McDonald, R.PH.Billings, MT 591021346442951
- Miranda McLaughlin, PHARMDBillings, MT 591021093945750
Common questions
What is Warren Ostwalt's NPI number?
Warren Ostwalt's National Provider Identifier (NPI) is 1114326733, issued on Aug 19, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Warren Ostwalt located?
The NPPES record lists a practice address at 511 Central Ave, Billings, MT, 59102. Phone: (406) 245-4301. Providers update this record themselves, so call before visiting.
How can I verify Warren Ostwalt's license?
NPPES lists Montana license number 2685, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity 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. 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.