Nicholas Sterling Mandelis, DO
Emergency Medicine Physician · Wenatchee, WA
Nicholas Sterling Mandelis, DO is an emergency medicine physician with a practice address in Wenatchee, Washington, and NPI 1811450026, issued on Apr 13, 2019. Check the license (Washington OP61246725, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nicholas Sterling Mandelis
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OP61246725 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1201 S Miller St, Wenatchee, WA 98801
- Phone
- (509) 663-8711
- Enumerated
- Apr 13, 2019
- Record last updated
- Mar 29, 2022
- Medicare enrollment
- Enrolled (PECOS I20220405002616); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,459 in Washington → Look up another NPI →
Also registered at 1201 S Miller St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Glenn Adams, PHARM.DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1659700037
- Amith Ahluwalia, MDHematology & Oncology Physician1497231773
- Kathleen Allen, PA-CMedical Physician Assistant1134227234
- Richard Allen, PA-CPhysician Assistant1508856410
Verify Nicholas Sterling Mandelis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61246725Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average emergency medicine physician in 2024
364 Medicare Part D claims for 254 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Cephalexin33 claims
- Amoxicillin-Clavulanate Potass30 claims
- Oxycodone Hcl30 claims
- Prednisone28 claims
- Ondansetron Odt24 claims
- Ibuprofen22 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
- Central Washington Health Services AssociationWenatchee, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Sterling Mandelis among 1,459 emergency medicine physician records in Washington
Nicholas Sterling Mandelis, DO is one of 1,459 emergency medicine physician records with a practice address in Washington. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 88% of them.
- NPI issued2019 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2019 · median 2010 among the 851 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 emergency medicine physician records list a practice address in Wenatchee
They are 36 of the 2,290 NPPES records with a practice address in Wenatchee, and 1,459 emergency medicine physician records in Washington.
All 1,459 in Washington → Every provider in Wenatchee → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Faith Cowgill, MDWenatchee, WA 988011871583146
- John Crane, MDWenatchee, WA 988011891776464
- Thomas Ettinger, MDWenatchee, WA 988011639150345
- William Gotthold, MDWenatchee, WA 988011376574236
- Christopher Hughes, MDWenatchee, WA 988011366485153
- Lance Jobe, MDWenatchee, WA 988011487638730
- Michael Parnell, MDWenatchee, WA 988011790766400
- Timothy Riesenberger, M.D.Wenatchee, WA 988011689616302
Common questions
What is Nicholas Sterling Mandelis, DO's NPI number?
Nicholas Sterling Mandelis, DO's National Provider Identifier (NPI) is 1811450026, issued on Apr 13, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Sterling Mandelis, DO located?
The NPPES record lists a practice address at 1201 S Miller St, Wenatchee, WA, 98801. Phone: (509) 663-8711. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Sterling Mandelis, DO's license?
NPPES lists Washington license number OP61246725, 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 Nicholas Sterling Mandelis, DO prescribe under Medicare Part D?
In 2024, Nicholas Sterling Mandelis, DO had 364 Medicare Part D claims for 254 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.