Nathan Tolley, DO
Psychiatry Physician · Mount Vernon, WA
Nathan Tolley, DO is a psychiatry physician with a practice address in Mount Vernon, Washington, and NPI 1235666389, issued on May 20, 2017. Check the license (Washington OP61220523, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nathan Tolley
- Credential
- DO
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- OP61220523 WA
0061698 CO
Self-reported in NPPES; status is on the state search - Practice location
- 901 S 5TH St, Mount Vernon, WA 98274
- Phone
- (360) 814-7300
- Enumerated
- May 20, 2017
- Record last updated
- Dec 10, 2025
- Fax
- (360) 848-4543
- Medicare enrollment
- Enrolled (PECOS I20220609002513); accepts Medicare assignment
- Medical or professional school
- Lake Erie Col Of Osteo Med At Seton Hill Univ, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 901 S 5TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shelly Damschroder, NPFamily Nurse Practitioner1164750923
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Verify Nathan Tolley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61220523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average psychiatry physician in 2024
1,252 Medicare Part D claims for 91 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims.
Most prescribed
- Quetiapine Fumarate108 claims
- Trazodone Hcl86 claims
- Fluoxetine Hcl84 claims
- Olanzapine76 claims
- Lamotrigine71 claims
- Diazepam55 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: $19.55
1 payment: food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Public Hospital Dist NO 1 SkagitMount Vernon, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Tolley among 1,195 psychiatry physician records in Washington
Nathan Tolley, DO is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 84% of them.
- NPI issued2017 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2017 · median 2007 among the 462 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Mount Vernon → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Vance Sherman, MDMount Vernon, WA 982741487883187
- Brian Waiblinger, MDMount Vernon, WA 982741750350443
- Mark Backlund, MDMount Vernon, WA 982731306883152
- Jeffrey Berger, MDMount Vernon, WA 982731588601355
- Susan Clark, MDMukilteo, WA 982751598892085
- Dennis Gaither, M.D.Mount Vernon, WA 982731730123084
- Rozina Lakhani, MDMount Vernon, WA 982731174682371
- Sara Petry, M.D.Mukilteo, WA 982751124125877
Common questions
What is Nathan Tolley, DO's NPI number?
Nathan Tolley, DO's National Provider Identifier (NPI) is 1235666389, issued on May 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Tolley, DO located?
The NPPES record lists a practice address at 901 S 5TH St, Mount Vernon, WA, 98274. Phone: (360) 814-7300. Providers update this record themselves, so call before visiting.
How can I verify Nathan Tolley, DO's license?
NPPES lists Washington license number OP61220523, 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 Nathan Tolley, DO prescribe under Medicare Part D?
In 2024, Nathan Tolley, DO had 1,252 Medicare Part D claims for 91 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.