NATHAN TOLLEY DO
NPI 1235666389
Psychiatry & Neurology - Psychiatry in Mount Vernon, WA

Q: What is Nathan Tolley's NPI number?

The NPI number for Nathan Tolley is 1235666389. It was assigned to this individual provider in the NPPES registry on May 20, 2017.

Q: What is Nathan Tolley's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Tolley was last updated on December 10, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since May 20, 2017PECOS EnrolledAccepts Medicare Assignment

901 S 5TH ST, MOUNT VERNON, WA 98274(360) 814-7300(360) 848-4543 Get Directions Write a Review

NPPES record last updated: December 10, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 10, 2025, Jun 29, 2020, Feb 17, 2020 and 1 more (4 updates tracked since 2017).

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About Nathan Tolley Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATHAN TOLLEY DO (NPI 1235666389) is an individual psychiatry provider in Mount Vernon, Washington, licensed in Washington (OP61220523) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and is a graduate of Lake Erie Col Of Osteo Med At Seton Hill Univ (2017).

NPPES Registry Identity

NPI1235666389

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameNATHAN TOLLEYCredential: DO

Location Address901 S 5TH STMount Vernon, WA 98274-3942

Mailing Address901 S 5th StMount Vernon, WA 98274-3942 · (360) 814-7300 · Fax (360) 848-4543

Phone(360) 814-7300

Fax(360) 848-4543

Sole ProprietorNo

Medical School CMSLake Erie Col Of Osteo Med At Seton Hill UnivGraduated 2017

Enumeration DateMay 20, 2017

Last NPPES UpdateDecember 10, 20254 updates tracked since enumeration

NPPES CertifiedDecember 10, 2025

✔ NPI 1235666389 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Licenses✔ Licensed in WA · OP61220523✔ Licensed in CO · 0061698

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

901 S 5TH ST, Mount Vernon, WA 98274

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathan Tolley Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799163341

PECOS Enrollment IDI20220609002513

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

177 services52 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

49 services22 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

38 services38 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Skagit Valley Hospital

Acute Care Hospitals · Mount Vernon, WA

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500003

Location1415 E Kincaid StreetMount Vernon, WA 98274 · Skagit County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98274 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$172.80 typical visit price

range $57.27 – $172.80

Typical copayment $43.20 (range $14.31 – $43.20)

Most-billed visit code 99205

Established Patient

$71.29 typical visit price

range $18.56 – $141.11

Typical copayment $17.82 (range $4.64 – $35.27)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANDRA LEE GAILEY MD

Emergency Medicine