DR. TIMOTHY STEPHEN LARSON M.D.
NPI 1679782676
Internal Medicine - Cardiovascular Disease in Tacoma, WA

Active since May 22, 2007PECOS EnrolledAccepts Medicare Assignment
1901 S CEDAR ST STE 301, TACOMA, WA 98405(253) 572-7320(253) 627-3191 Get Directions Write a Review

NPPES record last updated: April 7, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 7, 2025, Sep 24, 2021, Jun 9, 2017 (3 updates tracked since 2017).

About Dr. Timothy Stephen Larson M.d. NPPES

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

DR. TIMOTHY STEPHEN LARSON M.D. (NPI 1679782676) is an individual cardiovascular disease provider in Tacoma, Washington, licensed in Washington (MD60041949) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Multicare Auburn Medical Center, and maintains a secondary practice location in Olympia.

NPPES Registry Identity

NPI1679782676
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. TIMOTHY STEPHEN LARSONCredential: M.D.
Location Address1901 S CEDAR ST STE 301Tacoma, WA 98405-2302
Mailing AddressPo Box 5299, Ms: 820-5-pcoTacoma, WA 98415-0299 · (253) 459-8231
Fax(253) 627-3191
Sole ProprietorNo
Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2003
Enumeration DateMay 22, 2007
Last NPPES UpdateApril 7, 20253 updates tracked since enumeration
NPPES CertifiedApril 7, 2025
NPI 1679782676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in WA · MD60041949
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
1901 S CEDAR ST STE 301, Tacoma, WA 98405

Secondary Practice Location 1

Location 1500 Lilly Rd NE Ste 100Olympia, WA 98506-5195 · Phone (360) 413-8525 · Fax (360) 412-6477

Accepted 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

Dr. Timothy Stephen Larson M.d. 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 ID1658421581
PECOS Enrollment IDI20090615000329
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 26

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.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
915 services906 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
356 services324 patients
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.
179 services161 patients
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016
An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.
146 services145 patients
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018
An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.
146 services145 patients
Nuclear medicine studies of heart muscle at rest and with stress and spect 78452
Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.
132 services131 patients

Hospital Affiliations CMS Care Compare 5

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

Multicare Auburn Medical Center

Acute Care Hospitals · Auburn, WA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500015
Location202 North Division Street Plaza OneAuburn, WA 98001 · King County
Emergency services Birthing friendly

Multicare Good Samaritan Hospital

Acute Care Hospitals · Puyallup, WA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500079
Location401 15th Avenue SEPuyallup, WA 98372 · Pierce County
Emergency services Birthing friendly

Tacoma General Allenmore Hospital

Acute Care Hospitals · Tacoma, WA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500129
Location315 S Mlk Jr WayTacoma, WA 98405 · Pierce County
Emergency services Birthing friendly

Capital Medical Center

Acute Care Hospitals · Olympia, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500139
Location3900 Capital Mall Dr SWOlympia, WA 98502 · Thurston County
Emergency services Birthing friendly

Multicare Covington Medical Center

Acute Care Hospitals · Covington, WA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500154
Location17700 SE 272nd StCovington, WA 98042 · King County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98405 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
$130.99 typical visit price
range $57.27 – $172.80
Typical copayment $32.74 (range $14.31 – $43.20)
Most-billed visit code 99204
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.

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.

Internal Medicine (Cardiovascular Disease)
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Internal Medicine (Cardiovascular Disease)
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Internal Medicine (Cardiovascular Disease)
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Nurse Practitioner (Adult Health)
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Internal Medicine (Clinical Cardiac Electrophysiology)
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Nurse Practitioner (Adult Health)
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Nurse Practitioner
1901 S CEDAR ST STE 301
TACOMA, WA 98405
Nurse Practitioner (Adult Health)
1901 S CEDAR ST STE 301
TACOMA, WA 98405

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Timothy Larson's NPI number?

The NPI number for Timothy Larson is 1679782676. It was assigned to this individual provider in the NPPES registry on May 22, 2007.

Where is Timothy Larson located?

Timothy Larson practices at 1901 S Cedar St Ste 301, Tacoma, WA 98405. The listed phone number is (253) 572-7320.

What is Timothy Larson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Timothy Larson enrolled in Medicare?

Yes. Timothy Larson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Timothy Larson accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Timothy Larson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Timothy Larson affiliated with any hospitals?

According to CMS data, Timothy Larson is affiliated with Multicare Auburn Medical Center, Multicare Good Samaritan Hospital, Tacoma General Allenmore Hospital, Capital Medical Center and Multicare Covington Medical Center.

When was this NPI record last updated?

The NPPES record for Timothy Larson was last updated on April 7, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.