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

Q: 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.

Q: What is Timothy Larson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Timothy Larson was last updated on April 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

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: October 25, 2026.

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

On this page

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

Phone(253) 572-7320

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

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Secondary Practice Location 1

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

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

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.

Medicare Billing Reassignments

Medicare enrollment records show Timothy Larson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multicare Health System

0.3 mi

Nurse Practitioner

3315 S 23RD ST, STE 200
Tacoma, WA 98405

Reassigned Medicare billing, Washington enrollment
4,383 clinicians in this Medicare group

NPI 1407808413 (253) 459-7000

Providence Health & Services Washington

22 mi

Clinic/Center

420 GOLF CLUB RD SE, SUITE 203
Lacey, WA 98503

Reassigned Medicare billing, Washington enrollment
184 clinicians in this Medicare group

NPI 1063611408 (360) 493-7469

Providence Health & Services Washington

22 mi

Family Medicine

525 LILLY RD NE
Olympia, WA 98506

Reassigned Medicare billing, Washington enrollment
646 clinicians in this Medicare group

NPI 1174744304 (360) 793-7230

Providence Health & Services Washington

44 mi

General Acute Care Hospital

914 S SCHEUBER RD
Centralia, WA 98531

Reassigned Medicare billing, Washington enrollment
85 clinicians in this Medicare group

NPI 1275732661 (360) 736-2803

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

98 services96 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

89 services83 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

80 services79 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

64 services63 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

50 services45 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

47 services46 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

44 services33 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

37 services37 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

36 services36 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

36 services35 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

26 services26 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

24 services22 patients

Ultrasound of heart with probe in esophagus during surgery on heart or great blood vessels with report 93355

This procedure, known as a transesophageal echocardiogram, involves placing a probe in your esophagus to capture detailed images of your heart during surgery. It helps surgeons monitor heart function and guide treatment. A report will follow.

20 services20 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

19 services19 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

17 services17 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

16 services16 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

12 services11 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

11 services11 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

11 services11 patients

Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist 93460

This procedure involves placing a tube into the heart chambers and coronary artery. It helps diagnose heart conditions. A radiologist reviews the images obtained. It's a standard, safe procedure performed by experienced medical professionals.

11 services11 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.

DR. HARTAJ SINGH GIRN M.D.

Internal Medicine (Cardiovascular Disease)