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Dr. Alexander Mayhew Olson , MD

Anesthesiology β€’ Seattle, WA

Active NPI 1033796651 Individual Practitioner Male Practitioner
Practice location in NPPES

1100 9th Ave
Seattle, WA 981012756

Call 2062236980 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1100 9th Ave

Seattle, WA 981012756

Telephone 2062236980
Fax 2062236982
Organization at the Same NPPES Address or Phone
Virginia Mason Medical Center Facility NPI 1376607234

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2021

30-day fills

15 standardized 30-day fills in 2022

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$34 in 2022

The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $49.51 in 2024

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2024.

Guide: How to read an Open Payments record

Years since graduation

5 years (graduated 2021)

CMS Doctors and Clinicians data list 2021 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2021

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

May accept Medicare assignment

CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Olson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Olson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Seattle and Washington

Billing and prescribing volume is not a quality rating.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Dr. Olson are from 2022.

694 active clinicians are listed under Anesthesiology with a practice address in Seattle, WA (1,701 in Washington).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Seattle

1.6% of these 694 clinicians have the CMS telehealth indicator.

69% of these 694 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2022), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2024

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $49.51.

Manufacturer Payment Nature Product Type Amount ($)
Avanos Medical
Food and Beverage
In-kind items and services
ON-Q* PUMP AND ACCESSORIES General $49.51

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2022.

CMS Part D Β· Data Year 2022
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Oxycodone Hcl Oxycodone Hcl 15 34 $34.08 15

Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-02-26
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES WA MD70019201

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Washington State Department of Health Provider Lookup.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY

Medicare Enrollment ID

I20260113002479

Enrollment State Jurisdiction

WA

PECOS Control ID

1759780752

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
Ava Alamdari , BMBS

Anesthesiology

NPI 1649513623
Jessica Alleman , CRNA

Nurse Anesthetist, Certified Registered

NPI 1255901484

Certified Registered Nurse Anesthetist

Julia Anderson , CRNA

Nurse Anesthetist, Certified Registered

NPI 1215376009

Certified Registered Nurse Anesthetist

Dr. Sarah Bain , MD

Anesthesiology

NPI 1467612390

Doctor of Medicine (M.D.)

NPI 1265790018

Doctor of Medicine (M.D.)

Dr. Mark Bomann , MD

Anesthesiology

NPI 1578592937

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Practice Location February 26, 2026

Registered at 1100 9TH AVE, SEATTLE, WA 981012756 (Tel: 2062236980)

πŸ“
Updated Business Mailing Address February 26, 2026

Registered at PO BOX 741515, LOS ANGELES, CA 900741515 (Tel: 2062236980)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) February 26, 2026

Anesthesiology (license number reported to NPPES: WA MD70019201)

βœ…
NPI Profile Active March 28, 2021

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) March 28, 2021

Registered at 925 SENECA ST, SEATTLE, WA 981012742 (Tel: 2065836079)

πŸ“
Business Mailing Address (Initial Record) March 28, 2021

Registered at 925 SENECA ST, H8-GME, SEATTLE, WA 981012742 (Tel: 2065836079)

πŸ‘€
Provider Name / Credentials (Initial Record) March 28, 2021

Recorded as ALEXANDER OLSON, MD

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 28, 2021

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration March 28, 2021

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1033796651
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 28, 2021
Last Update: February 26, 2026
Sole Proprietor: Yes

Other Anesthesiology Specialists in Seattle

All Anesthesiology Specialists in Seattle

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Mailing Address

Po Box 741515

Los Angeles, CA 900741515

Phone: 2062236980

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.