DR. ROSS MCMAHON M.D.
NPI 1679622690
Surgery in Seattle, WA

Q: What is Ross Mcmahon's NPI number?

The NPI number for Ross Mcmahon is 1679622690. It was assigned to this individual provider in the NPPES registry on January 9, 2007.

Q: What is Ross Mcmahon's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: Is Ross Mcmahon enrolled in Medicare?

No. Ross Mcmahon has opted out of Medicare through May 5, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Ross Mcmahon was last updated on November 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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 January 09, 2007Opted out of Medicare · through May 5, 2028

801 BROADWAY, SUITE 800, SEATTLE, WA 98122(206) 215-2090(206) 215-3099 Get Directions Write a Review

NPPES record last updated: November 18, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Ross Mcmahon M.d. NPPES

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

DR. ROSS MCMAHON M.D. (NPI 1679622690) is an individual surgery provider in Seattle, Washington, licensed in North Carolina (2000-00543) and active in the NPI registry since January 2007. He has opted out of Medicare through May 5, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1679622690

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. ROSS MCMAHONCredential: M.D.

Location Address801 BROADWAY, SUITE 800Seattle, WA 98122-4396

Mailing Address801 Broadway, Suite 800Seattle, WA 98122-4396 · (206) 215-2090 · Fax (206) 215-3099

Phone(206) 215-2090

Fax(206) 215-3099

Sole ProprietorNo

Enumeration DateJanuary 9, 2007

Last NPPES UpdateNovember 18, 2011

✔ NPI 1679622690 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in NC · 2000-00543

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

801 BROADWAY, Seattle, WA 98122

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Other Identifiers 3

Medicare ID-Type Unspecified2299716ANC

Medicare ID-Type UnspecifiedH57184

Medicare ID-Type Unspecified891311PNC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Ross Mcmahon M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 5, 2016 through May 5, 2028.

Opt-Out Effective DateMay 5, 2016

Opt-Out In Effect ThroughMay 5, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98122 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

$97.43 typical visit price

range $63.67 – $189.37

Typical copayment $24.35 (range $15.91 – $47.34)

Most-billed visit code 99203

Established Patient

$78.74 typical visit price

range $21.12 – $155.00

Typical copayment $19.68 (range $5.28 – $38.75)

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.

MRS. DAYNA E MORGAN ARNP

Nurse Practitioner (Family)

801 BROADWAY, SUITE 300
SEATTLE, WA 98122

King County (206) 215-3500

RICHARD J LINDQUIST MD

Family Medicine (Obesity Medicine)

801 BROADWAY, STE 800
SEATTLE, WA 98122

King County (206) 215-2090

PAUL P HUANG M.D.

Internal Medicine (Cardiovascular Disease)

801 BROADWAY, SUITE 824
SEATTLE, WA 98122

King County (206) 292-7990

DR. JASON KWANG-GU LEE MD

Surgery (Vascular Surgery)

801 BROADWAY, SUITE 500
SEATTLE, WA 98122

King County (206) 682-6087

ROMAN WONG M.D.

Specialist

801 BROADWAY, SUITE 522
SEATTLE, WA 98122

King County (206) 682-6087

SWEDISH HEALTH SERVICES

Internal Medicine

801 BROADWAY, STE 701
SEATTLE, WA 98122

King County (206) 386-2020

SONNI ERIKA SIMERLY PA-C

Physician Assistant (Surgical)

801 BROADWAY, SUITE 617
SEATTLE, WA 98122

King County (206) 623-0922

SWEDISH HEALTH SERVICES

Psychiatry & Neurology (Psychiatry)

801 BROADWAY, STE 925
SEATTLE, WA 98122

King County (206) 215-3650

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 Ross Mcmahon's NPI number?

The NPI number for Ross Mcmahon is 1679622690. It was assigned to this individual provider in the NPPES registry on January 9, 2007.

Where is Ross Mcmahon located?

Ross Mcmahon practices at 801 Broadway Suite 800, Seattle, WA 98122. The listed phone number is (206) 215-2090.

What is Ross Mcmahon's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Ross Mcmahon enrolled in Medicare?

No. Ross Mcmahon has opted out of Medicare through May 5, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Ross Mcmahon accept?

Health plans from Providence Health Plan list Ross Mcmahon 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.

When was this NPI record last updated?

The NPPES record for Ross Mcmahon was last updated on November 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.