RONALD O WATSON MD
NPI 1821173162
Internal Medicine in Seattle, WA

Q: What is Ronald Watson's NPI number?

The NPI number for Ronald Watson is 1821173162. It was assigned to this individual provider in the NPPES registry on October 26, 2006.

Q: What is Ronald Watson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Watson was last updated on February 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 October 26, 2006PECOS Enrolled

3400 CALIFORNIA AVE SW, STE 300, SEATTLE, WA 98116(206) 320-3399(206) 320-5506 Get Directions Write a Review

NPPES record last updated: February 17, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Ronald O Watson Md NPPES

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

RONALD O WATSON MD (NPI 1821173162) is an individual internal medicine provider in Seattle, Washington, licensed in Washington (MD00021869) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821173162

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameRONALD O WATSONCredential: MD

Location Address3400 CALIFORNIA AVE SW, STE 300Seattle, WA 98116

Mailing AddressPo Box 84026Seattle, WA 98124-8426 · (206) 320-3399

Phone(206) 320-3399

Fax(206) 320-5506

Sole ProprietorNo

Enumeration DateOctober 26, 2006

Last NPPES UpdateFebruary 17, 2009

✔ NPI 1821173162 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in WA · MD00021869

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

3400 CALIFORNIA AVE SW, STE 300, Seattle, WA 98116

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Other Identifiers 2

Medicaid1030840WA

Medicare PINAB07922WA

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ronald O Watson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Ronald Watson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Polyclinic

3.9 mi

Radiation Oncology

1225 MADISON ST
Seattle, WA 98104

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

NPI 1962824219 (206) 386-3195

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98116 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

$143.76 typical visit price

range $63.67 – $189.37

Typical copayment $35.94 (range $15.91 – $47.34)

Most-billed visit code 99204

Established Patient

$111.00 typical visit price

range $21.12 – $155.00

Typical copayment $27.75 (range $5.28 – $38.75)

Most-billed visit code 99214

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 5

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

MARTHA LYNN HYDE MD

Internal Medicine