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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM CRIS SIMMONS DDS
NPI 1467452631
Dentist - General Practice in Seattle, WA

Active since July 28, 2005Opted out of Medicare · through Jun 22, 2028
509 OLIVE WAY, SUITE 1451, SEATTLE, WA 98101(206) 682-3399(206) 682-0775 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Dr. William Cris Simmons Dds NPPES

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

DR. WILLIAM CRIS SIMMONS DDS (NPI 1467452631) is an individual general practice provider in Seattle, Washington, licensed in Washington (DE00006392) and active in the NPI registry since July 2005. He has opted out of Medicare through June 22, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1467452631
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. WILLIAM CRIS SIMMONSCredential: DDS
Location Address509 OLIVE WAY, SUITE 1451Seattle, WA 98101-1720
Mailing Address509 Olive Way, Suite 1451Seattle, WA 98101-1720 · (206) 682-3399 · Fax (206) 682-0775
Phone(206) 682-3399
Fax(206) 682-0775
Sole ProprietorNo
Enumeration DateJuly 28, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1467452631 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in WA · DE00006392
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
509 OLIVE WAY, Seattle, WA 98101
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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. William Cris Simmons Dds 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 June 22, 2014 through June 22, 2028.

Opt-Out Effective DateJune 22, 2014
Opt-Out In Effect ThroughJune 22, 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 98101 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.

DR. JOHN LEE STARKS DDS
Dentist
509 OLIVE WAY, STE 720
SEATTLE, WA 98101
King County (206) 623-7783
ROY D CLARK JR. MD
Psychiatry & Neurology (Psychiatry)
509 OLIVE WAY, #531
SEATTLE, WA 98101
King County (206) 682-5203
WALLY W KEGEL DDS MSD PS
Dentist (Periodontics)
509 OLIVE WAY, SUITE 627
SEATTLE, WA 98101
King County (206) 682-9269
MR. FRED L TROUSDALE MSW
Counselor (Mental Health)
509 OLIVE WAY, SUITE 1025
SEATTLE, WA 98101
King County (206) 282-1763
MR. JOHNNIE JOAQUIN LOPEZ LMP
Massage Therapist
509 OLIVE WAY, STE 620
SEATTLE, WA 98101
King County (206) 343-3325
ERIC LEE MARTIN LAC
Acupuncturist
509 OLIVE WAY, SUITE 1401
SEATTLE, WA 98101
King County (206) 402-3813
DR. DAVID W. BRANCH D.D.S.
Dentist (General Practice)
509 OLIVE WAY, SUITE 821
SEATTLE, WA 98101
King County (206) 624-5808
CAROLINE M HERRON, DDS, MSD, PLLC
Dentist (Periodontics)
509 OLIVE WAY, #627
SEATTLE, WA 98101
King County (206) 682-9269

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 William Simmons's NPI number?

The NPI number for William Simmons is 1467452631. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Where is William Simmons located?

William Simmons practices at 509 Olive Way Suite 1451, Seattle, WA 98101. The listed phone number is (206) 682-3399.

What is William Simmons's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is William Simmons enrolled in Medicare?

No. William Simmons has opted out of Medicare through June 22, 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.

When was this NPI record last updated?

The NPPES record for William Simmons was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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.