STEPHEN WILLIAM CARSTENSEN DDS
NPI 1023160363
Dentist - General Practice in Seattle, WA

Q: What is Stephen Carstensen's NPI number?

The NPI number for Stephen Carstensen is 1023160363. It was assigned to this individual provider in the NPPES registry on January 17, 2007.

Q: What is Stephen Carstensen's specialty?

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

Active since January 17, 2007PECOS Enrolled

622 S WASHINGTON ST, SEATTLE, WA 98104(425) 552-3999(425) 552-3999 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jan 6, 2026, Dec 7, 2021, Jan 25, 2016 and 1 more (4 updates tracked since 2015).

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About Stephen William Carstensen Dds NPPES

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

STEPHEN WILLIAM CARSTENSEN DDS (NPI 1023160363) is an individual general practice provider in Seattle, Washington, licensed in Washington (DE00006409) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Baylor College Of Dentistry/texas A&m University (1983).

NPPES Registry Identity

NPI1023160363

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameSTEPHEN WILLIAM CARSTENSENCredential: DDS

Location Address622 S WASHINGTON STSeattle, WA 98104-2720

Mailing Address2908 181st Ave NeRedmond, WA 98052-5936 · (425) 552-3999 · Fax (425) 552-3999

Phone(425) 552-3999

Fax(425) 552-3999

Sole ProprietorYes

Medical School CMSBaylor College Of Dentistry/texas A&m UniversityGraduated 1983

Enumeration DateJanuary 17, 2007

Last NPPES UpdateJanuary 6, 20264 updates tracked since enumeration

NPPES CertifiedJanuary 6, 2026

✔ NPI 1023160363 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in WA · DE00006409

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.

Also ListedDentistTaxonomy 122300000X · License DE00006409 (WA)

622 S WASHINGTON ST, Seattle, WA 98104

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Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen William Carstensen Dds is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7618150772

PECOS Enrollment IDI20110328000094

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Colorectal Cancer Screening

0%397 patients1/55-star benchmark: 88%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

24%455 patients1/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

29%471 patients2/55-star benchmark: 61%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oral device/appliance used to reduce upper airway collapsibility, adjustable or non-adjustable, custom fabricated, includes fitting and adjustment E0486

DME-Other DME · category DE000N

1 supplier13 claims13 services$1,188.51 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Stephen Carstensen's NPI number?

The NPI number for Stephen Carstensen is 1023160363. It was assigned to this individual provider in the NPPES registry on January 17, 2007.

Where is Stephen Carstensen located?

Stephen Carstensen practices at 622 S Washington St, Seattle, WA 98104. The listed phone number is (425) 552-3999.

What is Stephen Carstensen's specialty?

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

Is Stephen Carstensen enrolled in Medicare?

Yes. Stephen Carstensen is registered in the Medicare PECOS enrollment system.

What insurance does Stephen Carstensen accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Stephen Carstensen 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 Stephen Carstensen was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.