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DR. STEPHAN DITTLE FIHN MD
NPI 1225098320
Internal Medicine in Seattle, WA

Active since March 24, 2006PECOS Enrolled
93.09/100
CMS Quality Rating
1100 MINOR AVE, SUITE 1400, SEATTLE, WA 98101(206) 764-2651(206) 764-2935 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Stephan Dittle Fihn Md NPPES

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

DR. STEPHAN DITTLE FIHN MD (NPI 1225098320) is an individual internal medicine provider in Seattle, Washington, licensed in Washington (MD00016664) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225098320
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. STEPHAN DITTLE FIHNCredential: MD
Location Address1100 MINOR AVE, SUITE 1400Seattle, WA 98101-4204
Mailing Address1100 Minor Ave, Suite 1400Seattle, WA 98101-4204 · (206) 764-2651 · Fax (206) 764-2935
Phone(206) 764-2651
Fax(206) 764-2935
Sole ProprietorNo
Enumeration DateMarch 24, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1225098320 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 · MD00016664
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.
1100 MINOR AVE, Seattle, WA 98101
Open in Google Maps ↗

Accepted Insurance

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

Dr. Stephan Dittle Fihn 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 Stephan Fihn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Association Of University Physicians
0.5 mi
Anesthesiology
701 5TH AVE, SUITE 700
Seattle, WA 98104
  • Reassigned Medicare billing, Washington enrollment
  • 4,364 clinicians in this Medicare group
NPI 1023041159 (206) 543-6420

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 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
$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.

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.

93.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality73.95
Promoting Interoperability100
Improvement Activities40

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 Stephan Fihn's NPI number?

The NPI number for Stephan Fihn is 1225098320. It was assigned to this individual provider in the NPPES registry on March 24, 2006.

Where is Stephan Fihn located?

Stephan Fihn practices at 1100 Minor Ave Suite 1400, Seattle, WA 98101. The listed phone number is (206) 764-2651.

What is Stephan Fihn's specialty?

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

Is Stephan Fihn enrolled in Medicare?

Yes. Stephan Fihn is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephan Fihn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephan Fihn reassigns Medicare benefits to The Association Of University Physicians (Seattle, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephan Fihn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephan Fihn accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Stephan Fihn 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 Stephan Fihn was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.