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MR. WALTER B HOLLOW MD
NPI 1316914716
Family Medicine in Seattle, WA

Active since March 03, 2006PECOS Enrolled
9800 4TH AVENUE NE, SEATTLE, WA 98115(206) 302-1248(206) 302-1263 Get Directions Write a Review

NPPES record last updated: October 5, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mr. Walter B Hollow Md NPPES

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

MR. WALTER B HOLLOW MD (NPI 1316914716) is an individual family medicine provider in Seattle, Washington, licensed in Washington (MD00015655) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316914716
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameMR. WALTER B HOLLOWCredential: MD
Location Address9800 4TH AVENUE NESeattle, WA 98115
Mailing Address9800 4th Avenue NeSeattle, WA 98115 · (206) 302-1248 · Fax (206) 302-1263
Phone(206) 302-1248
Fax(206) 302-1263
Sole ProprietorNo
Enumeration DateMarch 3, 2006
Last NPPES UpdateOctober 5, 2007
✔ NPI 1316914716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in WA · MD00015655
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedPsychologistTaxonomy 103T00000X · License MD00015655 (WA)
9800 4TH AVENUE NE, Seattle, WA 98115
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Other Names 1

Professional Name (2)Dr. Walt Hollow

Other Identifiers 3

Medicare PIN8802887
Medicare UPINE99333
Medicaid8446809WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Walter B Hollow 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 Walter Hollow reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Puyallup Tribal Health Authority
32 mi
Primary Care
2209 E 32ND ST
Tacoma, WA 98404
  • Reassigned Medicare billing, Washington enrollment
  • 55 clinicians in this Medicare group
NPI 1063455665 (253) 593-0232

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 98115 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
$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.

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 Walter Hollow's NPI number?

The NPI number for Walter Hollow is 1316914716. It was assigned to this individual provider in the NPPES registry on March 3, 2006. The provider is also known as Dr. Walt Hollow.

Where is Walter Hollow located?

Walter Hollow practices at 9800 4th Avenue NE, Seattle, WA 98115. The listed phone number is (206) 302-1248.

What is Walter Hollow's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Walter Hollow enrolled in Medicare?

Yes. Walter Hollow is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Walter Hollow's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Walter Hollow reassigns Medicare benefits to Puyallup Tribal Health Authority (Tacoma, 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 Walter Hollow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Walter Hollow was last updated on October 5, 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.