MR. DAN W REIFF PH.D.
NPI 1184779845
Nutritionist in Mercer Island, WA

Q: What is Dan Reiff's NPI number?

The NPI number for Dan Reiff is 1184779845. It was assigned to this individual provider in the NPPES registry on January 24, 2007.

Q: What is Dan Reiff's specialty?

The primary specialty registered for this NPI is Nutritionist with taxonomy code 133N00000X.

Q: When was this NPI record last updated?

The NPPES record for Dan Reiff was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since January 24, 2007

9725 SE 36TH ST, SUITE 301, MERCER ISLAND, WA 98040(206) 232-8404 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mr. Dan W Reiff Ph.d. NPPES

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

MR. DAN W REIFF PH.D. (NPI 1184779845) is an individual nutritionist in Mercer Island, Washington, licensed in Washington (NU00000947) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1184779845

Entity TypeIndividualMale

Primary Taxonomy133N00000X

Provider Legal NameMR. DAN W REIFFCredential: PH.D.

Location Address9725 SE 36TH ST, SUITE 301Mercer Island, WA 98040-3841

Mailing Address9725 Se 36th St, Suite 301Mercer Island, WA 98040-3841 · (206) 232-8404

Phone(206) 232-8404

Sole ProprietorYes

Enumeration DateJanuary 24, 2007

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1184779845 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNutritionistDietary & Nutritional Service Providers

Taxonomy Code133N00000X

License✔ Licensed in WA · NU00000947

Definition

A specialist in adapting and applying food and nutrient knowledge to the solution of food and nutritional problems, the control of disease, and the promotion of health. Nutritionists perform research, instruct groups and individuals about nutritional requirements, and assist people in developing meal patterns that meet their nutritional needs; (2) A nutritionist is someone who has completed undergraduate and/or graduate training in the discipline of nutrition without necessarily meeting the academic and experience requirements to qualify for the Registered Dietitian designation.

Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License LH00009322 (WA)

9725 SE 36TH ST, Mercer Island, WA 98040

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

Other Providers at the Same Location NPPES 9

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

ROBIN H FONTANA ARNP

Registered Nurse (Gerontology)

9725 SE 36TH ST, SUITE 214
MERCER ISLAND, WA 98040

King County (206) 275-3588

SONJA BRADFORD MS, CCC-SLP

Speech-Language Pathologist

9725 SE 36TH ST
MERCER ISLAND, WA 98040

King County (206) 232-2046

DR. MARY ANNE EARLS PH.D.

Psychologist

9725 SE 36TH ST, SUITE 212
MERCER ISLAND, WA 98040

King County (206) 236-5678

DR. KATHLEEN KIM LAMPSON REIFF PH.D.

Psychologist

9725 SE 36TH ST, SUITE 301
MERCER ISLAND, WA 98040

King County (206) 232-8404

SAMANTHA ZEISLOFT PMHNP-BC

Nurse Practitioner (Psychiatric/Mental Health)

9725 SE 36TH ST
MERCER ISLAND, WA 98040

King County (678) 674-4004

LESA BLACK M.S. CCC-SLP

Speech-Language Pathologist

9725 SE 36TH ST, SUITE 205
MERCER ISLAND, WA 98040

King County (206) 232-2046

DR. THUCUC THI-THU NGUYEN M.D.

Psychiatry & Neurology (Psychiatry)

9725 SE 36TH ST, SUITE
MERCER ISLAND, WA 98040

King County (206) 236-5553

DR. MARY PATRICIA BROWNING ND

Naturopath

9725 SE 36TH ST, SUITE 212
MERCER ISLAND, WA 98040

King County (206) 486-4292

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 Dan Reiff's NPI number?

The NPI number for Dan Reiff is 1184779845. It was assigned to this individual provider in the NPPES registry on January 24, 2007.

Where is Dan Reiff located?

Dan Reiff practices at 9725 SE 36th St Suite 301, Mercer Island, WA 98040. The listed phone number is (206) 232-8404.

What is Dan Reiff's specialty?

The primary specialty registered for this NPI is Nutritionist with taxonomy code 133N00000X.

What insurance does Dan Reiff accept?

Health plans from PacificSource Health Plans list Dan Reiff 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 Dan Reiff was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.