What is Keith Loeb's NPI number?

Keith Loeb's National Provider Identifier (NPI) is 1801935788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Keith Loeb's specialty?

Keith Loeb is listed in the NPPES registry with a primary specialty of Hematology (Pathology) Physician (Allopathic & Osteopathic Physicians).

Where is Keith Loeb located?

Keith Loeb's practice location on file with NPPES is 825 Eastlake Ave E, Seattle, WA 98109-4405.

What is Keith Loeb's phone number?

The practice phone number listed in the NPPES registry for Keith Loeb is (206) 288-7222.

Does Keith Loeb accept Medicare?

Keith Loeb is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Keith Loeb's NPI active?

Yes — Keith Loeb's NPI (1801935788) is active in the NPPES registry as of the last update on 2011-05-31.

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Keith Loeb, MD, PHD

NPI 1801935788 · Hematology (Pathology) Physician · Seattle, WA

Keith Loeb, MD, PHD is a Hematology (Pathology) Physician provider in Seattle, WA (NPI 1801935788).

Provider details

NPI number: 1801935788
Entity type: Individual
Primary specialty: Hematology (Pathology) PhysicianAllopathic & Osteopathic Physicians
Credential: MD, PHD
Sex: Male
Sole proprietor: No
License: MD00037989 (WA)

Practice location

825 Eastlake Ave E

Seattle, WA 98109-4405

Phone: (206) 288-7222

Street-level locationGet directions

More WA providers

Mailing address

Po Box 50095

Seattle, WA 98145-5095

Specialties & taxonomies

Hematology (Pathology) PhysicianPrimary207ZH0000XLicense MD00037989 (WA)
Allopathic & Osteopathic Physicians
Anatomic Pathology & Clinical Pathology Physician207ZP0102XLicense MD00037989 (WA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(71/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
19 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
644 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305	171	$40
Blood Smear Interpretation By Physician With Written Report85060	83	$26
Bone Marrow, Smear Interpretation85097	78	$52
Preparation of Tissue for Examination By Removing Any Calcium Present88311	69	$13
Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313	58	$13
Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341	58	$30

Enumerated: 2007-02-06
Last updated: 2011-05-31

Frequently asked questions

What is Keith Loeb's NPI number?: Keith Loeb's National Provider Identifier (NPI) is 1801935788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Keith Loeb's specialty?: Keith Loeb is listed in the NPPES registry with a primary specialty of Hematology (Pathology) Physician (Allopathic & Osteopathic Physicians).
Where is Keith Loeb located?: Keith Loeb's practice location on file with NPPES is 825 Eastlake Ave E, Seattle, WA 98109-4405.
What is Keith Loeb's phone number?: The practice phone number listed in the NPPES registry for Keith Loeb is (206) 288-7222.
Does Keith Loeb accept Medicare?: Keith Loeb is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Keith Loeb's NPI active?: Yes — Keith Loeb's NPI (1801935788) is active in the NPPES registry as of the last update on 2011-05-31.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)