What is Fred Drennan's NPI number?

Fred Drennan's National Provider Identifier (NPI) is 1811916489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Fred Drennan's specialty?

Fred Drennan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is Fred Drennan located?

Fred Drennan's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101-2756.

What is Fred Drennan's phone number?

The practice phone number listed in the NPPES registry for Fred Drennan is (206) 223-6600.

Is Fred Drennan's NPI active?

Yes — Fred Drennan's NPI (1811916489) is active in the NPPES registry as of the last update on 2012-12-03.

IndividualActive

Fred Drennan, MD

NPI 1811916489 · Gastroenterology Physician · Seattle, WA

Fred Drennan, MD is a Gastroenterology Physician provider in Seattle, WA (NPI 1811916489).

Provider details

NPI number: 1811916489
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: MD00022840 (WA)

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense MD00022840 (WA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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.

Practice location

1100 9th Ave

Seattle, WA 98101-2756

Phone: (206) 223-6600

Street-level locationGet directions

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Mailing address