John H. Addison MD Ps
NPI 1497706774 · Geriatric Medicine (Internal Medicine) Physician · Mercer Island, WA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John H. Addison MD Ps is a Geriatric Medicine (Internal Medicine) Physician organization in Mercer Island, WA (NPI 1497706774).
Provider details
- NPI number
- 1497706774
- Entity type
- Organization
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Addison, Owner(206) 275-3588
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Other names (DBA / former)
- Doing business as
- Northwest Geriatrics
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2017-01-05
Frequently asked questions
- What is John H. Addison MD Ps's NPI number?
- John H. Addison MD Ps's National Provider Identifier (NPI) is 1497706774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John H. Addison MD Ps?
- John H. Addison MD Ps is classified in the NPPES registry as Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John H. Addison MD Ps located?
- John H. Addison MD Ps's practice location on file with NPPES is 9725 Se 36th St., Mercer Island, WA 98040.
- What is John H. Addison MD Ps's phone number?
- The practice phone number listed in the NPPES registry for John H. Addison MD Ps is (206) 275-3588.
- Does John H. Addison MD Ps accept Medicare?
- John H. Addison MD Ps is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for John H. Addison MD Ps?
- The authorized official listed on John H. Addison MD Ps's NPPES record is John Addison, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John H. Addison MD Ps's NPI active?
- Yes — John H. Addison MD Ps's NPI (1497706774) is active in the NPPES registry as of the last update on 2017-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.