What is Gregory Armstrong's NPI number?

Gregory Armstrong's National Provider Identifier (NPI) is 1780392548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gregory Armstrong's specialty?

Gregory Armstrong is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).

Where is Gregory Armstrong located?

Gregory Armstrong's practice location on file with NPPES is 9925 International Blvd, Oakland, CA 94603-2558.

What is Gregory Armstrong's phone number?

The practice phone number listed in the NPPES registry for Gregory Armstrong is (510) 777-1177.

Is Gregory Armstrong's NPI active?

Yes — Gregory Armstrong's NPI (1780392548) is active in the NPPES registry as of the last update on 2022-11-10.

IndividualActive

Gregory Armstrong

NPI 1780392548 · Case Manager/Care Coordinator · Oakland, CA

Gregory Armstrong is a Case Manager/Care Coordinator provider in Oakland, CA (NPI 1780392548).

Provider details

NPI number: 1780392548
Entity type: Individual
Primary specialty: Case Manager/Care CoordinatorOther Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Case Manager/Care CoordinatorPrimary171M00000X
Other Service Providers

Profile Score

Established profile(53/100 index)

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

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
83% 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

9925 International Blvd

Oakland, CA 94603-2558

Phone: (510) 777-1177

Fax: (510) 550-2644

Street-level locationGet directions

More CA providers

Mailing address