What is Nelson Ma's NPI number?

Nelson Ma's National Provider Identifier (NPI) is 1639826647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Nelson Ma's specialty?

Nelson Ma is listed in the NPPES registry with a primary specialty of Community Health Worker (Other Service Providers).

Where is Nelson Ma located?

Nelson Ma's practice location on file with NPPES is 368 Fell St, San Francisco, CA 94102-5144.

What is Nelson Ma's phone number?

The practice phone number listed in the NPPES registry for Nelson Ma is (415) 861-0828.

Is Nelson Ma's NPI active?

Yes — Nelson Ma's NPI (1639826647) is active in the NPPES registry as of the last update on 2022-03-09.

IndividualActive

Nelson Ma

NPI 1639826647 · Community Health Worker · San Francisco, CA

Nelson Ma is a Community Health Worker provider in San Francisco, CA (NPI 1639826647).

Provider details

NPI number: 1639826647
Entity type: Individual
Primary specialty: Community Health WorkerOther Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Community Health WorkerPrimary172V00000X
Other Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
4 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

368 Fell St

San Francisco, CA 94102-5144

Phone: (415) 861-0828

Street-level locationGet directions

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Mailing address