What is Mariana Tchen's NPI number?

Mariana Tchen's National Provider Identifier (NPI) is 1427946870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mariana Tchen's specialty?

Mariana Tchen is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Mariana Tchen located?

Mariana Tchen's practice location on file with NPPES is 89 Bartlett St, Brooklyn, NY 11206-4463.

What is Mariana Tchen's phone number?

The practice phone number listed in the NPPES registry for Mariana Tchen is (646) 299-1291.

Is Mariana Tchen's NPI active?

Yes — Mariana Tchen's NPI (1427946870) is active in the NPPES registry as of the last update on 2025-06-25.

IndividualActive

Mariana Tchen

NPI 1427946870 · Specialist · Brooklyn, NY

Mariana Tchen is a Specialist provider in Brooklyn, NY (NPI 1427946870).

Provider details

NPI number: 1427946870
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

SpecialistPrimary174400000X
Other Service Providers

Profile Score

Basic profile(48/100 index)

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

Registry tenure38% of score
1 yr 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

89 Bartlett St

Brooklyn, NY 11206-4463

Phone: (646) 299-1291

Street-level locationGet directions

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Mailing address