What is James Marcus's NPI number?

James Marcus's National Provider Identifier (NPI) is 1043173362, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Marcus's specialty?

James Marcus is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is James Marcus located?

James Marcus's practice location on file with NPPES is 164 E 37th St Apt 2a, New York, NY 10016-3130.

What is James Marcus's phone number?

The practice phone number listed in the NPPES registry for James Marcus is (914) 772-8533.

Is James Marcus's NPI active?

Yes — James Marcus's NPI (1043173362) is active in the NPPES registry as of the last update on 2025-12-04.

IndividualActive

James Marcus

NPI 1043173362 · Social Worker · New York, NY

James Marcus is a Social Worker provider in New York, NY (NPI 1043173362).

Provider details

NPI number: 1043173362
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Social WorkerPrimary104100000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

164 E 37th St Apt 2a

New York, NY 10016-3130

Phone: (914) 772-8533

Street-level locationGet directions

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Mailing address