What is Isak De Vries's NPI number?

Isak De Vries's National Provider Identifier (NPI) is 1386045359, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Isak De Vries's specialty?

Isak De Vries is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Isak De Vries located?

Isak De Vries's practice location on file with NPPES is 80 5th Ave Rm 1206b, New York, NY 10011-8016.

What is Isak De Vries's phone number?

The practice phone number listed in the NPPES registry for Isak De Vries is (630) 649-0857.

Is Isak De Vries's NPI active?

Yes — Isak De Vries's NPI (1386045359) is active in the NPPES registry as of the last update on 2026-04-14.

IndividualActive

Isak De Vries, LCSW

NPI 1386045359 · Clinical Social Worker · New York, NY

Isak De Vries, LCSW is a Clinical Social Worker provider in New York, NY (NPI 1386045359).

Provider details

NPI number: 1386045359
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Male
Sole proprietor: Yes
License: 086604 (NY)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 086604 (NY)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(75/100 index)

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

Registry tenure38% of score
11 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

80 5th Ave Rm 1206b

New York, NY 10011-8016

Phone: (630) 649-0857

Street-level locationGet directions

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Mailing address