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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. DANIEL OLAVARRIA DSW, LCSW, LICSW
NPI 1558748632
Social Worker - Clinical in Philadelphia, PA

Active since April 28, 2015
255 S 17TH ST STE 1410, PHILADELPHIA, PA 19103(646) 760-8421 Get Directions Write a Review

NPPES record last updated: August 15, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 15, 2026, Apr 30, 2026, Apr 3, 2026 and 6 more (9 updates tracked since 2018).

About Dr. Daniel Olavarria Dsw, Lcsw, Licsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DANIEL OLAVARRIA DSW, LCSW, LICSW (NPI 1558748632) is an individual clinical provider in Philadelphia, Pennsylvania, licensed in New York (086060) and active in the NPI registry since April 2015. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1558748632
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameDR. DANIEL OLAVARRIACredential: DSW, LCSW, LICSW
Location Address255 S 17TH ST STE 1410Philadelphia, PA 19103-6214
Mailing Address228 Park Ave S, Pmb 16968New York, NY 10003-1502 · (646) 760-8421 · Fax (646) 921-9525
Phone(646) 760-8421
Sole ProprietorYes
Enumeration DateApril 28, 2015
Last NPPES UpdateAugust 15, 20269 updates tracked since enumeration
NPPES CertifiedAugust 15, 2026
✔ NPI 1558748632 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in NY · 086060✔ Licensed in MA · LICSW1142729✔ Licensed in IL · 149.041494✔ Licensed in FL · TPSW315✔ Licensed in VT · 089.0136906TELE✔ Licensed in DE · Q5-0000332✔ Licensed in CA · 102282✔ Licensed in NJ · 44SC06085800✔ Licensed in PA · CW025421✔ Licensed in CO · CSW.09932740✔ Licensed in CT · 58.016882✔ Licensed in ID · 5771391✔ Licensed in SC · TLS515-CP
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
255 S 17TH ST STE 1410, Philadelphia, PA 19103
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Secondary Practice Locations 2

Location 12028 Rittenhouse Sq # 301Philadelphia, PA 19103-5621 · Phone (646) 760-8421 · Fax (646) 921-9525
Location 2228 Park Ave S, PMB 16968New York, NY 10003-1502 · Phone (646) 760-8421 · Fax (646) 921-9525

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THE CITY PSYCHOTHERAPY NEW YORK, LCSW, PLLC
Social Worker (Clinical)
255 S 17TH ST STE 1410
PHILADELPHIA, PA 19103
Philadelphia County (646) 760-8421
MICHAEL MONTERO
Social Worker (Clinical)
255 S 17TH ST STE 1410
PHILADELPHIA, PA 19103
Philadelphia County (646) 760-8421
MATTHEW SATO LMSW
Social Worker
255 S 17TH ST STE 1410
PHILADELPHIA, PA 19103
Philadelphia County (646) 760-8421
KATHLEEN ZHENG
Social Worker
255 S 17TH ST STE 1410
PHILADELPHIA, PA 19103
Philadelphia County (646) 760-8421
ALEXANDREA JOHNSON LMSW
Social Worker
255 S 17TH ST STE 1410
PHILADELPHIA, PA 19103
Philadelphia County (646) 760-8421

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Daniel Olavarria's NPI number?

The NPI number for Daniel Olavarria is 1558748632. It was assigned to this individual provider in the NPPES registry on April 28, 2015.

Where is Daniel Olavarria located?

Daniel Olavarria practices at 255 S 17th St Ste 1410, Philadelphia, PA 19103. The listed phone number is (646) 760-8421.

What is Daniel Olavarria's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Daniel Olavarria was last updated on August 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.