What is Matthew Sosnowsky's NPI number?

Matthew Sosnowsky's National Provider Identifier (NPI) is 1376806208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Matthew Sosnowsky's specialty?

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

Where is Matthew Sosnowsky located?

Matthew Sosnowsky's practice location on file with NPPES is 148 N 3rd St, Philadelphia, PA 19106-1733.

What is Matthew Sosnowsky's phone number?

The practice phone number listed in the NPPES registry for Matthew Sosnowsky is (610) 217-7955.

Is Matthew Sosnowsky's NPI active?

Yes — Matthew Sosnowsky's NPI (1376806208) is active in the NPPES registry as of the last update on 2021-09-28.

IndividualActive

Matthew Sosnowsky

NPI 1376806208 · Clinical Social Worker · Philadelphia, PA

Matthew Sosnowsky is a Clinical Social Worker provider in Philadelphia, PA (NPI 1376806208).

Provider details

NPI number: 1376806208
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: 18136 (MD)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense LC50080383 (DC)
Behavioral Health & Social Service Providers
Social Worker104100000XLicense 18136 (MD)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(89/100 index)

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

Registry tenure38% of score
14 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

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

148 N 3rd St

Philadelphia, PA 19106-1733

Phone: (610) 217-7955

Street-level locationGet directions

More PA providers

Mailing address

Po Box 40333

Philadelphia, PA 19106-0333

Additional practice locations (2)

2929 Connecticut Ave Nw Apt 406
Washington, DC 20008-1419
Phone: (610) 217-7955
7474 Greenway Center Dr
Suite 730
Greenbelt, MD 20770-3504
Phone: (301) 345-1022

Enumerated: 2012-06-15
Last updated: 2021-09-28
Certified: 2021-09-15

Frequently asked questions

What is Matthew Sosnowsky's NPI number?: Matthew Sosnowsky's National Provider Identifier (NPI) is 1376806208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Matthew Sosnowsky's specialty?: Matthew Sosnowsky is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
Where is Matthew Sosnowsky located?: Matthew Sosnowsky's practice location on file with NPPES is 148 N 3rd St, Philadelphia, PA 19106-1733.
What is Matthew Sosnowsky's phone number?: The practice phone number listed in the NPPES registry for Matthew Sosnowsky is (610) 217-7955.
Is Matthew Sosnowsky's NPI active?: Yes — Matthew Sosnowsky's NPI (1376806208) is active in the NPPES registry as of the last update on 2021-09-28.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.