What is Gerard Clark's NPI number?

Gerard Clark's National Provider Identifier (NPI) is 1386779759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gerard Clark's specialty?

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

Where is Gerard Clark located?

Gerard Clark's practice location on file with NPPES is 225 S 69th St, Upper Darby, PA 19082-4212.

What is Gerard Clark's phone number?

The practice phone number listed in the NPPES registry for Gerard Clark is (610) 352-8943.

Is Gerard Clark's NPI active?

Yes — Gerard Clark's NPI (1386779759) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Gerard Clark

NPI 1386779759 · Social Worker · Upper Darby, PA

Gerard Clark is a Social Worker provider in Upper Darby, PA (NPI 1386779759).

Provider details

NPI number: 1386779759
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: SW-002765-E (PA)

Practice location

225 S 69th St

Upper Darby, PA 19082-4212

Phone: (610) 352-8943

Fax: (610) 352-8880

Street-level locationGet directions

More PA providers

Mailing address

569 Parker Ave

Philadelphia, PA 19128-2423

Specialties & taxonomies

Social WorkerPrimary104100000XLicense SW-002765-E (PA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 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.

Enumerated: 2007-02-23
Last updated: 2007-07-08

Frequently asked questions

What is Gerard Clark's NPI number?: Gerard Clark's National Provider Identifier (NPI) is 1386779759, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Gerard Clark's specialty?: Gerard Clark is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
Where is Gerard Clark located?: Gerard Clark's practice location on file with NPPES is 225 S 69th St, Upper Darby, PA 19082-4212.
What is Gerard Clark's phone number?: The practice phone number listed in the NPPES registry for Gerard Clark is (610) 352-8943.
Is Gerard Clark's NPI active?: Yes — Gerard Clark's NPI (1386779759) is active in the NPPES registry as of the last update on 2007-07-08.

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

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions