What is David Mark's NPI number?

David Mark's National Provider Identifier (NPI) is 1679716070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is David Mark's specialty?

David Mark is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is David Mark located?

David Mark's practice location on file with NPPES is 408 Anthwyn Rd, Narberth, PA 19072-2302.

What is David Mark's phone number?

The practice phone number listed in the NPPES registry for David Mark is (610) 664-5302.

Is David Mark's NPI active?

Yes — David Mark's NPI (1679716070) is active in the NPPES registry as of the last update on 2009-04-14.

IndividualActive

David Mark, PH.D.

NPI 1679716070 · Clinical Psychologist · Narberth, PA

David Mark, PH.D. is a Clinical Psychologist provider in Narberth, PA (NPI 1679716070).

Provider details

NPI number: 1679716070
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: Yes
License: PS-004947-L (PA)

Practice location

408 Anthwyn Rd

Narberth, PA 19072-2302

Phone: (610) 664-5302

Fax: (215) 349-5171

Street-level locationGet directions

More PA providers

Mailing address

408 Anthwyn Rd

Narberth, PA 19072-2302

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense PS-004947-L (PA)
Behavioral Health & Social Service Providers
Psychoanalyst102L00000XLicense PS-004947-L (PA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(86/100 index)

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

Registry tenure38% of score
17 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: 2009-04-14
Last updated: 2009-04-14

Frequently asked questions

What is David Mark's NPI number?: David Mark's National Provider Identifier (NPI) is 1679716070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is David Mark's specialty?: David Mark is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
Where is David Mark located?: David Mark's practice location on file with NPPES is 408 Anthwyn Rd, Narberth, PA 19072-2302.
What is David Mark's phone number?: The practice phone number listed in the NPPES registry for David Mark is (610) 664-5302.
Is David Mark's NPI active?: Yes — David Mark's NPI (1679716070) is active in the NPPES registry as of the last update on 2009-04-14.

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