What is Graham Volker's NPI number?

Graham Volker's National Provider Identifier (NPI) is 1316039571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Graham Volker's specialty?

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

Where is Graham Volker located?

Graham Volker's practice location on file with NPPES is 2130 E 4th St, Santa Ana, CA 92705-3818.

What is Graham Volker's phone number?

The practice phone number listed in the NPPES registry for Graham Volker is (714) 543-5437.

Is Graham Volker's NPI active?

Yes — Graham Volker's NPI (1316039571) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Graham Volker, PHD

NPI 1316039571 · Clinical Psychologist · Santa Ana, CA

Graham Volker, PHD is a Clinical Psychologist provider in Santa Ana, CA (NPI 1316039571).

Provider details

NPI number: 1316039571
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Male
Sole proprietor: Yes
License: PSY784 (CA)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense PSY784 (CA)
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.

Practice location

2130 E 4th St

Suite 200

Santa Ana, CA 92705-3818

Phone: (714) 543-5437

Street-level locationGet directions

More CA providers

Mailing address