What is Gregory Hertig's NPI number?

Gregory Hertig's National Provider Identifier (NPI) is 1518834357, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gregory Hertig's specialty?

Gregory Hertig is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Gregory Hertig located?

Gregory Hertig's practice location on file with NPPES is 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639.

What is Gregory Hertig's phone number?

The practice phone number listed in the NPPES registry for Gregory Hertig is (623) 738-6642.

Is Gregory Hertig's NPI active?

Yes — Gregory Hertig's NPI (1518834357) is active in the NPPES registry as of the last update on 2025-10-17.

IndividualActive

Gregory Hertig

NPI 1518834357 · Mental Health Counselor · Phoenix, AZ

Gregory Hertig is a Mental Health Counselor provider in Phoenix, AZ (NPI 1518834357).

Provider details

NPI number: 1518834357
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: Yes
License: LAC-23759 (AZ)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense LAC-23759 (AZ)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

4539 N 22nd St Ste R

Phoenix, AZ 85016-4639

Phone: (623) 738-6642

Street-level locationGet directions

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Mailing address