What is Mark Hallahan's NPI number?

Mark Hallahan's National Provider Identifier (NPI) is 1780995779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Hallahan's specialty?

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

Where is Mark Hallahan located?

Mark Hallahan's practice location on file with NPPES is 1664 Broadway, El Cajon, CA 92021-5201.

What is Mark Hallahan's phone number?

The practice phone number listed in the NPPES registry for Mark Hallahan is (619) 579-8658.

Is Mark Hallahan's NPI active?

Yes — Mark Hallahan's NPI (1780995779) is active in the NPPES registry as of the last update on 2010-06-24.

IndividualActive

Mark Hallahan

NPI 1780995779 · Mental Health Counselor · El Cajon, CA

Mark Hallahan is a Mental Health Counselor provider in El Cajon, CA (NPI 1780995779).

Provider details

NPI number: 1780995779
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(77/100 index)

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

Registry tenure38% of score
15 yrs in NPPES registry
Profile completeness38% of score
83% 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

1664 Broadway

Halcyon Center

El Cajon, CA 92021-5201

Phone: (619) 579-8658

Street-level locationGet directions

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Mailing address