What is Aj Guerrero's NPI number?

Aj Guerrero's National Provider Identifier (NPI) is 1922520840, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Aj Guerrero's specialty?

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

Where is Aj Guerrero located?

Aj Guerrero's practice location on file with NPPES is 3464 Washington St, Boston, MA 02130-2665.

What is Aj Guerrero's phone number?

The practice phone number listed in the NPPES registry for Aj Guerrero is (857) 371-5101.

Is Aj Guerrero's NPI active?

Yes — Aj Guerrero's NPI (1922520840) is active in the NPPES registry as of the last update on 2026-05-06.

IndividualActive

Aj Guerrero, LMHC

NPI 1922520840 · Mental Health Counselor · Boston, MA

Aj Guerrero, LMHC is a Mental Health Counselor provider in Boston, MA (NPI 1922520840).

Provider details

NPI number: 1922520840
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Credential: LMHC
Sex: Female
Sole proprietor: Yes
License: 12054 (MA)

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800XLicense 12054 (MA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(69/100 index)

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

Registry tenure38% of score
8 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

3464 Washington St

Boston, MA 02130-2665

Phone: (857) 371-5101

Street-level locationGet directions

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Mailing address