What is Mengjun Xu's NPI number?

Mengjun Xu's National Provider Identifier (NPI) is 1659226215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mengjun Xu's specialty?

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

Where is Mengjun Xu located?

Mengjun Xu's practice location on file with NPPES is 34 Ash St Apt 204, Cambridge, MA 02138-4800.

What is Mengjun Xu's phone number?

The practice phone number listed in the NPPES registry for Mengjun Xu is (917) 385-5086.

Is Mengjun Xu's NPI active?

Yes — Mengjun Xu's NPI (1659226215) is active in the NPPES registry as of the last update on 2026-02-28.

IndividualActive

Mengjun Xu

NPI 1659226215 · Counselor · Cambridge, MA

Mengjun Xu is a Counselor provider in Cambridge, MA (NPI 1659226215).

Provider details

NPI number: 1659226215
Entity type: Individual
Primary specialty: CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

CounselorPrimary101Y00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 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
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

34 Ash St Apt 204

Cambridge, MA 02138-4800

Phone: (917) 385-5086

Street-level locationGet directions

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Mailing address