What is John Mayo's NPI number?

John Mayo's National Provider Identifier (NPI) is 1033970710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Mayo's specialty?

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

Where is John Mayo located?

John Mayo's practice location on file with NPPES is 1180 Beacon St Ste 4c, Brookline, MA 02446-3806.

What is John Mayo's phone number?

The practice phone number listed in the NPPES registry for John Mayo is (617) 299-6929.

Is John Mayo's NPI active?

Yes — John Mayo's NPI (1033970710) is active in the NPPES registry as of the last update on 2025-08-11.

IndividualActive

John Mayo

NPI 1033970710 · Mental Health Counselor · Brookline, MA

John Mayo is a Mental Health Counselor provider in Brookline, MA (NPI 1033970710).

Provider details

NPI number: 1033970710
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

Established profile(51/100 index)

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

Registry tenure38% of score
2 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

1180 Beacon St Ste 4c

Brookline, MA 02446-3806

Phone: (617) 299-6929

Street-level locationGet directions

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Mailing address