Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mark Santello, PHD

Individual provider Clinical Psychologist · NPI 1184679383

Mark Santello, PHD is a Clinical Psychologist in Belmont, Massachusetts. Graduated from University of Vermont College of Medicine in 1992, 34 years ago. Practices with The McLean Hospital Corporation, a 186-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
34
Trained at
University of Vermont College of Medicine
Licensed in
MA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

115 Mill St
Belmont, MA 02478-1041
Phone: (617) 855-3839
Fax: (617) 855-2699
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 6601 (MA)

Record details

NPI number1184679383
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 24, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolUNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice The McLean Hospital Corporation — 186 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients36
Services billed 166 a service is one billed item, such as a visit, a test or a procedure
Average patient age61

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at The McLean Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 186 clinicians in the practice; 12 are shown here.

Other providers in Belmont