Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. David Mark Leach, MD

Individual provider Psychiatry Physician · NPI 1295996643

Dr. David Mark Leach, MD practises Psychiatry in Newtown, Pennsylvania. Graduated from Ohio State University College of Medicine in 1986, 40 years ago. Practices with Belmont Behavioral Hospital LLC, an 11-clinician group. Licensed in Pennsylvania.

Years since qualifying
40
Trained at
Ohio State University College of Medicine
Licensed in
PA
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1426 Ridgewood Ln
Newtown, PA 18940-3733 Not confirmed with CMS for 18 years — call before visiting
Phone: (215) 579-7976
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD039284E (PA)

Record details

NPI number1295996643
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 18, 2008
Last updated in NPPESJune 18, 2008

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Belmont Behavioral Hospital Llc — 11 clinicians
Accepts Medicare assignment Not indicated

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 patients101
Services billed 1,122 a service is one billed item, such as a visit, a test or a procedure
Average patient age43

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 Belmont Behavioral Hospital LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 11 clinicians in the practice; 9 are shown here.

Other providers in Newtown