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

David N Mayer, MD

Individual provider Anesthesiology Physician · NPI 1861465486

David N Mayer, MD practises Anesthesiology in Northampton, Massachusetts. Graduated from Stanford University School of Medicine in 1993, 33 years ago. Practices with Mass General Brigham Medical Group Western Massachusetts Inc, a 293-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
33
Trained at
Stanford University School of Medicine
Licensed in
MA
In the registry since
2006
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

30 Locust St
Northampton, MA 01060-2052 Not confirmed with CMS for 13 years — call before visiting
Phone: (413) 586-8443
Fax: (413) 586-8443
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 253202 (MA)

Record details

NPI number1861465486
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 13, 2006
Last updated in NPPESMarch 27, 2013

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Mass General Brigham Medical Group Western Massachusetts Inc — 293 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients294
Services billed 317 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Cooley Dickinson Hospital Inc,The Hospital · Northampton, MA

Colleagues at Mass General Brigham Medical Group Western Massachusetts Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 293 clinicians in the practice; 12 are shown here.

Other providers in Northampton