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

Heather Wark, MD

Individual provider Internal Medicine Physician · NPI 1063422749

Heather Wark, MD practises Internal Medicine in Northampton, Massachusetts. Graduated from University of Vermont College of Medicine in 1991, 35 years ago. Practices with Heather Wark MD LLC, a 2-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
35
Trained at
University of Vermont College 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

548 Elm St
Northampton, MA 01060-2832
Phone: (413) 586-3150
Fax: (413) 774-7049
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 76508 (MA)

Record details

NPI number1063422749
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 8, 2006
Last updated in NPPESApril 9, 2021
Certification dateApril 9, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Heather Wark Md Llc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients143
Services billed 757 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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. Those with a page here are linked.

  • Care One At Northampton Nursing home · Northampton, MA · listed as 548 Elm Street Operating Company, LLC
  • Cooley Dickinson Hospital Inc,The Hospital · Northampton, MA
  • Ascend Hospice Hospice · Worcester, MA

Colleagues at Heather Wark MD LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Northampton