Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary Kate R. Hattan, MD

Individual provider Family Medicine Physician · NPI 1154683290

Mary Kate R. Hattan, MD is registered under Family Practice in Concord, New Hampshire. Graduated from Geisel School of Medicine at Dartmouth in 2012, 14 years ago. Practices with Concord Hospital Inc, a 569-clinician group and accepts Medicare assignment. Licensed in Massachusetts and New Hampshire.

Years since qualifying
14
Trained at
Geisel School of Medicine at Dartmouth
Licensed in
MA, NH
In the registry since
2012
Specialties on file
2
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

18 Foundry St Ste 201
Concord, NH 03301-5421
Phone: (603) 228-0071
Fax: (603) 228-7014
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 18176 (NH)
Family Medicine Physician Taxonomy 207Q00000X · Licence 252007 (MA)

Record details

NPI number1154683290
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2012
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolGEISEL SCHOOL OF MEDICINE AT DARTMOUTH
Graduated 2012 (14 years in practice)
Group practice Concord Hospital Inc — 569 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 patients168
Services billed 542 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.

Colleagues at Concord Hospital Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 569 clinicians in the practice; 12 are shown here.

Other providers in Concord