Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Jillian C. Grigoryan-Koster, MD

Individual provider Family Medicine Physician · NPI 1225419385

Dr. Jillian C. Grigoryan-Koster, MD is a Hospitalist in Concord, New Hampshire. Qualified in 2015, 11 years ago. Practices with Concord Hospital Inc, a 569-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
11
Licensed in
NH
In the registry since
2015
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

250 Pleasant St
Concord, NH 03301
Phone: (603) 227-7000
Fax: (603) 227-7191
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 18862 (NH)
Family Medicine Physician Taxonomy 207Q00000X · Licence 18862 (NH)

Record details

NPI number1225419385
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2015
Last updated in NPPESSeptember 12, 2018

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesFAMILY PRACTICE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Concord Hospital Inc — 569 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Concord