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

Dr. Jonathan Taylor Grammer, MD

Individual provider Emergency Medicine Physician · NPI 1003375189

Dr. Jonathan Taylor Grammer, MD is an Emergency Medicine in Brunswick, Maine. Graduated from University of South Alabama College of Medicine in 2019, 7 years ago. Practices with Mount Desert Island Hospital, a 59-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
7
Trained at
University of South Alabama College of Medicine
Licensed in
ME
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

123 Medical Center Dr
Brunswick, ME 04011-2652
Phone: (207) 373-6000
Fax: (207) 373-6080
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 22 Station Ave Ste 102, Brunswick, ME 04011-2092 — (207) 406-7500
  • 50 Union St, Ellsworth, ME 04605-1534 — (207) 664-5311
  • 1 Medical Center Dr, Morgantown, WV 26506-1200 — (304) 293-2436

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD25342 (ME)

Record details

NPI number1003375189
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 18, 2019
Last updated in NPPESApril 6, 2026
Certification dateApril 6, 2026
Mailing address123 Medical Center Dr, Brunswick, ME 04011-2652

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF SOUTH ALABAMA COLLEGE OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Mount Desert Island Hospital — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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