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

Individual provider Internal Medicine Physician · NPI 1346877073

Dr. David Yarnall Jackson, DO is an Internal Medicine in Portland, Maine. Graduated from University of New England, College of Osteo Medicine in 2020, 6 years ago. Practices with Mainehealth, a 2,615-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
6
Trained at
University of New England, College of Osteo Medicine
Licensed in
ME
In the registry since
2020
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

22 Bramhall St
Portland, ME 04102-3134
Phone: (207) 662-4618
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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 DO3659 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence DO3659 (ME)

Record details

NPI number1346877073
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 24, 2020
Last updated in NPPESMarch 4, 2025
Certification dateMarch 4, 2025
Mailing address22 Bramhall St, Portland, ME 04102-3134

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 2020 (6 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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