Ellis A Johnson, MD

Individual provider Hospitalist Physician · NPI 1215196985

Ellis A Johnson, MD practises Internal Medicine in Westbrook, Maine. Qualified in 2008, 18 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Maine.

Years since qualifying: 18
Licensed in: ME
In the registry since: 2008
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

1 Harnois Ave
Westbrook, ME 04092-4392
Phone: (207) 662-1340
Fax: (207) 662-1341

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

Additional practice locations (2)

5 Bucknam Rd Ste 2b, Falmouth, ME 04105-1209 — (207) 781-1600
22 Bramhall St, Portland, ME 04102-3134 — (207) 662-4618

Specialties & licences

Internal Medicine Physician (primary)	Taxonomy 207R00000X · Licence MD18827 (ME)
Hospitalist Physician	Taxonomy 208M00000X · Licence MD18827 (ME)

Record details

NPI number	1215196985
Entity type	Individual (Type 1)
Gender	Male
Credentials	MD
Sole proprietor	No
NPI enumerated	June 6, 2008
Last updated in NPPES	March 13, 2025
Certification date	March 13, 2025

Medicare enrollment

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

Medicare specialty	INTERNAL MEDICINE
Medical school	OTHER
Graduated	2008 (18 years in practice)
Group practice	Mainehealth — 2615 clinicians
Accepts Medicare assignment	Yes — accepts the Medicare-approved amount
Telehealth	Offers telehealth services
Practice locations	3 on file with Medicare

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 patients	261
Services billed	720 a service is one billed item, such as a visit, a test or a procedure
Average patient age	75

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.

Mainehealth Maine Medical Center Hospital · Portland, ME · listed as Maine Medical Center
Northern Light Mercy Hospital Hospital · Portland, ME
Amedisys Home Health Home health agency · Portland, ME
Centerwell Home Health Home health agency · South Portland, ME
Mainehealth Home Health And Hospice Home health agency · Saco, ME
Northern Light Home Care & Hospice Home health agency · So Portland, ME
Andwell Health Partners Hospice · Scarborough, ME
Northern Light Home Care & Hospice Hospice · South Portland, ME

Colleagues at Mainehealth

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2615 clinicians in the practice; 12 are shown here.

Dr. Jennifer E Bolton, MD Surgery Physician · Portland, ME
Sarah L Cote, ANP Nurse Practitioner · Windham, ME
Monique A Drake, PA-C Athletic Trainer · Kennebunk, ME
Lesley Brown Gordon, MD Internal Medicine Physician · Portland, ME
Amanda Graber, FNP Nurse Practitioner · Cornish, ME
Tatyana Heer, PA Physician Assistant · Brunswick, ME
Natasha Lantz, MD Family Medicine Physician · Skowhegan, ME
Mrs. Anne Pugh Newman, CRNA Certified Registered Nurse Anesthetist · Portland, ME
Chuong Nguyen Clinical Social Worker · Waldoboro, ME
Holly Ann Stone, AGPCNP Nurse Practitioner · Portland, ME
Andreas P. Thyssen, MD Pediatrics Physician · Brunswick, ME
Dr. Mays Zubair, MD General Practice Physician · Norway, ME