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

Charles M Zacks, MD

Individual provider Ophthalmology Physician · NPI 1790781839

Charles M Zacks, MD is an Ophthalmology Physician in Portland, Maine. Licensed in Maine. Registered with an NPI since 2005.

Licensed in
ME
In the registry since
2005
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

15 Lowell St
Portland, ME 04102-2748
Phone: (207) 774-8277
Fax: (207) 699-5850
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 012866 (ME)

Record details

NPI number1790781839
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2005
Last updated in NPPESSeptember 11, 2025
Certification dateApril 21, 2020
Mailing address15 Lowell St, Portland, ME 04102-2748

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