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CHARLES M ZACKS MD
NPI 1790781839
Ophthalmology in Portland, ME

Active since June 23, 2005
15 LOWELL ST, PORTLAND, ME 04102(207) 774-8277(207) 699-5850 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 11, 2025, Apr 21, 2020, Nov 7, 2016 (3 updates tracked since 2016).

About Charles M Zacks Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHARLES M ZACKS MD (NPI 1790781839) is an individual ophthalmology provider in Portland, Maine, licensed in Maine (012866) and active in the NPI registry since June 2005.

NPPES Registry Identity

NPI1790781839
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameCHARLES M ZACKSCredential: MD
Location Address15 LOWELL STPortland, ME 04102-2748
Mailing Address15 Lowell StPortland, ME 04102-2748 · (207) 774-8277 · Fax (207) 699-5850
Phone(207) 774-8277
Fax(207) 699-5850
Sole ProprietorNo
Enumeration DateJune 23, 2005
Last NPPES UpdateSeptember 11, 20253 updates tracked since enumeration
NPPES CertifiedApril 21, 2020
✔ NPI 1790781839 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in ME · 012866
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HALLIE RAE HAHN MD
Ophthalmology
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277
MR. SIRUS HAMZAVI M.D.
Ophthalmology
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277
ROBERT S CADY MD
Ophthalmology (Glaucoma Specialist)
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277
HANNAH GLEZEN CALVELLI OD
Optometrist
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 523-5388
CURTIS MACKAY LIBBY MD
Ophthalmology (Glaucoma Specialist)
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277
FRANK WILDMAN READ MD
Ophthalmology
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277
DR. BROOKE E MILLER MD
Ophthalmology
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277
MARGARET POLLARD
Ophthalmology
15 LOWELL ST
PORTLAND, ME 04102
Cumberland County (207) 774-8277

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Charles Zacks's NPI number?

The NPI number for Charles Zacks is 1790781839. It was assigned to this individual provider in the NPPES registry on June 23, 2005.

Where is Charles Zacks located?

Charles Zacks practices at 15 Lowell St, Portland, ME 04102. The listed phone number is (207) 774-8277.

What is Charles Zacks's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

When was this NPI record last updated?

The NPPES record for Charles Zacks was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.