CHARLES M ZACKS (MD) – Ophthalmology Physician, NPI 1790781839

CHARLES M ZACKS (MD) is a healthcare provider. based in Portland, Maine. specializing in Ophthalmology Physician. They hold the professional credentials MD. They hold a License No. 012866 (ME). The NPI Number for CHARLES M ZACKS (MD) is 1790781839

Main info

Male
42 Years Of Experience
Accepts Medicare Assignment
Name
CHARLES M ZACKS (MD)
NPI
1790781839
Phone
(207) 774-8277
Address
15 LOWELL ST
Enumeration Date
23 June 2005
Last Update Date
11 September 2025

Doctor Profile

Medical School Name
YALE UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
2077748277
Graduation Year
1984 (42 years ago)
PAC ID
9133110331
Group Practice PAC ID
0446240634
Professional Enrollment ID
I20050613000566
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for CHARLES M ZACKS (MD)

  • Maine Eye Center, 15, Lowell Street, Libbytown, Portland, Cumberland County, Maine, 04102, United States

    PORTLAND, ME 041022748

    Phone: (207) 774-8277

    Fax: (207) 699-5850

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $0.

Total Amount is formed as General ($0) + Research ($0) + Ownership ($0) = $0.

Last reported payment date: • Largest payer in this snapshot: US Retina LLC ($0).

Total Amount

$0

General + Research + Ownership

Payments

2

Total payment records

General Amount

$0

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

2

Ownership records

Last Payment Date

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
US Retina LLC$0
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 04102)

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Provider's Procedures

CHARLES M ZACKS (MD) performs procedures in Ophthalmology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
OPHTHALMOLOGYME92012Eye and medical examination for diagnosis and treatment, established patient301185
OPHTHALMOLOGYME92134Diagnostic imaging of retina6150

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0446240634View full group profile
NameSpecialtyState
O P H T H A L M O L O G YME
O P H T H A L M O L O G YNY
O P H T H A L M O L O G YME
O P T O M E T R YOH
O P H T H A L M O L O G YME
O P H T H A L M O L O G YME
-ME
O P T O M E T R YME
O P H T H A L M O L O G YME
O P H T H A L M O L O G YME

Reviews

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Frequently asked questions

Can I cross-check CHARLES M ZACKS (MD) using NPI 1790781839?
NPI 1790781839 belongs to CHARLES M ZACKS (MD); compare other details if you need extra assurance.
Is CHARLES M ZACKS (MD) shown as active in public data?
Registry records indicate CHARLES M ZACKS (MD) maintains an active NPI.
What kind of doctor is CHARLES M ZACKS (MD)?
CHARLES M ZACKS (MD) is associated with Ophthalmology Physician in the directory — Clinical services aligned with this taxonomy classification.
Is CHARLES M ZACKS (MD) located near Portland?
CHARLES M ZACKS (MD) currently maps to Portland, Maine in this extract.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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