MARK A MACKLIS (M.D.) – Obstetrics & Gynecology Physician, NPI 1003856543

Obstetrics & Gynecology Physician

MARK A MACKLIS (M.D.) is a healthcare provider. based in Wilmington, Massachusetts. specializing in Obstetrics & Gynecology Physician. They hold the professional credentials M.D.. They hold a License No. 56887 (MA). The NPI Number for MARK A MACKLIS (M.D.) is 1003856543

Main info

Male

47 Years Of Experience

Accepts Medicare Assignment

Name

MARK A MACKLIS (M.D.)

NPI

1003856543

Phone

(978) 988-6240

Address

500 SALEM ST

Enumeration Date

6 June 2006

Last Update Date

8 July 2007

Doctor Profile

Medical School Name

PENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE

Secondary Phone

9786870151

Graduation Year

1979 (47 years ago)

PAC ID

4183797939

Group Practice PAC ID

8426317942

Professional Enrollment ID

I20080726000135

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience54

Completeness75

Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for MARK A MACKLIS (M.D.)

500, Salem Street, Wilmington, Middlesex County, Massachusetts, 01864-1298, United States
WILMINGTON, MA 018871200
Phone: (978) 988-6240
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)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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 01887)

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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: 8426317942View full group profile

Name	Specialty	State
MICHELE JOHNSON (M.D.)	-	MA

Reviews

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Frequently asked questions

How is MARK A MACKLIS (M.D.) identified in CMS data?

CMS-hosted NPPES data lists MARK A MACKLIS (M.D.) with NPI 1003856543.

Can I rely on MARK A MACKLIS (M.D.) being an active provider?

As of the registry snapshot, MARK A MACKLIS (M.D.) is marked active.

What is MARK A MACKLIS (M.D.)'s primary classification?

Obstetrics & Gynecology Physician is the headline specialty for MARK A MACKLIS (M.D.) here. Clinical services aligned with this taxonomy classification.

Does MARK A MACKLIS (M.D.) list a practice location?

Patients near Wilmington, Massachusetts may find MARK A MACKLIS (M.D.) in results; validate coverage separately.

Is the information about MARK A MACKLIS (M.D.) up to date?

Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."