Michael Peter Zacks, MD
Internal Medicine Physician · Newton, MA
Michael Peter Zacks, MD is an internal medicine physician with a practice address in Newton, Massachusetts, and NPI 1043289622, issued on Mar 16, 2006. Check the license (Massachusetts 216739, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Michael Peter Zacks
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 216739 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2014 Washington Street, Newton, MA 02462
- Phone
- (617) 243-6896
- Enumerated
- Mar 16, 2006
- Record last updated
- Oct 16, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (617) 243-5148
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 2014 Washington Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Peter Zacks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 216739Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
13 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Allopurinol11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Michael Peter Zacks among 6,825 internal medicine physician records in Massachusetts
Michael Peter Zacks, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2009 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
80 internal medicine physician records list a practice address in Newton
They are 80 of the 2,975 NPPES records with a practice address in Newton, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Newton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Cunningham, M.D.Newton Lower Falls, MA 024621326153503
- Allan Engel, M.D.Newton Lower Falls, MA 024621104813443
- Arthur Kennedy, M.D.Newton, MA 024621043223266
- Nicholas Michael Mascoli, M.D.Newton Lower Falls, MA 024621013964717
- John O Brien, MDNewton Lower Falls, MA 024621588678965
- Steven Pestka, M.D.Newton, MA 024621407807498
- Harry Schrager, M.D.Newton, MA 024621871540666
- David Wachs, M.D.Newton, MA 024621073571436
Common questions
What is Michael Peter Zacks, MD's NPI number?
Michael Peter Zacks, MD's National Provider Identifier (NPI) is 1043289622, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Peter Zacks, MD located?
The NPPES record lists a practice address at 2014 Washington Street, Newton, MA, 02462. Phone: (617) 243-6896. Providers update this record themselves, so call before visiting.
How can I verify Michael Peter Zacks, MD's license?
NPPES lists Massachusetts license number 216739, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Peter Zacks, MD prescribe under Medicare Part D?
In 2024, Michael Peter Zacks, MD had 13 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.