Dr. Michael Peter Zacks, MD
- Medicare services, 2023
- 365
- Part D claims, 2024
- 13
- Hospital affiliations
- 1
- Industry payments
- $11
- Medical group
- 1
- Practice address
- 2014 Washington Street, Newton, MA 02462
- Practice phone
- Call (617) 243-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zacks' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael Peter Zacks is an internist in Newton Lower Falls, Massachusetts
Dr. Zacks practices at Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham.
Dr. Zacks' NPI, 1043289622, was assigned on March 16, 2006. Dr. Zacks holds Massachusetts license 216739.
- NPI
- 1043289622NPI Registry (opens in a new tab)
- NPI enumeration date
- March 16, 2006
- NPI status
- Active
- Practice phone
- (617) 243-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Peter Zacks practices at Newton-Wellesley Hospital in Newton, Massachusetts
Dr. Zacks' primary practice is Newton-Wellesley Hospital, at 2014 Washington Street, Newton, MA 02462 in Middlesex County. The practice phone is (617) 243-6000.
- Newton-Wellesley Hospital2014 Washington Street, Newton, MA 02462 · Middlesex CountyPhone(617) 243-6000
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Peter Zacks is affiliated with 1 site of care and 1 medical group
Dr. Zacks' primary practice is Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham. The medical group on file is Mass General Brigham Medical Group.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Peter Zacks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zacks practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Newton-Wellesley Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Peter Zacks is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Zacks' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zacks is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Zacks
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael Peter Zacks billed Medicare for 365 services in 2023
CMS data shows 365 Medicare services from Dr. Zacks across 5 procedure codes in 2023. Medicare paid $25,131 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Zacks' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3382023: 3658%
Dr. Zacks compared with the Massachusetts median for internists, 2023
- Dr. Zacks
- Massachusetts median
- Medicare services
- 365vs 43115% below
- Part D claims
- 11vs 40297% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Zacks' most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Peter Zacks wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Zacks wrote 13 Medicare Part D claims. 85% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $54 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Zacks' Part D claims by kind of drug, 2024
- Generic11 claims85%
- Brand-name and other2 claims15%
Dr. Zacks' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 132024: 1115%
Drugs named by CMS: 1 in 2024, 1 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Michael Peter Zacks received $11 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Zacks from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $11.
Companies that paid Dr. Zacks the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Peter Zacks's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael Peter Zacks
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael Peter Zacks' NPI number?
Dr. Michael Peter Zacks' NPI number is 1043289622. It was assigned on March 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Peter Zacks?
Dr. Michael Peter Zacks is an internist in Newton Lower Falls, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Peter Zacks practice?
Dr. Zacks practices at 2014 Washington Street, Newton, MA 02462. Dr. Zacks' primary practice is Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham.
What is Dr. Michael Peter Zacks' office phone number?
The practice phone on file for Dr. Zacks is (617) 243-6000.
What is Dr. Michael Peter Zacks' medical license number?
Dr. Zacks holds Massachusetts license 216739.
Which hospitals is Dr. Michael Peter Zacks affiliated with?
Dr. Zacks practices at Newton-Wellesley Hospital in Newton, Massachusetts.
What medical group is Dr. Michael Peter Zacks part of?
Dr. Zacks is linked to Mass General Brigham Medical Group.
Does Dr. Michael Peter Zacks accept Medicare?
Yes. CMS data shows Dr. Zacks billed Medicare for 365 services in 2023.
What services does Dr. Michael Peter Zacks bill to Medicare?
In 2023, Dr. Zacks' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99231).
What drugs does Dr. Michael Peter Zacks prescribe most?
In 2024 Medicare Part D data, Dr. Zacks' most prescribed drugs by claims were Allopurinol.
Has Dr. Michael Peter Zacks received payments from drug or device companies?
CMS Open Payments shows $11 in general payments to Dr. Zacks from 1 company from 2016 to 2016. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Michael Peter Zacks been practicing?
Dr. Zacks' NPI was assigned in 2006.
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