Michael Isaac Shrager, MD
Internal Medicine Physician · Newton, MA
Michael Isaac Shrager, MD is an internal medicine physician with a practice address in Newton, Massachusetts, and NPI 1508483504, issued on Jun 25, 2020. Check the license (Massachusetts 284836, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Michael Isaac Shrager
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 284836 MA
1014369 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2000 Washington St, Newton, MA 02462
- Phone
- (617) 964-9070
- Enumerated
- Jun 25, 2020
- Record last updated
- Dec 15, 2023
- Fax
- (617) 964-2435
- Medicare enrollment
- Enrolled (PECOS I20240409002802); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 2000 Washington St
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Verify Michael Isaac Shrager in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 284836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,465 Medicare Part D claims for 280 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium141 claims
- Lisinopril89 claims
- Amlodipine Besylate87 claims
- Losartan Potassium57 claims
- Simvastatin54 claims
- Levothyroxine Sodium48 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.
Bills Medicare through one group practice
- Mass General Brigham Medical Group Suburban Massachusetts IncNeedham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Isaac Shrager among 6,825 internal medicine physician records in Massachusetts
Michael Isaac Shrager, 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 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 11% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2004 among the 4,103 with a school on file
- Record last updated2023 · 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 Isaac Shrager, MD's NPI number?
Michael Isaac Shrager, MD's National Provider Identifier (NPI) is 1508483504, issued on Jun 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Michael Isaac Shrager, MD located?
The NPPES record lists a practice address at 2000 Washington St, Newton, MA, 02462. Phone: (617) 964-9070. Providers update this record themselves, so call before visiting.
How can I verify Michael Isaac Shrager, MD's license?
NPPES lists Massachusetts license number 284836, 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 Isaac Shrager, MD prescribe under Medicare Part D?
In 2024, Michael Isaac Shrager, MD had 1,465 Medicare Part D claims for 280 beneficiaries; 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.