Robert S. Greenberg, MD
Internal Medicine Physician · Brockton, MA
Robert S. Greenberg, MD is an internal medicine physician with a practice address in Brockton, Massachusetts, and NPI 1548245038, issued on Dec 7, 2005. Check the license (Massachusetts 36552, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert S. Greenberg
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 36552 MA
Self-reported in NPPES; status is on the state search - Practice location
- 110 Liberty St, Brockton, MA 02301
- Phone
- (508) 894-0400
- Enumerated
- Dec 7, 2005
- Record last updated
- Jan 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (508) 565-0157
- Medicaid ID
- 2051141 MA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
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Verify Robert S. Greenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 36552Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 89.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Robert S. Greenberg among 6,825 internal medicine physician records in Massachusetts
Robert S. Greenberg, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2019 · 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).
111 internal medicine physician records list a practice address in Brockton
They are 111 of the 4,287 NPPES records with a practice address in Brockton, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Brockton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dino Constantinou, MDBrockton, MA 023011770578932
- Paul Coutu, MDBrockton, MA 023011114911757
- Mark Dichter, MDBrockton, MA 023011275527020
- Christopher Johnson, MDBrockton, MA 023011194711523
- Joseph Kagan, MDBrockton, MA 023011851388029
- Roger Kligler, MDBrockton, MA 023011578559985
- Benjamin Lightfoot, MDBrockton, MA 023011497749584
- Richard Lubens, MDBrockton, MA 023011730174392
Common questions
What is Robert S. Greenberg, MD's NPI number?
Robert S. Greenberg, MD's National Provider Identifier (NPI) is 1548245038, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert S. Greenberg, MD located?
The NPPES record lists a practice address at 110 Liberty St, Brockton, MA, 02301. Phone: (508) 894-0400. Providers update this record themselves, so call before visiting.
How can I verify Robert S. Greenberg, MD's license?
NPPES lists Massachusetts license number 36552, 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.
What is Robert S. Greenberg, MD's MIPS final score?
The 2023 MIPS final score is 89.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.