Christopher Gruenberg, M.D.
Emergency Medicine Physician · Methuen, MA
Christopher Gruenberg, M.D. is an emergency medicine physician with a practice address in Methuen, Massachusetts, and NPI 1225371305, issued on Mar 27, 2013. Check the license (Massachusetts 270285, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Christopher Gruenberg
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 270285 MA
Self-reported in NPPES; status is on the state search - Practice location
- 70 East St, Methuen, MA 01844
- Phone
- (978) 687-0151
- Enumerated
- Mar 27, 2013
- Record last updated
- Dec 4, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 1225371305 MA
- Medicare enrollment
- Enrolled (PECOS I20240102000653); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,829 in Massachusetts → Look up another NPI →
Also registered at 70 East St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher Gruenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 270285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average emergency medicine physician in 2024
194 Medicare Part D claims for 137 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass25 claims
- Ondansetron Odt19 claims
- Cefpodoxime Proxetil16 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 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).
Bills Medicare through one group practice
- Emergency Physicians OF St Petersburg PASt Petersburg, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Gruenberg among 1,829 emergency medicine physician records in Massachusetts
Christopher Gruenberg, M.D. is one of 1,829 emergency medicine physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 65% of them.
- NPI issued2013 · 65% of these records are older, 33% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2013 · median 2011 among the 1,200 with a school on file
- Record last updated2017 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 emergency medicine physician records list a practice address in Methuen
They are 13 of the 881 NPPES records with a practice address in Methuen, and 1,829 emergency medicine physician records in Massachusetts.
All 1,829 in Massachusetts → Every provider in Methuen → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Vicente Banigan, M.D.Methuen, MA 018441417002734
- Steven Crespo, M.D.Methuen, MA 018441184697104
- Shawn Gliklich, M.D.Methuen, MA 018441932289311
- Marc Gorayeb, M.D.Methuen, MA 018441689723066
- Amanda Lieu, MDMethuen, MA 018441275970840
- Jeffrey Lightfoot, MDMethuen, MA 018441588642680
- Brian Lisse, M.D.Methuen, MA 018441316971070
- John Lozada, M.D.Methuen, MA 018441982613105
Common questions
What is Christopher Gruenberg, M.D.'s NPI number?
Christopher Gruenberg, M.D.'s National Provider Identifier (NPI) is 1225371305, issued on Mar 27, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Gruenberg, M.D. located?
The NPPES record lists a practice address at 70 East St, Methuen, MA, 01844. Phone: (978) 687-0151. Providers update this record themselves, so call before visiting.
How can I verify Christopher Gruenberg, M.D.'s license?
NPPES lists Massachusetts license number 270285, 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 Christopher Gruenberg, M.D. prescribe under Medicare Part D?
In 2024, Christopher Gruenberg, M.D. had 194 Medicare Part D claims for 137 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Christopher Gruenberg, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.3 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.