NPPES file of Aug 9, 2026

Marc Michael Grossman, MD

Emergency Medicine Physician · Derry, NH

Marc Michael Grossman, MD is an emergency medicine physician with a practice address in Derry, New Hampshire, and NPI 1598799025, issued on Jul 10, 2006. Check the license on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598799025
Name
Marc Michael Grossman
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
281595 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Parkland Dr, Derry, NH 03038
Phone
(305) 415-1258
Enumerated
Jul 10, 2006
Record last updated
Oct 8, 2024
Medicare enrollment
Enrolled (PECOS I20241014003261); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Parkland Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alaa Azzouqa, M.D.Hospitalist Physician1386195469
  2. Summer Bell, APRNFamily Nurse Practitioner1154031292
  3. Alexis Boyatsis, PA-CPhysician Assistant1376986935
  4. David Bryson, PA-CMedical Physician Assistant1043236011
  5. Kyle Cahill, OTR/LOccupational Therapist1720612054
  6. Daanish Chippa, M.D.Internal Medicine Physician1316324163

Verify Marc Michael Grossman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of MedicineCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% more Medicare Part D claims than the average emergency medicine physician in 2024

445 Medicare Part D claims for 293 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 45 claims were for opioids.

  1. Marc Grossman445
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt50 claims
  2. Naproxen40 claims
  3. Methylprednisolone33 claims
  4. Tramadol Hcl33 claims
  5. Amoxicillin-Clavulanate Potass27 claims
  6. Azithromycin21 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Bmc Affiliated Physicians, Inc.Brockton, MA
  2. Boston Emergency Physician Foundation IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marc Michael Grossman among 351 emergency medicine physician records in New Hampshire

Marc Michael Grossman, MD is one of 351 emergency medicine physician records with a practice address in New Hampshire. 76% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 53% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1997 · median 2011 among the 205 with a school on file
  • Record last updated2024 · 62% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in New Hampshire

There are 351 emergency medicine physician records in New Hampshire.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Maria Diaz, M.D.Derry, NH 030381013142959
  2. Brian Gretta, M.D.Derry, NH 030381659356384
  3. Da Le, MDDerry, NH 030381477578623
  4. Amy Margolis, DODerry, NH 030381295760841
  5. Thomas Scott, DODerry, NH 030381184643546
  6. Henry Wagner, MDDerry, NH 030381184643587
  7. Mark Feldman, M.D.Hudson, NH 030511700115250
  8. Joseph Cardeiro, M.D.Nashua, NH 030601659470714

Common questions

What is Marc Michael Grossman, MD's NPI number?

Marc Michael Grossman, MD's National Provider Identifier (NPI) is 1598799025, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marc Michael Grossman, MD located?

The NPPES record lists a practice address at 1 Parkland Dr, Derry, NH, 03038. Phone: (305) 415-1258. Providers update this record themselves, so call before visiting.

How can I verify Marc Michael Grossman, MD's license?

Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marc Michael Grossman, MD prescribe under Medicare Part D?

In 2024, Marc Michael Grossman, MD had 445 Medicare Part D claims for 293 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Marc Michael Grossman, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.