DR. MARC MICHAEL GROSSMAN MD
NPI 1598799025
Emergency Medicine in Derry, NH
About Dr. Marc Michael Grossman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARC MICHAEL GROSSMAN MD (NPI 1598799025) is an individual emergency medicine provider in Derry, New Hampshire, licensed in Massachusetts (281595) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Marc Michael Grossman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Marc Grossman reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Derry, NH 03038
- Reassigned Medicare billing, New Hampshire enrollment
- 145 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 69 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 195 clinicians in this Medicare group
Orlando, FL 32801
- Reassigned Medicare billing, Florida enrollment
- 24 clinicians in this Medicare group
Coral Gables, FL 33146
- Reassigned Medicare billing, Florida enrollment
- Medicare enrollment name: Er Stat Inc
- 32 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Boston Medical Center
Acute Care Hospitals · Boston, MAGood Samaritan Medical Center
Acute Care Hospitals · Brockton, MAParkland Medical Center
Acute Care Hospitals · Derry, NHPortsmouth Regional Hospital
Acute Care Hospitals · Portsmouth, NHCatholic Medical Center
Acute Care Hospitals · Manchester, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03038 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marc Grossman's NPI number?
The NPI number for Marc Grossman is 1598799025. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is Marc Grossman located?
Marc Grossman practices at 1 Parkland Dr Parkland Medical Center, Derry, NH 03038. The listed phone number is (305) 415-1258.
What is Marc Grossman's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Marc Grossman enrolled in Medicare?
Yes. Marc Grossman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Marc Grossman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Grossman reassigns Medicare benefits to 6 organizations: Emergency Medicine Services Of Nh, LLC (Derry, NH), Boston Emergency Physician Foundation, Inc. (Boston, MA), Bmc Affiliated Physicians, Inc. (Boston, MA), Child Health Foundation Of Boston, Inc. (Boston, MA), Tele911 Florida Emergency Medical Group, P.A. (Orlando, FL) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marc Grossman accept?
Health plans from Taro Health and WellSense Health Plan list Marc Grossman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Marc Grossman affiliated with any hospitals?
According to CMS data, Marc Grossman is affiliated with Boston Medical Center, Good Samaritan Medical Center, Parkland Medical Center, Portsmouth Regional Hospital and Catholic Medical Center.
When was this NPI record last updated?
The NPPES record for Marc Grossman was last updated on October 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Marc Michael Grossman, MD · NPI 1598799025
Emergency Medicine physician in Derry, New Hampshire. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1598799025 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 281595 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 PARKLAND DR, PARKLAND MEDICAL CENTER, Derry, NH 03038
- **Phone:** (305) 415-1258
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Emergency Medicine Services Of Nh, LLC (NPI 1386341444, Derry, NH); Boston Emergency Physician Foundation, Inc. (NPI 1427005859, Boston, MA); Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA); Child Health Foundation Of Boston, Inc. (NPI 1619969920, Boston, MA); Tele911 Florida Emergency Medical Group, P.A. (NPI 1063174647, Orlando, FL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** October 8, 2024
- **Other identifiers:** Other 215356; Other ME93276 (FL); Other MA70946 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1598799025) · Data from the CMS NPPES public registry.