DR. SAMUEL GROSS MD
NPI 1720235120
Emergency Medicine in Winchester, MA
About Dr. Samuel Gross Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAMUEL GROSS MD (NPI 1720235120) is an individual emergency medicine provider in Winchester, Massachusetts, licensed in Massachusetts (236402) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS, is affiliated with Winchester Hospital, and is a graduate of University Of Wisconsin School Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses
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. Samuel Gross 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
3Medicare enrollment records show Samuel Gross reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 39 clinicians in this Medicare group
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 221 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 477 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 8
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Winchester Hospital
Acute Care Hospitals · Winchester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01890 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.
WINCHESTER, MA 01890
WINCHESTER, MA 01890
WINCHESTER, MA 01890
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 Samuel Gross's NPI number?
The NPI number for Samuel Gross is 1720235120. It was assigned to this individual provider in the NPPES registry on August 27, 2008.
Where is Samuel Gross located?
Samuel Gross practices at 41 Highland Ave, Winchester, MA 01890. The listed phone number is (781) 729-9000.
What is Samuel Gross's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Samuel Gross enrolled in Medicare?
Yes. Samuel Gross 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 Samuel Gross's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Samuel Gross reassigns Medicare benefits to 3 organizations: Winchester Emergency Medical Associates PC (Winchester, MA), Winchester Physician Associates, Inc (Winchester, MA) and Beth Israel Lahey Health Specialty Care, Inc. (Burlington, MA). 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 Samuel Gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Samuel Gross accept?
Health plans from Taro Health list Samuel Gross 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 Samuel Gross affiliated with any hospitals?
According to CMS data, Samuel Gross is affiliated with Winchester Hospital.
When was this NPI record last updated?
The NPPES record for Samuel Gross was last updated on March 23, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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. Samuel Gross, MD · NPI 1720235120
Emergency Medicine physician in Winchester, Massachusetts. Individual provider, active in the CMS NPPES registry since August 27, 2008.
## Identity
- **NPI:** 1720235120 (Entity type: Individual)
- **Enumerated:** August 27, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 236402 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 41 HIGHLAND AVE, Winchester, MA 01890
- **Phone:** (781) 729-9000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Winchester Emergency Medical Associates PC (NPI 1831131473, Winchester, MA); Winchester Physician Associates, Inc (NPI 1184606865, Winchester, MA); Beth Israel Lahey Health Specialty Care, Inc. (NPI 1427161660, Burlington, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** March 23, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1720235120) · Data from the CMS NPPES public registry.