DR. MARC HILLER MD
NPI 1851786180
Emergency Medicine in Woodbridge, VA
About Dr. Marc Hiller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARC HILLER MD (NPI 1851786180) is an individual emergency medicine provider in Woodbridge, Virginia, licensed in Massachusetts (1014312) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Lawrence General Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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 Hiller 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
4Medicare enrollment records show Marc Hiller reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worcester, MA 01608
- Reassigned Medicare billing, Massachusetts enrollment
- 90 clinicians in this Medicare group
Woonsocket, RI 02895
- Reassigned Medicare billing, Rhode Island enrollment
- 50 clinicians in this Medicare group
Methuen, MA 01844
- Reassigned Medicare billing, Massachusetts enrollment
- 258 clinicians in this Medicare group
Lawrence, MA 01841
- Reassigned Medicare billing, Massachusetts enrollment
- 305 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 2
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lawrence General Hospital
Acute Care Hospitals · Lawrence, MAMetrowest Medical Center
Acute Care Hospitals · Framingham, MALandmark Medical Center
Acute Care Hospitals · Woonsocket, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22191 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
WOODBRIDGE, VA 22191
WOODBRIDGE, VA 22191
WOODBRIDGE, VA 22191
WOODBRIDGE, VA 22191
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 Hiller's NPI number?
The NPI number for Marc Hiller is 1851786180. It was assigned to this individual provider in the NPPES registry on April 3, 2015.
Where is Marc Hiller located?
Marc Hiller practices at 2300 Opitz Blvd, Woodbridge, VA 22191. The listed phone number is (703) 523-1000.
What is Marc Hiller's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Marc Hiller enrolled in Medicare?
Yes. Marc Hiller 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 Hiller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marc Hiller reassigns Medicare benefits to 4 organizations: Emergency Physician Associates Of Massachusetts PC (Worcester, MA), Emergency Associates Of Woonsocket LLC (Woonsocket, RI), Lawrence General Hospital (Methuen, MA) and Community Medical Associates, Inc. (Lawrence, 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 Marc Hiller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marc Hiller accept?
Health plans from Taro Health list Marc Hiller 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 Hiller affiliated with any hospitals?
According to CMS data, Marc Hiller is affiliated with Lawrence General Hospital, Metrowest Medical Center and Landmark Medical Center.
When was this NPI record last updated?
The NPPES record for Marc Hiller was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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 Hiller, MD · NPI 1851786180
Emergency Medicine physician in Woodbridge, Virginia. Individual provider, active in the CMS NPPES registry since April 3, 2015.
## Identity
- **NPI:** 1851786180 (Entity type: Individual)
- **Enumerated:** April 3, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 1014312 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2300 OPITZ BLVD, Woodbridge, VA 22191
- **Phone:** (703) 523-1000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Emergency Physician Associates Of Massachusetts PC (NPI 1730885252, Worcester, MA); Emergency Associates Of Woonsocket LLC (NPI 1912342528, Woonsocket, RI); Lawrence General Hospital (NPI 1922514744, Methuen, MA); Community Medical Associates, Inc. (NPI 1144544040, Lawrence, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** August 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1851786180) · Data from the CMS NPPES public registry.