DR. TIMOTHY JAMES MARQUIS MD
NPI 1093334872
Internal Medicine - Hematology & Oncology in Nashua, NH
About Dr. Timothy James Marquis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY JAMES MARQUIS MD (NPI 1093334872) is an individual hematology & oncology provider in Nashua, New Hampshire, licensed in New Hampshire (38489) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Timothy James Marquis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Timothy Marquis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nashua, NH 03060
- Reassigned Medicare billing, New Hampshire enrollment
- 283 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lowell General Hospital
Acute Care Hospitals · Lowell, MATufts Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03060 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.
NASHUA, NH 03060
NASHUA, NH 03060
NASHUA, NH 03060
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 Timothy Marquis's NPI number?
The NPI number for Timothy Marquis is 1093334872. It was assigned to this individual provider in the NPPES registry on April 13, 2020.
Where is Timothy Marquis located?
Timothy Marquis practices at 10 Prospect St, Nashua, NH 03060. The listed phone number is (603) 886-7900.
What is Timothy Marquis's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Timothy Marquis enrolled in Medicare?
Yes. Timothy Marquis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Timothy Marquis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Marquis reassigns Medicare benefits to 3 organizations: Foundation Medical Partners Inc (Nashua, NH), Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, 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 Timothy Marquis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Marquis accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Timothy Marquis 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 Timothy Marquis affiliated with any hospitals?
According to CMS data, Timothy Marquis is affiliated with Lowell General Hospital and Tufts Medical Center.
When was this NPI record last updated?
The NPPES record for Timothy Marquis was last updated on April 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Timothy James Marquis, MD · NPI 1093334872
Hematology & Oncology physician in Nashua, New Hampshire. Individual provider, active in the CMS NPPES registry since April 13, 2020.
## Identity
- **NPI:** 1093334872 (Entity type: Individual)
- **Enumerated:** April 13, 2020
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 38489 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 PROSPECT ST, Nashua, NH 03060-3922
- **Phone:** (603) 886-7900
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Foundation Medical Partners Inc (NPI 1033162037, Nashua, NH); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** April 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1093334872) · Data from the CMS NPPES public registry.