DR. JONATHAN WILFRED SIXON M.D.
NPI 1114027570
Family Medicine in Milford, NH
About Dr. Jonathan Wilfred Sixon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JONATHAN WILFRED SIXON M.D. (NPI 1114027570) is an individual family medicine provider in Milford, New Hampshire, licensed in New Hampshire (12080) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of State University Of New York Downstate Medical Center (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 and accepts Medicare assignment
Dr. Jonathan Wilfred Sixon M.d. 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 Reassignment
Medicare enrollment records show Jonathan Sixon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milford, NH 03055
- Reassigned Medicare billing, New Hampshire enrollment
- 386 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 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Hospital
Acute Care Hospitals · Nashua, NHSouthern Nh Medical Center
Acute Care Hospitals · Nashua, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03055 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILFORD, NH 03055
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 Jonathan Sixon's NPI number?
The NPI number for Jonathan Sixon is 1114027570. It was assigned to this individual provider in the NPPES registry on September 25, 2006.
Where is Jonathan Sixon located?
Jonathan Sixon practices at 444 Nashua St, Milford, NH 03055. The listed phone number is (603) 673-3014.
What is Jonathan Sixon's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Jonathan Sixon enrolled in Medicare?
Yes. Jonathan Sixon 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 organization bills Medicare for Jonathan Sixon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Sixon reassigns Medicare benefits to St Joseph Hospital Of Nashua Nh (Milford, NH). The 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 Jonathan Sixon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jonathan Sixon accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Jonathan Sixon 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 Jonathan Sixon affiliated with any hospitals?
According to CMS data, Jonathan Sixon is affiliated with St Joseph Hospital and Southern Nh Medical Center.
When was this NPI record last updated?
The NPPES record for Jonathan Sixon was last updated on May 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Jonathan Wilfred Sixon, M.D. · NPI 1114027570
Family Medicine physician in Milford, New Hampshire. Individual provider, active in the CMS NPPES registry since September 25, 2006.
## Identity
- **NPI:** 1114027570 (Entity type: Individual)
- **Enumerated:** September 25, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 12080 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 444 NASHUA ST, Milford, NH 03055-4915
- **Phone:** (603) 673-3014 · **Fax:** (603) 672-7654
## 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:** St Joseph Hospital Of Nashua Nh (NPI 1437758679, Milford, NH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York Downstate Medical Center, class of 2000
## Record status
- **NPPES last updated:** May 22, 2020
- **Other identifiers:** Medicaid 3073830 (NH)
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Source: [NPI Profile](https://npiprofile.com/npi/1114027570) · Data from the CMS NPPES public registry.