MRS. SUSAN MARGARET LUDWIG NP
NPI 1679873145
Nurse Practitioner - Family in Medford, MA
About Mrs. Susan Margaret Ludwig Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. SUSAN MARGARET LUDWIG NP (NPI 1679873145) is an individual family provider in Medford, Massachusetts, licensed in Massachusetts (RN251531) and active in the NPI registry since October 2010. She is enrolled in Medicare PECOS, is affiliated with Melrosewakefield Healthcare, and is a graduate of University Of Massachusetts Medical School (2010).
NPPES Registry Identity
Specialties & Licenses 2
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
Mrs. Susan Margaret Ludwig Np 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
2Medicare enrollment records show Susan Ludwig reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Melrose, MA 02176
- Reassigned Medicare billing, Massachusetts enrollment
- 176 clinicians in this Medicare group
Peabody, MA 01960
- Reassigned Medicare billing, Massachusetts enrollment
- 1,841 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Melrosewakefield Healthcare
Acute Care Hospitals · Melrose, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02155 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.
MEDFORD, MA 02155
MEDFORD, MA 02155
MEDFORD, MA 02155
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 Susan Ludwig's NPI number?
The NPI number for Susan Ludwig is 1679873145. It was assigned to this individual provider in the NPPES registry on October 29, 2010.
Where is Susan Ludwig located?
Susan Ludwig practices at 170 Governors Ave, Medford, MA 02155. The listed phone number is (781) 979-3000.
What is Susan Ludwig's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Susan Ludwig enrolled in Medicare?
Yes. Susan Ludwig 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 Susan Ludwig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Ludwig reassigns Medicare benefits to 2 organizations: Massachusetts Acute Care Specialists PC (Melrose, MA) and Lahey Clinic, Inc (Peabody, 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 Susan Ludwig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Susan Ludwig accept?
Health plans from Taro Health list Susan Ludwig 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 Susan Ludwig affiliated with any hospitals?
According to CMS data, Susan Ludwig is affiliated with Melrosewakefield Healthcare.
When was this NPI record last updated?
The NPPES record for Susan Ludwig was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Mrs. Susan Margaret Ludwig, NP · NPI 1679873145
Family physician in Medford, Massachusetts. Individual provider, active in the CMS NPPES registry since October 29, 2010.
## Identity
- **NPI:** 1679873145 (Entity type: Individual)
- **Enumerated:** October 29, 2010
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** RN251531 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 170 GOVERNORS AVE, Medford, MA 02155-1643
- **Phone:** (781) 979-3000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts Acute Care Specialists PC (NPI 1306134812, Melrose, MA); Lahey Clinic, Inc (NPI 1063447316, Peabody, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2010
## Record status
- **NPPES last updated:** January 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1679873145) · Data from the CMS NPPES public registry.