Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Susan Margaret Ludwig, NP

Individual provider Family Nurse Practitioner · NPI 1679873145

Mrs. Susan Margaret Ludwig, NP is a Nurse Practitioner in Medford, Massachusetts. Graduated from University of Massachusetts Medical School in 2010, 16 years ago. Practices with Massachusetts Acute Care Specialists PC, a 46-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
16
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2010
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

170 Governors Ave
Medford, MA 02155-1643
Phone: (781) 979-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN251531 (MA)
Registered Nurse Taxonomy 163W00000X · Licence 251531 (MA)

Record details

NPI number1679873145
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedOctober 29, 2010
Last updated in NPPESJanuary 8, 2026
Certification dateJanuary 8, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2010 (16 years in practice)
Group practice Massachusetts Acute Care Specialists Pc — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients42
Services billed 134 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Melrosewakefield Healthcare Hospital · Melrose, MA

Colleagues at Massachusetts Acute Care Specialists PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 46 clinicians in the practice; 12 are shown here.

Other providers in Medford