Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Michelle Nancy Knowles, ANP-BC

Individual provider Adult Health Nurse Practitioner · NPI 1659416139

Mrs. Michelle Nancy Knowles, ANP-BC is a Nurse Practitioner in Waltham, Massachusetts. Graduated from University of Massachusetts Medical School in 2004, 22 years ago. Practices with The General Hospital Corporation, a 1,276-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
22
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2007
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Practice location Address checks out

52 2nd Ave Ste 1110
Waltham, MA 02451-1127 Not confirmed with CMS for 10 years — call before visiting
Phone: (781) 487-6100
Fax: (781) 487-6202
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 228235 (MA)

Record details

NPI number1659416139
Entity typeIndividual (Type 1)
GenderFemale
Credentials ANP-BC
Sole proprietorNo
NPI enumeratedFebruary 21, 2007
Last updated in NPPESSeptember 26, 2016

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2004 (22 years in practice)
Group practice The General Hospital Corporation — 1276 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 patients20
Services billed 23 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at The General Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1276 clinicians in the practice; 12 are shown here.

Other providers in Waltham