Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Aimee Elizabeth Foster Keller, MS, FNP-BC

Individual provider Registered Nurse · NPI 1447804216

Aimee Elizabeth Foster Keller, MS, FNP-BC is a Nurse Practitioner in Waltham, Massachusetts. Graduated from University of Massachusetts Medical School in 2019, 7 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
7
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2019
Specialties on file
3
What do these letters mean?
MS — Master of Science
A graduate science degree.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

52 Second Ave Ste 520
Waltham, MA 02451-1142
Phone: (781) 487-6000
Fax: (781) 487-2978
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence RN2274206 (MA)
Registered Nurse Taxonomy 163W00000X · Licence RN2274206 (MA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence RN2274206 (MA)

Record details

NPI number1447804216
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , FNP-BC
Sole proprietorNo
NPI enumeratedJuly 30, 2019
Last updated in NPPESJune 3, 2024
Certification dateJune 3, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2019 (7 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients251
Services billed 419 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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 Massachusetts General Physicians Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3484 clinicians in the practice; 12 are shown here.

Other providers in Waltham