JENNIFER J WILLIAMS CNM
NPI 1245448166
Advanced Practice Midwife in Cambridge, MA
About Jennifer J Williams Cnm NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JENNIFER J WILLIAMS CNM (NPI 1245448166) is an individual advanced practice midwife in Cambridge, Massachusetts, licensed in Massachusetts (RN281842) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jennifer J Williams Cnm is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02138 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.
CAMBRIDGE, MA 02138
CAMBRIDGE, MA 02138
CAMBRIDGE, MA 02138
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 Jennifer Williams's NPI number?
The NPI number for Jennifer Williams is 1245448166. It was assigned to this individual provider in the NPPES registry on May 21, 2007.
Where is Jennifer Williams located?
Jennifer Williams practices at 330 Mount Auburn St, Cambridge, MA 02138. The listed phone number is (617) 499-5151.
What is Jennifer Williams's specialty?
The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.
Is Jennifer Williams enrolled in Medicare?
Yes. Jennifer Williams is registered in the Medicare PECOS enrollment system.
What insurance does Jennifer Williams accept?
Health plans from Anthem Blue Cross and Blue Shield list Jennifer Williams 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.
When was this NPI record last updated?
The NPPES record for Jennifer Williams was last updated on January 22, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
