DR. ELIZABETH EIDEANN FERRENZ M.D.
NPI 1770724296
Family Medicine in Boston, MA
About Dr. Elizabeth Eideann Ferrenz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ELIZABETH EIDEANN FERRENZ M.D. (NPI 1770724296) is an individual family medicine provider in Boston, Massachusetts, licensed in Massachusetts (249335) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Elizabeth Eideann Ferrenz M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Elizabeth Ferrenz reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 113 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 158 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- 577 clinicians in this Medicare group
East Boston, MA 02128
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: East Boston Neighborhood Health Center Corp
- 456 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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.
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 Elizabeth Ferrenz's NPI number?
The NPI number for Elizabeth Ferrenz is 1770724296. It was assigned to this individual provider in the NPPES registry on March 12, 2009.
Where is Elizabeth Ferrenz located?
Elizabeth Ferrenz practices at 850 Harrison Ave Yawkey Acc 3, Boston, MA 02118. The listed phone number is (617) 414-2080.
What is Elizabeth Ferrenz's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Elizabeth Ferrenz enrolled in Medicare?
Yes. Elizabeth Ferrenz is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Elizabeth Ferrenz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Ferrenz reassigns Medicare benefits to 4 organizations: Boston University Family Medicine, Inc. (Boston, MA), Boston University Obstetrics And Gynecology Foundation, Inc. (Boston, MA), Internal Medical Associates-Ebnhc (East Boston, MA) and Neighborhealth Corporation (East Boston, 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 Elizabeth Ferrenz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elizabeth Ferrenz accept?
Health plans from Anthem Blue Cross and Blue Shield, Taro Health and WellSense Health Plan list Elizabeth Ferrenz 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 Elizabeth Ferrenz was last updated on December 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.
# Dr. Elizabeth Eideann Ferrenz, M.D. · NPI 1770724296
Family Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 12, 2009.
## Identity
- **NPI:** 1770724296 (Entity type: Individual)
- **Enumerated:** March 12, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 249335 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 850 HARRISON AVE, YAWKEY ACC 3, Boston, MA 02118-4001
- **Phone:** (617) 414-2080
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Boston University Family Medicine, Inc. (NPI 1134166390, Boston, MA); Boston University Obstetrics And Gynecology Foundation, Inc. (NPI 1063459568, Boston, MA); Internal Medical Associates-Ebnhc (NPI 1558481879, East Boston, MA); Neighborhealth Corporation (NPI 1316994411, East Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 28, 2012
- **Other identifiers:** Medicare PIN 002392501 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1770724296) · Data from the CMS NPPES public registry.