AMY SARAH PASTERNACK M.D.
NPI 1922369412
Internal Medicine in Cambridge, MA
About Amy Sarah Pasternack M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY SARAH PASTERNACK M.D. (NPI 1922369412) is an individual internal medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (261883) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and is a graduate of Harvard Medical School (2012).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Amy Sarah Pasternack M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Amy Pasternack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cambridge, MA 02139
- Reassigned Medicare billing, Massachusetts enrollment
- 719 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MACambridge Health Alliance
Acute Care Hospitals · Cambridge, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02139 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Amy Pasternack's NPI number?
The NPI number for Amy Pasternack is 1922369412. It was assigned to this individual provider in the NPPES registry on May 31, 2012.
Where is Amy Pasternack located?
Amy Pasternack practices at 1493 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 665-3600.
What is Amy Pasternack's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Amy Pasternack enrolled in Medicare?
Yes. Amy Pasternack is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Amy Pasternack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Pasternack reassigns Medicare benefits to Cambridge Public Health Commission (Cambridge, MA). The 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 Amy Pasternack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amy Pasternack accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Amy Pasternack 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.
Is Amy Pasternack affiliated with any hospitals?
According to CMS data, Amy Pasternack is affiliated with Mount Auburn Hospital, Cambridge Health Alliance and Beth Israel Deaconess Medical Center.
When was this NPI record last updated?
The NPPES record for Amy Pasternack was last updated on July 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Amy Sarah Pasternack, M.D. · NPI 1922369412
Internal Medicine physician in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since May 31, 2012.
## Identity
- **NPI:** 1922369412 (Entity type: Individual)
- **Enumerated:** May 31, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 261883 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1493 CAMBRIDGE ST, Cambridge, MA 02139-1047
- **Phone:** (617) 665-3600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Cambridge Public Health Commission (NPI 1487603585, Cambridge, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2012
## Record status
- **NPPES last updated:** July 20, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1922369412) · Data from the CMS NPPES public registry.