SARAH A AKER MD
NPI 1184005597
Pediatrics in Boston, MA
About Sarah A Aker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARAH A AKER MD (NPI 1184005597) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (273881) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Sarah A Aker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Sarah Aker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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 02115 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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Sarah Aker's NPI number?
The NPI number for Sarah Aker is 1184005597. It was assigned to this individual provider in the NPPES registry on June 11, 2015.
Where is Sarah Aker located?
Sarah Aker practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Sarah Aker's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Sarah Aker enrolled in Medicare?
Yes. Sarah Aker is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Sarah Aker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Aker reassigns Medicare benefits to Children's Hospital Pediatric Associates, Inc (Boston, 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 Sarah Aker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Aker accept?
Health plans from Taro Health list Sarah Aker 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 Sarah Aker was last updated on July 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Sarah A Aker, MD · NPI 1184005597
Pediatrics physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 11, 2015.
## Identity
- **NPI:** 1184005597 (Entity type: Individual)
- **Enumerated:** June 11, 2015
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 273881 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## 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:** Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1184005597) · Data from the CMS NPPES public registry.