DR ABRAM LONDON'S OFFICE
NPI 1518202852
Internal Medicine in Chestnut Hill, MA
About Dr Abram London's Office NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR ABRAM LONDON'S OFFICE (NPI 1518202852) is a healthcare organization registered as an internal medicine in Chestnut Hill, Massachusetts and active in the NPI registry since November 2012. The organization lists Abram London, Md, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr Abram London's Office is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Dr Abram London's Office, which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 London Medical Group, LLC's NPI number?
The NPI number for London Medical Group, LLC is 1518202852. It was assigned to this organization in the NPPES registry on November 27, 2012. The provider is also known as Dr Abram London's Office.
Where is London Medical Group, LLC located?
London Medical Group, LLC is located at 25 Boylston St Ste # 315, Chestnut Hill, MA 02467. The listed phone number is (617) 277-8770.
What is London Medical Group, LLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is London Medical Group, LLC enrolled in Medicare?
Yes. London Medical Group, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through London Medical Group, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to London Medical Group, LLC, in Internal Medicine and Nurse Practitioner. A 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 the clinician's services. Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for London Medical Group, LLC was last updated on November 27, 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 Abram London's Office · NPI 1518202852
Internal Medicine organization in Chestnut Hill, Massachusetts. Organization record, active in the CMS NPPES registry since November 27, 2012.
## Identity
- **NPI:** 1518202852 (Entity type: Organization)
- **Enumerated:** November 27, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Legal business name:** London Medical Group, Llc
- **Organization subpart:** No
- **Authorized official:** Abram London, MD
## Practice location
- **Address:** 25 BOYLSTON ST, STE # 315, Chestnut Hill, MA 02467-1715
- **Phone:** (617) 277-8770
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (1), Nurse Practitioner (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 27, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1518202852) · Data from the CMS NPPES public registry.