KELLEY J. LONDON M.D.
NPI 1164574141
Obstetrics & Gynecology in Lake Bluff, IL
About Kelley J. London M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KELLEY J. LONDON M.D. (NPI 1164574141) is an individual obstetrics & gynecology provider in Lake Bluff, Illinois, licensed in Illinois (036090495) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Kelley J. London M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Kelley London reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60610
- Reassigned Medicare billing, Illinois enrollment
- 34 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 4
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILNorthwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60044 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAKE BLUFF, IL 60044
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 Kelley London's NPI number?
The NPI number for Kelley London is 1164574141. It was assigned to this individual provider in the NPPES registry on January 18, 2007.
Where is Kelley London located?
Kelley London practices at 917 Sherwood Dr Ste 200, Lake Bluff, IL 60044. The listed phone number is (847) 232-3447.
What is Kelley London's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Kelley London enrolled in Medicare?
Yes. Kelley London is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Kelley London's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kelley London reassigns Medicare benefits to Together Women's Health Medical Group Of Illinois, PLLC (Chicago, IL). 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 Kelley London's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kelley London affiliated with any hospitals?
According to CMS data, Kelley London is affiliated with Northwestern Medicine Mchenry and Northwestern Lake Forest Hospital.
When was this NPI record last updated?
The NPPES record for Kelley London was last updated on June 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.