DR. ROBERT J HARTMAN M.D.
NPI 1346336310
Obstetrics & Gynecology in Lake Forest, IL
About Dr. Robert J Hartman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT J HARTMAN M.D. (NPI 1346336310) is an individual obstetrics & gynecology provider in Lake Forest, Illinois, licensed in Illinois (03651860) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Dr. Robert J Hartman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Robert Hartman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Vernon Hills, IL 60061
- Reassigned Medicare billing, Illinois enrollment
- 151 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 60045 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.
LAKE FOREST, IL 60045
LAKE FOREST, IL 60045
LAKE FOREST, IL 60045
LAKE FOREST, IL 60045
LAKE FOREST, IL 60045
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 Robert Hartman's NPI number?
The NPI number for Robert Hartman is 1346336310. It was assigned to this individual provider in the NPPES registry on October 5, 2006.
Where is Robert Hartman located?
Robert Hartman practices at 660 N Westmoreland Rd Suite 302, Lake Forest, IL 60045. The listed phone number is (847) 615-2229.
What is Robert Hartman's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Robert Hartman enrolled in Medicare?
Yes. Robert Hartman is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Robert Hartman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Hartman reassigns Medicare benefits to 2 organizations: County Of Lake (Vernon Hills, IL) and Northwestern Medical Faculty Foundation (Carol Stream, IL). 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 Robert Hartman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Robert Hartman was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.