COOK PHYSICIAN SERVICES, P.C.
NPI 1487416376
Internal Medicine in Evanston, IL
About Cook Physician Services, P.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COOK PHYSICIAN SERVICES, P.C. (NPI 1487416376) is a healthcare organization registered as an internal medicine in Evanston, Illinois and active in the NPI registry since January 2024. The organization maintains 2 additional practice locations and lists Christopher Lipsmeyer, Owner/president, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Locations 2
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)
Cook Physician Services, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
87Medicare enrollment records show 87 clinicians reassign Medicare billing to Cook Physician Services, P.C., which bills Medicare for the services they deliver. Of these, 3 practice at this address and 17 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 4
Nearest to this location (20)
See all 87Source: 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 Cook Physician Services, P.C.'s NPI number?
The NPI number for Cook Physician Services, P.C. is 1487416376. It was assigned to this organization in the NPPES registry on January 25, 2024.
Where is Cook Physician Services, P.C. located?
Cook Physician Services, P.C. is located at 355 Ridge Ave, Evanston, IL 60202. The listed phone number is (847) 316-4000.
What is Cook Physician Services, P.C.'s specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Cook Physician Services, P.C. enrolled in Medicare?
Yes. Cook Physician Services, P.C. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Cook Physician Services, P.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 87 clinicians in 4 Medicare specialties reassign their Medicare billing to Cook Physician Services, P.C.. 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. The largest specialties are Hospitalist (38), Internal Medicine (32) and Family Practice (11). Of these, 3 practice at this address and 17 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 Cook Physician Services, P.C. was last updated on January 25, 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.
# Cook Physician Services, P.c. · NPI 1487416376
Internal Medicine organization in Evanston, Illinois. Organization record, active in the CMS NPPES registry since January 25, 2024.
## Identity
- **NPI:** 1487416376 (Entity type: Organization)
- **Enumerated:** January 25, 2024
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Christopher Lipsmeyer, OWNER/PRESIDENT
## Practice location
- **Address:** 355 RIDGE AVE, Evanston, IL 60202-3328
- **Phone:** (847) 316-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 87 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Hospitalist (38), Internal Medicine (32), Family Practice (11); 3 practice at this address and 17 within 10 miles; [full list](https://npiprofile.com/npi/1487416376/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 25, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1487416376) · Data from the CMS NPPES public registry.