RUTH CHRISTINA KAKUMANU D.O.
NPI 1710418223
Hospitalist in Evanston, IL

Q: What is Ruth Kakumanu's NPI number?

The NPI number for Ruth Kakumanu is 1710418223. It was assigned to this individual provider in the NPPES registry on March 26, 2017.

Q: What is Ruth Kakumanu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Ruth Kakumanu was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.

Active since March 26, 2017PECOS Enrolled

2650 RIDGE AVE, EVANSTON, IL 60201(847) 570-1027(847) 733-5108 Get Directions Write a Review

NPPES record last updated: September 19, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 19, 2025, May 20, 2022, May 11, 2022 and 3 more (6 updates tracked since 2017).

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About Ruth Christina Kakumanu D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RUTH CHRISTINA KAKUMANU D.O. (NPI 1710418223) is an individual hospitalist provider in Evanston, Illinois, licensed in Illinois (036150896) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1710418223

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameRUTH CHRISTINA KAKUMANUCredential: D.O.

Location Address2650 RIDGE AVEEvanston, IL 60201-1700

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(847) 570-1027

Fax(847) 733-5108

Sole ProprietorNo

Enumeration DateMarch 26, 2017

Last NPPES UpdateSeptember 19, 20256 updates tracked since enumeration

NPPES CertifiedSeptember 19, 2025

✔ NPI 1710418223 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in IL · 036150896

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedPediatricsTaxonomy 208000000X · License 036.150896 (IL)

2650 RIDGE AVE, Evanston, IL 60201

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Secondary Practice Locations 2

Location 11740 W Taylor StChicago, IL 60612-7232 · Phone (866) 600-2273

Location 21425 N Randall RdElgin, IL 60123-2300 · Phone (224) 783-8105

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ruth Christina Kakumanu D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Ruth Kakumanu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Endeavor Health Medical Group

Same address

Anesthesiology

2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201

Reassigned Medicare billing, Illinois enrollment
4,841 clinicians in this Medicare group

NPI 1265695944 (847) 570-2760

Lutheran General Hospital

8.6 mi

Cardiovascular Disease

1775 DEMPSTER ST
Park Ridge, IL 60068

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Advocate Health And Hospitals Corporation
4,870 clinicians in this Medicare group

NPI 1801809306 (847) 723-2210

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 60201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. THOMAS LEE CIBULL M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201

Cook County (847) 570-2040

LAUREN ANDERSON MD

Hospitalist

2650 RIDGE AVE
EVANSTON, IL 60201

Cook County (847) 570-1027

DR. DANIEL K. WEST MD

Radiology (Diagnostic Radiology)

2650 RIDGE AVE, DEPARTMENT OF RADIOLOGY, G507
EVANSTON, IL 60201

Cook County (847) 570-2475

JOEL BERNSTEIN M.D.

Radiology (Diagnostic Radiology)

2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201

Cook County (847) 570-1206

MATTHEW R. SHERWOOD MD

Internal Medicine

2650 RIDGE AVE, DIVISION OF INTERNAL MEDICINE RM 4324
EVANSTON, IL 60201

Cook County (847) 570-1010

MICHAEL T. GILLAM M.D.

Emergency Medicine

2650 RIDGE AVE, EMERGENCY MEDICINE RM G909
EVANSTON, IL 60201

Cook County (847) 570-2114

MARLENE ANGELICO CNP

Nurse Practitioner (Acute Care)

2650 RIDGE AVE, EMERGENCY MEDICINE, RM G903C
EVANSTON, IL 60201

Cook County (847) 570-1355

MINA KEROLOS MD

Hospitalist

2650 RIDGE AVE
EVANSTON, IL 60201

Cook County (847) 570-1010

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 Ruth Kakumanu's NPI number?

The NPI number for Ruth Kakumanu is 1710418223. It was assigned to this individual provider in the NPPES registry on March 26, 2017.

Where is Ruth Kakumanu located?

Ruth Kakumanu practices at 2650 Ridge Ave, Evanston, IL 60201. The listed phone number is (847) 570-1027.

What is Ruth Kakumanu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Ruth Kakumanu enrolled in Medicare?

Yes. Ruth Kakumanu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ruth Kakumanu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Kakumanu reassigns Medicare benefits to 2 organizations: Endeavor Health Medical Group (Evanston, IL) and Lutheran General Hospital (Park Ridge, 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 Ruth Kakumanu'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 Ruth Kakumanu was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.