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MUTHIAH RAMU ANNAMALAI DO
NPI 1275039679
Pediatrics in Chicago, IL

Active since April 04, 2018PECOS Enrolled
225 E CHICAGO AVE # 51, CHICAGO, IL 60611(312) 227-4455 Get Directions Write a Review

NPPES record last updated: August 8, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 8, 2024, Jun 20, 2024, Jun 28, 2021 (3 updates tracked since 2021).

About Muthiah Ramu Annamalai Do NPPES

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

MUTHIAH RAMU ANNAMALAI DO (NPI 1275039679) is an individual pediatrics provider in Chicago, Illinois, licensed in Illinois (036.171034) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1275039679
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameMUTHIAH RAMU ANNAMALAICredential: DO
Location Address225 E CHICAGO AVE # 51Chicago, IL 60611-2991
Mailing Address225 E Chicago Ave # 51Chicago, IL 60611-2991 · (312) 227-4455
Phone(312) 227-4455
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 4, 2018
Last NPPES UpdateAugust 8, 20243 updates tracked since enumeration
NPPES CertifiedAugust 8, 2024
✔ NPI 1275039679 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 036.171034
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
225 E CHICAGO AVE # 51, Chicago, IL 60611
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Superior HealthPlan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Muthiah Ramu Annamalai Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3971072497
PECOS Enrollment IDI20260514000950
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 Reassignment

Medicare enrollment records show Muthiah Annamalai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Shriners Hospitals For Children
665 mi
Orthopaedic Surgery
3551 N BROAD ST
Philadelphia, PA 19140
  • Reassigned Medicare billing, Texas enrollment
  • 112 clinicians in this Medicare group
NPI 1275271462 (813) 518-7679

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 60611 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
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 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANDREA CATALINA PARDO M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550
DR. RACHEL PAULEY MD
Psychiatry & Neurology (Epilepsy)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3540
NANCY LYNN KUNTZ M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550
CATHERINE HANNEKEN
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550
DR. SUJA ANN JOSEPH MD
Psychiatry & Neurology (Neurology)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550
DAVID G RITACCO MD PHD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550
LAURA ENGEL VERNON MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550
DARLENE LEUNG NURSE PRACTITIONER
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE # 51
CHICAGO, IL 60611
Cook County (312) 227-3550

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 Muthiah Annamalai's NPI number?

The NPI number for Muthiah Annamalai is 1275039679. It was assigned to this individual provider in the NPPES registry on April 4, 2018.

Where is Muthiah Annamalai located?

Muthiah Annamalai practices at 225 E Chicago Ave # 51, Chicago, IL 60611. The listed phone number is (312) 227-4455.

What is Muthiah Annamalai's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Muthiah Annamalai enrolled in Medicare?

Yes. Muthiah Annamalai is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Muthiah Annamalai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Muthiah Annamalai reassigns Medicare benefits to Shriners Hospitals For Children (Philadelphia, PA). 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 Muthiah Annamalai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Muthiah Annamalai accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Ambetter from Superior HealthPlan and Ambetter of Alabama and 2 other insurers list Muthiah Annamalai as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Muthiah Annamalai was last updated on August 8, 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.