1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Pediatrics
  6. NPI Profile

DR. SIRI ATMA W GREELEY MD, PHD
NPI 1225292402
Pediatrics - Pediatric Endocrinology in Chicago, IL

Active since July 16, 2008PECOS Enrolled
97.71/100
CMS Quality Rating
5839 S MARYLAND AVE, MC5053, CHICAGO, IL 60637(773) 702-6432(773) 702-0443 Get Directions Write a Review

NPPES record last updated: July 16, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Siri Atma W Greeley Md, Phd NPPES

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

DR. SIRI ATMA W GREELEY MD, PHD (NPI 1225292402) is an individual pediatric endocrinology provider in Chicago, Illinois, licensed in Illinois (036-115928) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225292402
Entity TypeIndividualMale
Primary Taxonomy2080P0205X
Provider Legal NameDR. SIRI ATMA W GREELEYCredential: MD, PHD
Location Address5839 S MARYLAND AVE, MC5053Chicago, IL 60637-1463
Mailing Address5839 S Maryland Ave, Mc5053Chicago, IL 60637-1463 · (773) 702-6432 · Fax (773) 702-0443
Phone(773) 702-6432
Fax(773) 702-0443
Sole ProprietorNo
Enumeration DateJuly 16, 2008
✔ NPI 1225292402 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in IL · 036-115928
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
5839 S MARYLAND AVE, Chicago, IL 60637
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Siri Atma W Greeley Md, Phd 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 Reassignment

Medicare enrollment records show Siri Atma Greeley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

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 60637 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality75.43
Promoting Interoperability100
Improvement Activities40

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.

NICOLE W CARLSON RN, CPNP
Nurse Practitioner (Pediatrics)
5839 S MARYLAND AVE, MC 5044
CHICAGO, IL 60637
Cook County (773) 702-2186
ANDREA YAN-SIN LO
Surgery (Pediatric Surgery)
5839 S MARYLAND AVE, WP C-411 / MC 4062
CHICAGO, IL 60637
Cook County (773) 702-6175
DR. CLAUDINE GERONIMO SINSIOCO M.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
5839 S MARYLAND AVE, MC 3055
CHICAGO, IL 60637
Cook County (773) 702-6487

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 Siri Atma Greeley's NPI number?

The NPI number for Siri Atma Greeley is 1225292402. It was assigned to this individual provider in the NPPES registry on July 16, 2008.

Where is Siri Atma Greeley located?

Siri Atma Greeley practices at 5839 S Maryland Ave Mc5053, Chicago, IL 60637. The listed phone number is (773) 702-6432.

What is Siri Atma Greeley's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Siri Atma Greeley enrolled in Medicare?

Yes. Siri Atma Greeley is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Siri Atma Greeley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Siri Atma Greeley reassigns Medicare benefits to University Of Chicago (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 Siri Atma Greeley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Siri Atma Greeley accept?

Health plans from Oscar Health list Siri Atma Greeley 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 Siri Atma Greeley was last updated on July 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.