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DR. DENIS IAN ALTMAN MD
NPI 1043252521
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in Chicago, IL

Active since June 11, 2006PECOS Enrolled
225 E CHICAGO AVE, CHICAGO, IL 60611(312) 227-3550 Get Directions Write a Review

NPPES record last updated: January 8, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Denis Ian Altman Md NPPES

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

DR. DENIS IAN ALTMAN MD (NPI 1043252521) is an individual neurology with special qualifications in child neurology provider in Chicago, Illinois, licensed in Illinois (036.149863) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Saint Louis, and is a graduate of Other (1975).

NPPES Registry Identity

NPI1043252521
Entity TypeIndividualMale
Primary Taxonomy2084N0402X
Provider Legal NameDR. DENIS IAN ALTMANCredential: MD
Location Address225 E CHICAGO AVEChicago, IL 60611-2991
Mailing Address621 S New Ballas Rd, Ste 5009bSaint Louis, MO 63141-8232 · (314) 251-5866 · Fax (314) 251-5867
Phone(312) 227-3550
Sole ProprietorNo
Medical School CMSOtherGraduated 1975
Enumeration DateJune 11, 2006
Last NPPES UpdateJanuary 8, 2020
✔ NPI 1043252521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Neurology with Special Qualifications in Child NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0402X
Licenses✔ Licensed in IL · 036.149863✔ Licensed in MO · R8D55
Definition
A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence.
225 E CHICAGO AVE, Chicago, IL 60611
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Secondary Practice Location 1

Location 1621 S New Ballas Rd, ste 5009BSaint Louis, MO 63141-8232 · Phone (314) 251-5866 · Fax (314) 251-5867

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Denis Ian Altman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1759387616
PECOS Enrollment IDI20260702002637
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 Denis Altman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lurie Children's Medical Group Inc
Same address
Pediatrics
225 E CHICAGO AVE
Chicago, IL 60611
  • Reassigned Medicare billing, Illinois enrollment
  • 826 clinicians in this Medicare group
NPI 1518064716 (312) 227-6412

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
$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.

BESSEY ELIZABETH JOSE GEEVARGHESE DO
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (630) 933-6631
CHRISTINA SOOJIN KIM M.D.
Pediatrics
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (443) 928-7458
JESSICA LAUREN OFFENBACH APN
Nurse Practitioner (Pediatrics)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
MS. JENNY KO LEE APN
Nurse Practitioner (Neonatal)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (847) 962-6268
ERIN COHEN MD
Pediatrics (Hospice and Palliative Medicine)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
DR. JOSEPH HART COLLINS MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-3550
ALEXIS LYN HARMON
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000
SHANNON JULIA CONWAY MD
Student in an Organized Health Care Education/Training Program
225 E CHICAGO AVE
CHICAGO, IL 60611
Cook County (312) 227-4000

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 Denis Altman's NPI number?

The NPI number for Denis Altman is 1043252521. It was assigned to this individual provider in the NPPES registry on June 11, 2006.

Where is Denis Altman located?

Denis Altman practices at 225 E Chicago Ave, Chicago, IL 60611. The listed phone number is (312) 227-3550.

What is Denis Altman's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.

Is Denis Altman enrolled in Medicare?

Yes. Denis Altman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Denis Altman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denis Altman reassigns Medicare benefits to Lurie Children's Medical Group Inc (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 Denis Altman'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 Denis Altman was last updated on January 8, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.