MR. TITUS CHANG (M.D.) – Allergy & Immunology Physician, NPI 1316988850
Allergy & Immunology Physician
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NPPES metrics only — not quality of care.
222 ALLERGY/IMMUNOLOGY in IL
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Provider Addresses for MR. TITUS CHANG (M.D.)
2357, Sequoia Drive, Aurora, Kane County, Illinois, 60506, United States
AURORA, IL 605066222
Phone: (630) 859-6800
Type: Mailing
2285, Sequoia Drive, Aurora, Kane County, Illinois, 60506, United States
AURORA, IL 605066209
Phone: (630) 859-6700
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-05-04
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040504001022 | I | Allergy/Immunology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 856 | 24 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 159 | 117 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 94 | 69 | $0 |
| 94010 | Test to measure expiratory airflow and volume | 88 | 73 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 66 | 54 | $0 |
Insurance plans in this area (ZIP 60506)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ALLERGY/IMMUNOLOGY | IL | 95004 | Injection of allergenic extracts into skin, accessed through the skin | 539 | 14 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| A N E S T H E S I O L O G Y | IL | |
| Family Practice | WI | |
| - | MN | |
| - | IL | |
| - | IL | |
| Rheumatology, Internal Medicine | IL | |
| - | IL | |
| P S Y C H I A T R Y | IL | |
| Physician Assistant | IL |
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