PHYLLIS C CHANG (MD) – Obstetrics Physician, NPI 1265654735
Obstetrics Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,925 OBSTETRICS/GYNECOLOGY in IL
Provider Addresses for PHYLLIS C CHANG (MD)
430 Pennsylvania Ave
Glen Ellyn, IL 601374464
Phone: (630) 469-9200
Type: Location
1860 PAYSPHERE CIR
CHICAGO, IL 606740018
Phone:
Type: Mailing
430, Pennsylvania Avenue, Glen Ellyn, DuPage County, Illinois, 60137, United States
GLEN ELLYN, IL 601374464
Phone: (630) 469-9200
Type: Location
300 RANDALL RD
GENEVA, IL 601344200
Phone: (630) 653-4240
Fax: (630) 938-9190
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 15 Open Payments records for all available years, with a total value of $327.
Total Amount is formed as General ($327) + Research ($0) + Ownership ($0) = $327.
Last reported payment date: 2024-09-17 • Largest payer in this snapshot: Bayer Healthcare Pharmaceuticals Inc. ($85).
Total Amount
$327
General + Research + Ownership
Payments
15
Total payment records
General Amount
$327
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-17
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2007-07-26
PECOS data refreshed: 2026-05-27
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 |
|---|---|---|---|---|
| I20070726000227 | I | Obstetrics/Gynecology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 24 | 19 | $0 |
| G0101 | Cervical or vaginal cancer screening; pelvic and clinical breast examination | 20 | 20 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 19 | 14 | $0 |
| Q0091 | Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 14 | 14 | $0 |
Insurance plans in this area (ZIP 60137)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | IL | |
| Vascular Surgery | IL | |
| - | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| C H I R O P R A C T I C | IL | |
| Family Practice | IL | |
| Physical Medicine And Rehabilitation | CO | |
| - | IL | |
| Hospitalist, Family Practice | IL |
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