TERESSA ALEXANDER (M.D.) – Obstetrics & Gynecology Physician, NPI 1851387328
Obstetrics & Gynecology Physician
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Profile Insights
NPPES metrics only — not quality of care.
1,923 OBSTETRICS/GYNECOLOGY in IL
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Provider Addresses for TERESSA ALEXANDER (M.D.)
1256, Waterford Drive, Aurora, Aurora Township, Kane County, Illinois, 60504, United States
SUITE 230
AURORA, IL 60504
Phone: (630) 499-2404
Fax: (630) 499-2399
Type: Mailing
Ogden Avenue, Aurora, Aurora Township, Kane County, Illinois, 60503, United States
SUITE 201
AURORA, IL 605047222
Phone: (630) 978-6886
Fax: (630) 978-6806
Type: Location
4201 WINFIELD RD FL 3
WARRENVILLE, IL 605554025
Phone:
Type: Mailing
133 E BRUSH HILL RD STE 308
ELMHURST, IL 601265662
Phone: (331) 221-9006
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 31 Open Payments records for all available years, with a total value of $694.
Total Amount is formed as General ($694) + Research ($0) + Ownership ($0) = $694.
Last reported payment date: 2024-11-08 • Largest payer in this snapshot: SHIELD THERAPEUTICS INC ($281).
Total Amount
$694
General + Research + Ownership
Payments
31
Total payment records
General Amount
$694
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-08
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: 2004-10-04
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 |
|---|---|---|---|---|
| I20041004000783 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 22 | 17 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 60504)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| E N D O C R I N O L O G Y | IL | |
| N E U R O L O G Y | IL | |
| Hospitalist, Internal Medicine | IL | |
| O P H T H A L M O L O G Y | IL | |
| - | IL | |
| E N D O C R I N O L O G Y | IL | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology | IL | |
| Clinical Social Worker | IL | |
| Certified Nurse Midwife (Cnm) | IL |
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