DR. WILLIAM MICHAEL JR. BRENNAN (D.D.S.) – Dentist, NPI 1265501175
Dentist
Main info
Profile Insights
NPPES metrics only — not quality of care.
Loading map...
Provider Addresses for DR. WILLIAM MICHAEL JR. BRENNAN (D.D.S.)
1516-1518, South Wabash Avenue, South Loop, Near South Side, South Loop, Chicago, Cook County, Illinois, 60605, United States
#602
CHICAGO, IL 606052903
Phone: (312) 765-0097
Type: Mailing
5133, Washington Street, Downers Grove, DuPage County, Illinois, 60515, United States
SUITE 4
DOWNERS GROVE, IL 605154788
Phone: (630) 969-4645
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $95.
Total Amount is formed as General ($95) + Research ($0) + Ownership ($0) = $95.
Last reported payment date: 2024-11-12 • Largest payer in this snapshot: BioHorizons Implant Systems Inc. ($95).
Total Amount
$95
General + Research + Ownership
Payments
5
Total payment records
General Amount
$95
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| BioHorizons Implant Systems Inc. | $95 |
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: 2015-06-05
PECOS data refreshed: 2026-05-27
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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60605)
Loading plans...
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.