DR. BRIAN K LOCKER (MD) – Obstetrics & Gynecology Physician, NPI 1679540868
Obstetrics & Gynecology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,923 OBSTETRICS/GYNECOLOGY in IL
Provider Addresses for DR. BRIAN K LOCKER (MD)
Lakeside Drive, Bannockburn, Illinois, United States
BANNOCKBURN, IL 600151271
Phone: (847) 562-1410
Fax: (847) 562-0830
Type: Mailing
9301 GOLF RD STE 101
DES PLAINES, IL 600161600
Phone: (847) 318-9350
Fax: (847) 318-2906
Type: Location
West Dempster Street, Park Ridge, Cook County, Illinois, 60068, United States
SUITE 145
PARK RIDGE, IL 60068
Phone: (847) 318-9350
Fax: (847) 318-2906
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 37 Open Payments records for all available years, with a total value of $808.
Total Amount is formed as General ($808) + Research ($0) + Ownership ($0) = $808.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: Astellas Pharma US Inc ($166).
Total Amount
$808
General + Research + Ownership
Payments
37
Total payment records
General Amount
$808
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
2
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Astellas Pharma US Inc | $166 |
| PFIZER INC. | $98 |
| Sumitomo Pharma America, Inc. | $83 |
| MILLICENT US INC | $80 |
| Exeltis, USA Inc. | $67 |
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: 2005-04-15
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 |
|---|---|---|---|---|
| I20050415000381 | 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 | 29 | 21 | $0 |
| G0101 | Cervical or vaginal cancer screening; pelvic and clinical breast examination | 15 | 15 | $0 |
Insurance plans in this area (ZIP 60015)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| - | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| - | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL |
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