NPPES file of Aug 9, 2026

Brian K. Locker, MD

Obstetrics & Gynecology Physician · Des Plaines, IL

Brian K. Locker, MD is an obstetrics & gynecology physician with a practice address in Des Plaines, Illinois, and NPI 1679540868, issued on Mar 7, 2006. Check the license (Illinois 036089903, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679540868
Name
Brian K. Locker
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036089903 IL
Self-reported in NPPES; status is on the state search
Practice location
9301 Golf RD Ste 101, Des Plaines, IL 60016
Phone
(847) 318-9350
Enumerated
Mar 7, 2006
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(847) 318-2906
Medicare enrollment
Enrolled (PECOS I20050415000381); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1987
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9301 Golf RD Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Natalia Feldman, M.D.Obstetrics & Gynecology Physician1104454545
  2. Randee Lopata, MDObstetrics & Gynecology Physician1285696518
  3. Therese Oconnor, MDObstetrics & Gynecology Physician1114995800
  4. Jodi Sklansky, D.O.Obstetrics & Gynecology Physician1548553399
  5. Julie Snow, M.D.Obstetrics & Gynecology Physician1154348720
  6. Beth Sum, MDObstetrics & Gynecology Physician1780643734

Verify Brian K. Locker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036089903
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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45% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

91 Medicare Part D claims for 29 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Brian Locker91
  2. Specialty average165

Most prescribed

  1. Estradiol17 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 75.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.7
  2. Costout of 100 · 30%28.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $352.43

16 payments; by number, the most common kind was food and beverage; the largest payer was Millicent US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Locker$352.43
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Midwest Center For Women's Healthcare, LtdDes Plaines, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian K. Locker among 2,062 obstetrics & gynecology physician records in Illinois

Brian K. Locker, MD is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1987 · median 2006 among the 1,168 with a school on file
  • Record last updated2021 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Illinois

There are 2,062 obstetrics & gynecology physician records in Illinois.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Harbans Deol, MDDes Plaines, IL 600161851391387
  2. Vernee Edwards, MDDes Plaines, IL 600161376807867
  3. Natalia Feldman, M.D.Des Plaines, IL 600161104454545
  4. Lauren Hensley, MDDes Plaines, IL 600161306282561
  5. Randee Lopata, MDDes Plaines, IL 600161285696518
  6. Therese Oconnor, MDDes Plaines, IL 600161114995800
  7. Hasumati Patel, M.D.Des Plaines, IL 600161831186105
  8. Susan Rim, MDDes Plaines, IL 600161487810859

Common questions

What is Brian K. Locker, MD's NPI number?

Brian K. Locker, MD's National Provider Identifier (NPI) is 1679540868, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian K. Locker, MD located?

The NPPES record lists a practice address at 9301 Golf RD Ste 101, Des Plaines, IL, 60016. Phone: (847) 318-9350. Providers update this record themselves, so call before visiting.

How can I verify Brian K. Locker, MD's license?

NPPES lists Illinois license number 036089903, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian K. Locker, MD prescribe under Medicare Part D?

In 2024, Brian K. Locker, MD had 91 Medicare Part D claims for 29 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Brian K. Locker, MD's MIPS final score?

The 2023 MIPS final score is 75.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.