NPPES file of Aug 9, 2026

Celia M. O'Brien, M.D.

Obstetrics & Gynecology Physician · Louisville, KY

Celia M. O'Brien, M.D. is an obstetrics & gynecology physician with a practice address in Louisville, Kentucky, and NPI 1518321959, issued on Apr 12, 2016. Check the license (Kentucky 53930, as entered in NPPES) on the Kentucky Board of Medical Licensure; 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
1518321959
Name
Celia M. O'Brien
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
53930 KY
Self-reported in NPPES; status is on the state search
Practice location
4130 Dutchmans LN Ste 400, Louisville, KY 40207
Phone
(502) 897-0697
Enumerated
Apr 12, 2016
Record last updated
Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(502) 897-0658
Medicare enrollment
Enrolled (PECOS I20200827001645); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 2016
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 4130 Dutchmans LN Ste 400

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

  1. Kathryn Bradley, MDObstetrics & Gynecology Physician1821529975
  2. Joslyn Isaac, MDObstetrics & Gynecology Physician1699419788

Verify Celia M. O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 53930
    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 Kentucky license search

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15% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

140 Medicare Part D claims for 49 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Celia O'Brien140
  2. Specialty average165

Most prescribed

  1. Estradiol42 claims
  2. Fluconazole21 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): 100 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. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  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: $452.19

10 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. 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. Celia O'Brien$452.19
  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. Community Medical Associates IncLouisville, KY

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

Celia M. O'Brien among 528 obstetrics & gynecology physician records in Kentucky

Celia M. O'Brien, M.D. is one of 528 obstetrics & gynecology physician records with a practice address in Kentucky. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 85% of them.

  • NPI issued2016 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2016 · median 2004 among the 355 with a school on file
  • Record last updated2020 · 57% 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 Kentucky 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 Kentucky

There are 528 obstetrics & gynecology physician records in Kentucky.

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

  1. Joseph Bilotta, MDLouisville, KY 402071528066388
  2. Herbert Boyd, MDLouisville, KY 402071558369587
  3. Monica Brown, M.D.Louisville, KY 402071063417970
  4. Susan Bunch, M.D.Louisville, KY 402071801891965
  5. Catherine Case, MDLouisville, KY 402071003808130
  6. Jennifer Evans, MDLouisville, KY 402071508864422
  7. Anna Feitelson, MDLouisville, KY 402071285633396
  8. James Graham, M.D.Louisville, KY 402071356346167

Common questions

What is Celia M. O'Brien, M.D.'s NPI number?

Celia M. O'Brien, M.D.'s National Provider Identifier (NPI) is 1518321959, issued on Apr 12, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Celia M. O'Brien, M.D. located?

The NPPES record lists a practice address at 4130 Dutchmans LN Ste 400, Louisville, KY, 40207. Phone: (502) 897-0697. Providers update this record themselves, so call before visiting.

How can I verify Celia M. O'Brien, M.D.'s license?

NPPES lists Kentucky license number 53930, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Celia M. O'Brien, M.D. prescribe under Medicare Part D?

In 2024, Celia M. O'Brien, M.D. had 140 Medicare Part D claims for 49 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Celia M. O'Brien, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.