John M. O'Brien, MD
Maternal & Fetal Medicine Physician · Lexington, KY
John M. O'Brien, MD is a maternal & fetal medicine physician with a practice address in Lexington, Kentucky, and NPI 1528078748, issued on Aug 9, 2006. Check the license (Kentucky 30453, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John M. O'Brien
- Credential
- MD
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- 30453 KY
Self-reported in NPPES; status is on the state search - Practice location
- 800 Rose Street, Lexington, KY 40536
- Phone
- (859) 257-9000
- Enumerated
- Aug 9, 2006
- Record last updated
- May 11, 2022
- Medicaid ID
- 64304538 KY
- Medicare enrollment
- Enrolled (PECOS I20090820000381); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 42 in Kentucky → Look up another NPI →
Also registered at 800 Rose Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Adams, PHARMDPharmacist1134913569
- Paul Bachner, MDAnatomic Pathology & Clinical Pathology Physician1033174230
- Rashmi BharadwajStudent in an Organized Health Care Education/Training Program1134923311
- Allison Brown, MDStudent in an Organized Health Care Education/Training Program1386223790
- Leigh Ann Callahan, MDCritical Care Medicine (Internal Medicine) Physician1396855037
- Craig CarterEmergency Medicine Physician1275573818
Verify John M. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 30453Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average maternal & fetal medicine physician in 2024
18 Medicare Part D claims, against an average of 41 among the 353 providers of this specialty who prescribed in Part D.
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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kentucky Medical Services Foundation, IncLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John M. O'Brien among 42 maternal & fetal medicine physician records in Kentucky
John M. O'Brien, MD is one of 42 maternal & fetal medicine physician records with a practice address in Kentucky. 88% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 50% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1988 · median 2003 among the 32 with a school on file
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in Kentucky
There are 42 maternal & fetal medicine physician records in Kentucky.
All 42 in Kentucky → Every provider in Lexington → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Ashley Boerrigter, MDLexington, KY 405361386149649
- Niraj Chavan, MD, MPHLexington, KY 405361700124427
- Wendy Hansen, MDLexington, KY 405361427094200
- Alexander Harrison, MDLexington, KY 405361639705635
- Brittany Hood, MDLexington, KY 405361891371670
- Suzanne Lubarsky, M.D.Lexington, KY 405361134239338
- Frank MillerLexington, KY 405361790720761
- Karen Playforth, MDLexington, KY 405361285619510
Common questions
What is John M. O'Brien, MD's NPI number?
John M. O'Brien, MD's National Provider Identifier (NPI) is 1528078748, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John M. O'Brien, MD located?
The NPPES record lists a practice address at 800 Rose Street, Lexington, KY, 40536. Phone: (859) 257-9000. Providers update this record themselves, so call before visiting.
How can I verify John M. O'Brien, MD's license?
NPPES lists Kentucky license number 30453, 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 John M. O'Brien, MD prescribe under Medicare Part D?
In 2024, John M. O'Brien, MD had 18 Medicare Part D claims; the average among maternal & fetal medicine physician prescribers was 41. Part D covers Medicare prescriptions only.
What is John M. O'Brien, MD'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.