Catherine Smith O'Neal, MD
Infectious Disease Physician · Baton Rouge, LA
Catherine Smith O'Neal, MD is an infectious disease physician with a practice address in Baton Rouge, Louisiana, and NPI 1689715013, issued on Feb 9, 2007. Check the license (Louisiana 026433, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Catherine Smith O'Neal
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 026433 LA
Self-reported in NPPES; status is on the state search - Practice location
- 5247 Didesse Dr, Baton Rouge, LA 70808
- Phone
- (225) 374-0082
- Enumerated
- Feb 9, 2007
- Record last updated
- Apr 18, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (225) 765-9150
- Medicaid ID
- 1390259 LA
- Medicare enrollment
- Enrolled (PECOS I20090427000571); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 128 in Louisiana → Look up another NPI →
Also registered at 5247 Didesse Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Acosta, MDNeurology Physician1710976915
- Scott Anderson, MDInfectious Disease Physician1114285293
- Lindsay Barleycorn, LDNRegistered Dietitian1558877050
- Yuvraj Bhagat, MDNeurology Physician1225654270
- Yi Chan, MS, RDN, LDNRegistered Dietitian1841015922
Verify Catherine Smith O'Neal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 026433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average infectious disease physician in 2024
317 Medicare Part D claims for 40 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Azithromycin40 claims
- Arikayce33 claims
- Ethambutol Hcl31 claims
- Rifampin17 claims
- Doxycycline Hyclate15 claims
- Doxycycline Monohydrate15 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.
Industry payments in 2024: $18.75
1 payment: food and beverage; the largest payer was Ucb, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Our Lady OF The Lake Physician Group LLCBaton Rouge, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Smith O'Neal among 128 infectious disease physician records in Louisiana
Catherine Smith O'Neal, MD is one of 128 infectious disease physician records with a practice address in Louisiana. 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 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 45% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2003 · median 2005 among the 85 with a school on file
- Record last updated2017 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Louisiana
There are 128 infectious disease physician records in Louisiana.
All 128 in Louisiana → Every provider in Baton Rouge → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Scott Anderson, MDBaton Rouge, LA 708081114285293
- Madeleine Heck, MDBaton Rouge, LA 708081407877426
- Katherine Lavie, MDBaton Rouge, LA 708081073812871
- Maria Reyes Angeles, M.DBaton Rouge, LA 708081194012609
- Tatiana Saavedra, MDBaton Rouge, LA 708081023209053
- Katie Taylor, M.D.Baton Rouge, LA 708081235525643
- Shobha Vootukuri, MDBaton Rouge, LA 708081215263009
- Candace Warner, M.D.Baton Rouge, LA 708081710918180
Common questions
What is Catherine Smith O'Neal, MD's NPI number?
Catherine Smith O'Neal, MD's National Provider Identifier (NPI) is 1689715013, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Smith O'Neal, MD located?
The NPPES record lists a practice address at 5247 Didesse Dr, Baton Rouge, LA, 70808. Phone: (225) 374-0082. Providers update this record themselves, so call before visiting.
How can I verify Catherine Smith O'Neal, MD's license?
NPPES lists Louisiana license number 026433, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Catherine Smith O'Neal, MD prescribe under Medicare Part D?
In 2024, Catherine Smith O'Neal, MD had 317 Medicare Part D claims for 40 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
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.