John S. Ziegler, MD
Obstetrics & Gynecology Physician · Bastrop, LA
John S. Ziegler, MD is an obstetrics & gynecology physician with a practice address in Bastrop, Louisiana, and NPI 1669465316, issued on Aug 29, 2005. Check the license (Louisiana 012780, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John S. Ziegler
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 012780 LA
MD012780 LA
Self-reported in NPPES; status is on the state search - Practice location
- 510S Washington St, Bastrop, LA 71220
- Phone
- (318) 281-8596
- Enumerated
- Aug 29, 2005
- Record last updated
- Aug 28, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (318) 281-8099
- Medicaid ID
- 1180955 AL
- Medicare enrollment
- Enrolled (PECOS I20050224000944); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1974
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 659 in Louisiana → Look up another NPI →
Verify John S. Ziegler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 012780Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
625 Medicare Part D claims for 91 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Estradiol151 claims
- Clonidine Hcl37 claims
- Levothyroxine Sodium28 claims
- Pantoprazole Sodium22 claims
- Oxybutynin Chloride19 claims
- Clobetasol Propionate18 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.
Bills Medicare through one group practice
- Sterlington Critical Access Hospital LLCBastrop, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John S. Ziegler among 659 obstetrics & gynecology physician records in Louisiana
John S. Ziegler, MD is one of 659 obstetrics & gynecology physician records with a practice address in Louisiana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1974 · median 2004 among the 436 with a school on file
- Record last updated2015 · 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 obstetrics & gynecology physician records list a practice address in Bastrop
They are 3 of the 323 NPPES records with a practice address in Bastrop, and 659 obstetrics & gynecology physician records in Louisiana.
All 659 in Louisiana → Every provider in Bastrop → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Janos Guoth, M.D.Bastrop, LA 712201285668467
- Curtis Sanders, M.D.Bastrop, LA 712201144232430
- Rafael Armstrong, MDMonroe, LA 712031811958606
- Jonathan Barham, M. D.Monroe, LA 712031992702641
- Eddye Blossom, MDMonroe, LA 712021003028762
- Meeli Gandhi, MDMonroe, LA 712021922307727
- Sherry Luther, M.D.Monroe, LA 712021700899002
- Gary Menefee, M.D.Monroe, LA 712021679585947
Common questions
What is John S. Ziegler, MD's NPI number?
John S. Ziegler, MD's National Provider Identifier (NPI) is 1669465316, issued on Aug 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John S. Ziegler, MD located?
The NPPES record lists a practice address at 510S Washington St, Bastrop, LA, 71220. Phone: (318) 281-8596. Providers update this record themselves, so call before visiting.
How can I verify John S. Ziegler, MD's license?
NPPES lists Louisiana license number 012780, 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 John S. Ziegler, MD prescribe under Medicare Part D?
In 2024, John S. Ziegler, MD had 625 Medicare Part D claims for 91 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.