NPPES file of Aug 9, 2026

Sidney L. St. Amant, M.D.

Emergency Medicine Physician · Walker, LA

Sidney L. St. Amant, M.D. is an emergency medicine physician with a practice address in Walker, Louisiana, and NPI 1285677187, issued on Jun 14, 2006. Check the license (Louisiana 016701, as entered in NPPES) on the Louisiana State Board of Medical Examiners; 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
1285677187
Name
Sidney L. St. Amant
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
016701 LA
Self-reported in NPPES; status is on the state search
Practice location
28050 Walker South RD, Walker, LA 70785
Phone
(225) 664-2111
Enumerated
Jun 14, 2006
Record last updated
Mar 4, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(225) 664-2888
Medicaid ID
1328855 LA
Medicare enrollment
Enrolled (PECOS I20040526001231); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 1982
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 28050 Walker South RD

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

  1. Michelle Civello, N.P.Family Nurse Practitioner1396051868

Verify Sidney L. St. Amant in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
    Search for license 016701
    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 Louisiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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89% more Medicare Part D claims than the average emergency medicine physician in 2024

427 Medicare Part D claims for 287 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Sidney St. Amant427
  2. Specialty average226

Most prescribed

  1. Doxycycline Monohydrate75 claims
  2. Prednisone60 claims
  3. Cefdinir39 claims
  4. Azithromycin37 claims
  5. Clindamycin Hcl27 claims
  6. Cefadroxil25 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): 55.4 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 score49.5
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Bills Medicare through one group practice

  1. Acadiana Urgent Care Associates, LLCLafayette, LA

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

Sidney L. St. Amant among 1,000 emergency medicine physician records in Louisiana

Sidney L. St. Amant, M.D. is one of 1,000 emergency medicine physician records with a practice address in Louisiana. 87% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 59% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1982 · median 2010 among the 653 with a school on file
  • Record last updated2011 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Louisiana

There are 1,000 emergency medicine physician records in Louisiana.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Carrie Cearley, MDZachary, LA 707911801095971
  2. Kelvin Ellis, D.O.Zachary, LA 707911407340441
  3. Michael Hughes, M.DZachary, LA 707911942662820
  4. Elizabeth James, MDZachary, LA 707911699967679
  5. Thomas Trahan, MDZachary, LA 707911912097460
  6. Mark McInnis, M.D.Saint Gabriel, LA 707761427239953
  7. Ewell BickhamSaint Francisville, LA 707751073565370
  8. William Freeman, MDPrairieville, LA 707691689698102

Common questions

What is Sidney L. St. Amant, M.D.'s NPI number?

Sidney L. St. Amant, M.D.'s National Provider Identifier (NPI) is 1285677187, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sidney L. St. Amant, M.D. located?

The NPPES record lists a practice address at 28050 Walker South RD, Walker, LA, 70785. Phone: (225) 664-2111. Providers update this record themselves, so call before visiting.

How can I verify Sidney L. St. Amant, M.D.'s license?

NPPES lists Louisiana license number 016701, 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 Sidney L. St. Amant, M.D. prescribe under Medicare Part D?

In 2024, Sidney L. St. Amant, M.D. had 427 Medicare Part D claims for 287 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Sidney L. St. Amant, M.D.'s MIPS final score?

The 2023 MIPS final score is 55.4 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.