NPPES file of Aug 9, 2026

Adam M. Duplechain, DO

Emergency Medicine Physician · Jackson, MS

Adam M. Duplechain, DO is an emergency medicine physician with a practice address in Jackson, Mississippi, and NPI 1124559422, issued on Mar 27, 2017. Check the license (Mississippi 27710, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124559422
Name
Adam M. Duplechain
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
27710 MS
Self-reported in NPPES; status is on the state search
Practice location
1850 Chadwick Dr, Jackson, MS 39204
Phone
(601) 376-1000
Enumerated
Mar 27, 2017
Record last updated
Jul 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200619000039); accepts Medicare assignment
Medical or professional school
William Carey University College Of Osteopathic Medicine, 2017
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 1850 Chadwick Dr

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

  1. Devon AllredElectroneurodiagnostic Specialist/Technologist1346847274
  2. David Barnett, MDAnesthesiology Physician1689767782
  3. Rodney Biggs, NPFamily Nurse Practitioner1124400411
  4. Christopher Billsby, D.O.Emergency Medicine Physician1952832370
  5. Donald Bonner, D.O.Anesthesiology Physician1497788178
  6. Haley Boteler, OTD, OTR/LOccupational Therapist1326744251

Verify Adam M. Duplechain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
    Search for license 27710
    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 Mississippi 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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2.1 times the Medicare Part D claims of the average emergency medicine physician in 2024

484 Medicare Part D claims for 278 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 31 claims were for opioids.

  1. Adam Duplechain484
  2. Specialty average226

Most prescribed

  1. Prednisone64 claims
  2. Tizanidine Hcl39 claims
  3. Ibuprofen38 claims
  4. Azithromycin26 claims
  5. Hydrocodone-Acetaminophen22 claims
  6. Albuterol Sulfate Hfa19 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

  1. Jackson HB Medical Services LLCJackson, MS

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

Adam M. Duplechain among 515 emergency medicine physician records in Mississippi

Adam M. Duplechain, DO is one of 515 emergency medicine physician records with a practice address in Mississippi. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 65% of them.

  • NPI issued2017 · 65% of these records are older, 31% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2017 · median 2011 among the 339 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 207P00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

197 emergency medicine physician records list a practice address in Jackson

They are 197 of the 6,997 NPPES records with a practice address in Jackson, and 515 emergency medicine physician records in Mississippi.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Christopher Billsby, D.O.Jackson, MS 392041952832370
  2. Terry Brantley, MDJackson, MS 392041053355040
  3. David Dean, D.O.Jackson, MS 392041114976677
  4. Werner Haddon, MDJackson, MS 392041699716449
  5. Shunte Jones, MDJackson, MS 392041689618670
  6. Richard Miles, DOJackson, MS 392041316987175
  7. David Monaco, MDJackson, MS 392041013612894
  8. Lana Phan, M.D.Jackson, MS 392041033571856

Common questions

What is Adam M. Duplechain, DO's NPI number?

Adam M. Duplechain, DO's National Provider Identifier (NPI) is 1124559422, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Adam M. Duplechain, DO located?

The NPPES record lists a practice address at 1850 Chadwick Dr, Jackson, MS, 39204. Phone: (601) 376-1000. Providers update this record themselves, so call before visiting.

How can I verify Adam M. Duplechain, DO's license?

NPPES lists Mississippi license number 27710, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Adam M. Duplechain, DO prescribe under Medicare Part D?

In 2024, Adam M. Duplechain, DO had 484 Medicare Part D claims for 278 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.