Christy S. Barnett, M.D.
Internal Medicine Physician · Hattiesburg, MS
Christy S. Barnett, M.D. is an internal medicine physician with a practice address in Hattiesburg, Mississippi, and NPI 1841271293, issued on Nov 10, 2005. Check the license (Mississippi 15366, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Christy S. Barnett
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 15366 MS
Self-reported in NPPES; status is on the state search - Practice location
- 16 Office Park Dr, Hattiesburg, MS 39402
- Phone
- (601) 271-6099
- Enumerated
- Nov 10, 2005
- Record last updated
- Dec 19, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (601) 271-9094
- Medicare enrollment
- Enrolled (PECOS I20050310000429); accepts Medicare assignment
- Medical or professional school
- University Of South Alabama College Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 972 in Mississippi → Look up another NPI →
Also registered at 16 Office Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Douglas Peterman, RPTPhysical Therapist1073721528
- Kimberly Ryder, P.T.Physical Therapist1639289945
Verify Christy S. Barnett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 15366Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
201 Medicare Part D claims for 59 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Isoniazid100 claims
- Rifampin39 claims
- Medroxyprogesterone Acetate30 claims
- Priftin13 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
- MS State Department OF HealthClarksdale, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christy S. Barnett among 972 internal medicine physician records in Mississippi
Christy S. Barnett, M.D. is one of 972 internal medicine physician records with a practice address in Mississippi. 82% 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, 96% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1994 · median 2008 among the 585 with a school on file
- Record last updated2016 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 internal medicine physician records list a practice address in Hattiesburg
They are 46 of the 2,569 NPPES records with a practice address in Hattiesburg, and 972 internal medicine physician records in Mississippi.
All 972 in Mississippi → Every provider in Hattiesburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Larry Aycock, MDHattiesburg, MS 394021740238211
- Renee BowlingHattiesburg, MS 394021891886453
- Steven Farrell, MDHattiesburg, MS 394021669482907
- Gardner Fletcher, MDHattiesburg, MS 394021114982485
- Hannelore Giles, M.D.Hattiesburg, MS 394021710137906
- Jerry Hyer, MDHattiesburg, MS 394021770548950
- Sivarama Kotikalapudi, M.D.Hattiesburg, MS 394021124069521
- Michelle Lai, M.D.Hattiesburg, MS 394021477676831
Common questions
What is Christy S. Barnett, M.D.'s NPI number?
Christy S. Barnett, M.D.'s National Provider Identifier (NPI) is 1841271293, issued on Nov 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Christy S. Barnett, M.D. located?
The NPPES record lists a practice address at 16 Office Park Dr, Hattiesburg, MS, 39402. Phone: (601) 271-6099. Providers update this record themselves, so call before visiting.
How can I verify Christy S. Barnett, M.D.'s license?
NPPES lists Mississippi license number 15366, 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 Christy S. Barnett, M.D. prescribe under Medicare Part D?
In 2024, Christy S. Barnett, M.D. had 201 Medicare Part D claims for 59 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.