Eric Karl Undesser, MD, PHD
Neurology Physician · Jackson, MS
Eric Karl Undesser, MD, PHD is a neurology physician with a practice address in Jackson, Mississippi, and NPI 1124051321, issued on Jul 9, 2006. Check the license (Mississippi 11945, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Eric Karl Undesser
- Credential
- MD, PHD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 11945 MS
G8472 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Woodrow Wilson Ave, Jackson, MS 39216
- Phone
- (601) 364-1285
- Enumerated
- Jul 9, 2006
- Record last updated
- Apr 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (601) 364-1257
- Medicaid ID
- 09880325 MS
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 116 in Mississippi → Look up another NPI →
Also registered at 1500 E Woodrow Wilson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Linda Allee, M.D.Internal Medicine Physician1306044961
- Christine Allen, L.C.S.W.Clinical Social Worker1417265240
Verify Eric Karl Undesser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 11945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 69.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Eric Karl Undesser among 116 neurology physician records in Mississippi
Eric Karl Undesser, MD, PHD is one of 116 neurology physician records with a practice address in Mississippi. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 56% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2014 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Mississippi
There are 116 neurology physician records in Mississippi.
All 116 in Mississippi → Every provider in Jackson → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Ruth Fredericks, M.D.Jackson, MS 392161730138843
- Robert Herndon, M.D.Jackson, MS 392161124034590
- Angel Leis, MDJackson, MS 392161841302411
- David McHenry, MDJackson, MS 392161053494831
- Kathleen Messenger, M.D.Jackson, MS 392161174574701
- Alan Moore, MDJackson, MS 392161245330133
- Mitchell Myers, M.D.Jackson, MS 392161386784239
- Ethel Rose, MDJackson, MS 392161376568568
Common questions
What is Eric Karl Undesser, MD, PHD's NPI number?
Eric Karl Undesser, MD, PHD's National Provider Identifier (NPI) is 1124051321, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric Karl Undesser, MD, PHD located?
The NPPES record lists a practice address at 1500 E Woodrow Wilson Ave, Jackson, MS, 39216. Phone: (601) 364-1285. Providers update this record themselves, so call before visiting.
How can I verify Eric Karl Undesser, MD, PHD's license?
NPPES lists Mississippi license number 11945, 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.
What is Eric Karl Undesser, MD, PHD's MIPS final score?
The 2023 MIPS final score is 69.8 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.