NPPES file of Aug 9, 2026

Karen Ashmore Maltby, M.D.

Allergy & Immunology Physician · Tupelo, MS

Karen Ashmore Maltby, M.D. is an allergy & immunology physician with a practice address in Tupelo, Mississippi, and NPI 1114134863, issued on May 16, 2007. Check the license 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
1114134863
Name
Karen Ashmore Maltby
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
46387 TN
Self-reported in NPPES; status is on the state search
Practice location
811 Garfield St, Tupelo, MS 38801
Phone
(662) 620-0688
Enumerated
May 16, 2007
Record last updated
Jun 20, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130701000328); accepts Medicare assignment
Medical or professional school
University Of Mississippi School Of Medicine, 2006
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 811 Garfield St

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

  1. Courtney Floyd, FNPNurse Practitioner1639953409
  2. Laken Hogue, FNP-CFamily Nurse Practitioner1912595521
  3. Lacrista Montgomery, SPECIALUSTProsthetics Case Management1710505649
  4. Matthew Oswalt, M.D.Allergy & Immunology Physician1679784599
  5. Natasha Stephens, FNP-CFamily Nurse Practitioner1457172405

Verify Karen Ashmore Maltby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMississippi State Board of Medical LicensureCheck 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

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2.2 times the Medicare Part D claims of the average allergy & immunology physician in 2024

1,655 Medicare Part D claims for 270 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Karen Maltby1,655
  2. Specialty average741

Most prescribed

  1. Montelukast Sodium411 claims
  2. Fluticasone Propionate287 claims
  3. Famotidine144 claims
  4. Azelastine Hcl131 claims
  5. Albuterol Sulfate Hfa122 claims
  6. Breztri Aerosphere48 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.

Industry payments in 2024: $1,397.07

51 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Maltby$1,397.07
  2. Specialty average$8,321.81

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. North Mississippi Allergy And Asthma Center PLLCTupelo, MS

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

Allergy & Immunology Physician providers in Mississippi

There are 23 allergy & immunology physician records in Mississippi.

Other allergy & immunology physician records in Mississippi

  1. Todd Adkins, M.D.Jackson, MS1629056502
  2. Charlene Broome, M.D.Hattiesburg, MS1720007040
  3. James Haltom, MDJackson, MS1710965694
  4. James Holland, M.D.Gulfport, MS1063527356
  5. Stephen Kemp, MDJackson, MS1548204746
  6. Timothy Kerut, MDVicksburg, MS1932130127
  7. Douglas Leavengood, M.D.Biloxi, MS1194900167
  8. Taylor Mabry, MDJackson, MS1154819415
  9. Kathryn McMullan, M.D.Hattiesburg, MS1518164490
  10. Mark Murray, M.D.Diberville, MS1669594974

Common questions

What is Karen Ashmore Maltby, M.D.'s NPI number?

Karen Ashmore Maltby, M.D.'s National Provider Identifier (NPI) is 1114134863, issued on May 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Karen Ashmore Maltby, M.D. located?

The NPPES record lists a practice address at 811 Garfield St, Tupelo, MS, 38801. Phone: (662) 620-0688. Providers update this record themselves, so call before visiting.

How can I verify Karen Ashmore Maltby, M.D.'s license?

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 Karen Ashmore Maltby, M.D. prescribe under Medicare Part D?

In 2024, Karen Ashmore Maltby, M.D. had 1,655 Medicare Part D claims for 270 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.