Katherine Ferren, M.D.
Infectious Disease Physician · Little Rock, AR
Katherine Ferren, M.D. is an infectious disease physician with a practice address in Little Rock, Arkansas, and NPI 1326305590, issued on Apr 12, 2012. Check the license (Arkansas E8998, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Katherine Ferren
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- E8998 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1 Saint Vincent Cir Ste 160, Little Rock, AR 72205
- Phone
- (501) 661-0067
- Enumerated
- Apr 12, 2012
- Entity
- Type 1 · individual
Also registered at 1 Saint Vincent Cir Ste 160
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica FrazierInfectious Disease Physician1689036329
- Morgan Storey, CNPFamily Nurse Practitioner1063866341
- Priyenka Thapa, M.D.Infectious Disease Physician1023471885
Verify Katherine Ferren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E8998Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
54% fewer Medicare Part D claims than the average infectious disease physician in 2024
369 Medicare Part D claims for 78 beneficiaries, against an average of 807 among the 5,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Ceftriaxone97 claims
- Daptomycin47 claims
- Vancomycin Hcl31 claims
- Sodium Chloride23 claims
- Cefazolin Sodium19 claims
- Diphenhydramine Hcl19 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: $457.47
21 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 3,057 providers of this specialty with any payment received $4,644.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Infectious Disease Resource Group LLPLittle Rock, AR
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Infectious Disease Physician providers in Arkansas
There are 29 infectious disease physician records in Arkansas.
Other infectious disease physician records in Arkansas
- Carl Abraham, M.D.Jonesboro, AR1295774388
- Raymond Bandy, MDMountain Home, AR1265411318
- Jeremy BariolaLittle Rock, AR1255546776
- Robert Bradsher, MDLittle Rock, AR1386734861
- Ryan Dare, M.D.Little Rock, AR1922390889
- John Dietrich, M.D.Little Rock, AR1417927807
- Andrew Ebers, M.D.Rogers, AR1689931941
- Jessica FrazierLittle Rock, AR1689036329
- Ashwini Gotimukul, MDJonesboro, AR1801474325
- Monica Grazziutti, MDLittle Rock, AR1255431110
Common questions
What is Katherine Ferren, M.D.'s NPI number?
Katherine Ferren, M.D.'s National Provider Identifier (NPI) is 1326305590, issued on Apr 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Ferren, M.D. located?
The NPPES record lists a practice address at 1 Saint Vincent Cir Ste 160, Little Rock, AR, 72205. Phone: (501) 661-0067. Providers update this record themselves, so call before visiting.
How can I verify Katherine Ferren, M.D.'s license?
NPPES lists Arkansas license number E8998, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Ferren, M.D. prescribe under Medicare Part D?
In 2024, Katherine Ferren, M.D. had 369 Medicare Part D claims for 78 beneficiaries; the average among infectious disease physician prescribers was 807. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.