Katherine Allan, M.D.
Internal Medicine Physician · Memphis, TN
Katherine Allan, M.D. is an internal medicine physician with a practice address in Memphis, Tennessee, and NPI 1942402284, issued on May 31, 2007. Check the license on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Katherine Allan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 100 N Humphreys Blvd, Memphis, TN 38120
- Phone
- (901) 683-0055
- Enumerated
- May 31, 2007
- Entity
- Type 1 · individual
Also registered at 100 N Humphreys Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashlea Anderson, NPRegistered Nurse1548586092
- Nancy Bailey, NPNurse Practitioner1396778247
- Matthew Ballo, M.D.Radiation Oncology Physician1013017094
- Tammara Beard, NPNurse Practitioner1760415624
- Stephen Besh, M.D.Hematology & Oncology Physician1659375392
- Saundra Bosche, RN/NPFamily Nurse Practitioner1699752311
Verify Katherine Allan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
43 Medicare Part D claims for 15 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Ceftriaxone13 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.
One hospital or facility affiliation
- Southeastern Physician Services PCMemphis, TN
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.
323 internal medicine physician records list a Memphis practice address
They are 323 of the 12,794 NPPES records with a Memphis practice address, and 2,907 internal medicine physician records in Tennessee.
All 323 in Memphis → All 2,907 in Tennessee → Every provider in Memphis →
Other internal medicine physician records in Tennessee
- Damon Abaray, MDNashville, TN1275680134
- Samuel Abbas, MDHixson, TN1497105373
- Matthew Abbate, MDNashville, TN1982796306
- Kazeen Abdullah, M.D.Smyrna, TN1790084929
- Sarmed Abdullah, M.D.Lexington, TN1588755359
- Mark Abi Nader, M.D.Memphis, TN1841538147
- Mouna Abouamara, MDJohnson City, TN1447324603
- Betty Abraham, MDChattanooga, TN1093923633
- Vandana Abramson, MDNashville, TN1154359602
- Tarek Absi, MDNashville, TN1578647681
Common questions
What is Katherine Allan, M.D.'s NPI number?
Katherine Allan, M.D.'s National Provider Identifier (NPI) is 1942402284, issued on May 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Allan, M.D. located?
The NPPES record lists a practice address at 100 N Humphreys Blvd, Memphis, TN, 38120. Phone: (901) 683-0055. Providers update this record themselves, so call before visiting.
How can I verify Katherine Allan, M.D.'s license?
Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Allan, M.D. prescribe under Medicare Part D?
In 2024, Katherine Allan, M.D. had 43 Medicare Part D claims for 15 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.