Karen L. Allen, MD
Family Medicine Physician · Huntsville, AL
Karen L. Allen, MD is a family medicine physician with a practice address in Huntsville, Alabama, and NPI 1588625065, issued on Apr 1, 2006. Check the license (Alabama 21092, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Karen L. Allen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 21092 AL
Self-reported in NPPES; status is on the state search - Practice location
- 4205 Balmoral Dr, Huntsville, AL 35801
- Phone
- (256) 382-7767
- Enumerated
- Apr 1, 2006
- Record last updated
- Mar 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (256) 880-5262
- Medicare enrollment
- Enrolled (PECOS I20100623000166); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,996 in Alabama → Look up another NPI →
Also registered at 4205 Balmoral Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Darla Cowart, MDFamily Medicine Physician1114988698
Verify Karen L. Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 21092Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average family medicine physician in 2024
1,581 Medicare Part D claims for 168 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Rosuvastatin Calcium129 claims
- Levothyroxine Sodium89 claims
- Amlodipine Besylate71 claims
- Lisinopril59 claims
- Atorvastatin Calcium58 claims
- Telmisartan58 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: $175.19
9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Total Sports Care, P.C.Huntsville, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen L. Allen among 1,996 family medicine physician records in Alabama
Karen L. Allen, MD is one of 1,996 family medicine physician records with a practice address in Alabama. 84% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 52% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1999 · median 2005 among the 1,346 with a school on file
- Record last updated2008 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
168 family medicine physician records list a practice address in Huntsville
They are 168 of the 5,555 NPPES records with a practice address in Huntsville, and 1,996 family medicine physician records in Alabama.
All 1,996 in Alabama → Every provider in Huntsville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Blankenship, DOHuntsville, AL 358011013994342
- David Calderwood, MDHuntsville, AL 358011235110586
- Michael Carter, M.D.Huntsville, AL 358011427045152
- James Chambers, M.D.Huntsville, AL 358011598765588
- Norman Ervin, M. D.Huntsville, AL 358011821089012
- Tobin Fisher, MDHuntsville, AL 358011447231014
- Forest Herrington, MDHuntsville, AL 358011417938085
- Herbert Holdsambeck, MDHuntsville, AL 358011649251216
Common questions
What is Karen L. Allen, MD's NPI number?
Karen L. Allen, MD's National Provider Identifier (NPI) is 1588625065, issued on Apr 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen L. Allen, MD located?
The NPPES record lists a practice address at 4205 Balmoral Dr, Huntsville, AL, 35801. Phone: (256) 382-7767. Providers update this record themselves, so call before visiting.
How can I verify Karen L. Allen, MD's license?
NPPES lists Alabama license number 21092, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen L. Allen, MD prescribe under Medicare Part D?
In 2024, Karen L. Allen, MD had 1,581 Medicare Part D claims for 168 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.