David Keith Calderwood, MD
Family Medicine Physician · Huntsville, AL
David Keith Calderwood, MD is a family medicine physician with a practice address in Huntsville, Alabama, and NPI 1235110586, issued on Nov 11, 2005. Check the license (Alabama 10438, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- David Keith Calderwood
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 10438 AL
Self-reported in NPPES; status is on the state search - Practice location
- 420 Lowell Dr SE, Huntsville, AL 35801
- Phone
- (256) 535-5944
- Enumerated
- Nov 11, 2005
- Record last updated
- Feb 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (256) 535-5959
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,996 in Alabama → Look up another NPI →
Also registered at 420 Lowell Dr SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Keith Calderwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 10438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
28 Medicare Part D claims for 11 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $125.89
1 payment: food and beverage; the largest payer was Mirum Pharmaceuticals, Inc. 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.
David Keith Calderwood among 1,996 family medicine physician records in Alabama
David Keith Calderwood, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2010 · 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
- 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
- Timothy Howard, M.D.Huntsville, AL 358011619964343
Common questions
What is David Keith Calderwood, MD's NPI number?
David Keith Calderwood, MD's National Provider Identifier (NPI) is 1235110586, issued on Nov 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Keith Calderwood, MD located?
The NPPES record lists a practice address at 420 Lowell Dr SE, Huntsville, AL, 35801. Phone: (256) 535-5944. Providers update this record themselves, so call before visiting.
How can I verify David Keith Calderwood, MD's license?
NPPES lists Alabama license number 10438, 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 David Keith Calderwood, MD prescribe under Medicare Part D?
In 2024, David Keith Calderwood, MD had 28 Medicare Part D claims for 11 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.