David R. Clarkson, M.D.
Hematology & Oncology Physician · Mobile, AL
David R. Clarkson, M.D. is a hematology & oncology physician with a practice address in Mobile, Alabama, and NPI 1588656920, issued on Aug 22, 2005. Check the license (Alabama 6556, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- David R. Clarkson
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 6556 AL
Self-reported in NPPES; status is on the state search - Practice location
- 1660 Springhill Ave, Mobile, AL 36604
- Phone
- (251) 665-8000
- Enumerated
- Aug 22, 2005
- Record last updated
- Jun 3, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (251) 665-8010
- Medicaid IDs
- 00123732 MS
009946340 AL - Medicare enrollment
- Enrolled (PECOS I20070329000335); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 191 in Alabama → Look up another NPI →
Also registered at 1660 Springhill Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Cameron, M.D.Hematology & Oncology Physician1558353987
- William Taylor, WILLIAM TAYLORHematology & Oncology Physician1114166139
- Rose Ann Wells, CRNPNurse Practitioner1437102795
Verify David R. Clarkson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 6556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
288 Medicare Part D claims for 78 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Atorvastatin Calcium20 claims
- Amlodipine Besylate19 claims
- Lisinopril14 claims
- Sertraline Hcl12 claims
- Gabapentin11 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: $67.01
2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Gulf Health Hospitals IncFairhope, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David R. Clarkson among 191 hematology & oncology physician records in Alabama
David R. Clarkson, M.D. is one of 191 hematology & oncology physician records with a practice address in Alabama. 87% 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, 96% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1969 · median 2006 among the 153 with a school on file
- Record last updated2015 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Alabama
There are 191 hematology & oncology physician records in Alabama.
All 191 in Alabama → Every provider in Mobile → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Ahmed Abdalla, M.DMobile, AL 366041568848901
- Thaddeus Beeker, MDMobile, AL 366041780637579
- Thomas Butler, MDMobile, AL 366041396787230
- Daniel Cameron, M.D.Mobile, AL 366041558353987
- Daisy Escobar, MDMobile, AL 366041689151383
- Nabin Karki, MDMobile, AL 366041295186476
- Anita Mazloom, MDMobile, AL 366041033607858
- Ayesha Munir, MDMobile, AL 366041386174563
Common questions
What is David R. Clarkson, M.D.'s NPI number?
David R. Clarkson, M.D.'s National Provider Identifier (NPI) is 1588656920, issued on Aug 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David R. Clarkson, M.D. located?
The NPPES record lists a practice address at 1660 Springhill Ave, Mobile, AL, 36604. Phone: (251) 665-8000. Providers update this record themselves, so call before visiting.
How can I verify David R. Clarkson, M.D.'s license?
NPPES lists Alabama license number 6556, 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 R. Clarkson, M.D. prescribe under Medicare Part D?
In 2024, David R. Clarkson, M.D. had 288 Medicare Part D claims for 78 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.