Diahann Marshall, M.D.
Family Medicine Physician · Alexandria, LA
Diahann Marshall, M.D. is a family medicine physician with a practice address in Alexandria, Louisiana, and NPI 1245694231, issued on Apr 6, 2016. Check the license (Louisiana 333177, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Diahann Marshall
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 333177 LA
S2838 TX
Self-reported in NPPES; status is on the state search - Practice location
- 301 4TH St Ste A, Alexandria, LA 71301
- Phone
- (318) 441-1041
- Enumerated
- Apr 6, 2016
- Record last updated
- Oct 11, 2022
- Fax
- (318) 441-1050
- Medicare enrollment
- Enrolled (PECOS I20221103000051); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,728 in Louisiana → Look up another NPI →
Also registered at 301 4TH St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sanjay Shrestha, MDFamily Medicine Physician1659924389
Verify Diahann Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 333177Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
253 Medicare Part D claims for 44 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium15 claims
- Losartan Potassium13 claims
- Hydrochlorothiazide11 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: $18.10
1 payment: food and beverage; the largest payer was Exact Sciences Corporation. 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 2 group practices
- Lsumc-S Family Practice MedicalAlexandria, LA
- Villagemd OF Southeast Texas PAHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diahann Marshall among 1,728 family medicine physician records in Louisiana
Diahann Marshall, M.D. is one of 1,728 family medicine physician records with a practice address in Louisiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2015 · median 2006 among the 1,201 with a school on file
- Record last updated2022 · 61% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 family medicine physician records list a practice address in Alexandria
They are 57 of the 2,390 NPPES records with a practice address in Alexandria, and 1,728 family medicine physician records in Louisiana.
All 1,728 in Louisiana → Every provider in Alexandria → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sharifa Baker, MDAlexandria, LA 713011811979073
- Gregory Bevels, MDAlexandria, LA 713011750366027
- Gregory Brian, M.D.Alexandria, LA 713011184616252
- Kenneth Brown, M.D.Alexandria, LA 713011497779755
- Joan Brunson, M.D.Alexandria, LA 713011184616112
- Brian Elkins, MDAlexandria, LA 713011366452807
- Heather Guillot, MDAlexandria, LA 713011689684144
- Jonathan Hunter, M.D.Alexandria, LA 713011619969532
Common questions
What is Diahann Marshall, M.D.'s NPI number?
Diahann Marshall, M.D.'s National Provider Identifier (NPI) is 1245694231, issued on Apr 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Diahann Marshall, M.D. located?
The NPPES record lists a practice address at 301 4TH St Ste A, Alexandria, LA, 71301. Phone: (318) 441-1041. Providers update this record themselves, so call before visiting.
How can I verify Diahann Marshall, M.D.'s license?
NPPES lists Louisiana license number 333177, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diahann Marshall, M.D. prescribe under Medicare Part D?
In 2024, Diahann Marshall, M.D. had 253 Medicare Part D claims for 44 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.