Grif A. Leek, MD
Emergency Medical Services (Emergency Medicine) Physician · Hattiesburg, MS
Grif A. Leek, MD is an emergency medical services (emergency medicine) physician with a practice address in Hattiesburg, Mississippi, and NPI 1841284767, issued on Sep 7, 2005. Check the license (Mississippi 15896, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Grif A. Leek
- Credential
- MD
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- 15896 MS
Self-reported in NPPES; status is on the state search - Practice location
- 5001 Hardy St, Hattiesburg, MS 39402
- Phone
- (601) 268-8000
- Enumerated
- Sep 7, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00119541 MS
- Medicare enrollment
- Enrolled (PECOS I20101101000069); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1995
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 31 in Mississippi → Look up another NPI →
Also registered at 5001 Hardy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cindy Armstead, D.O.Emergency Medicine Physician1942427802
- Kizzy Bailey, MDEmergency Medicine Physician1700046414
Verify Grif A. Leek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 15896Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
89 Medicare Part D claims for 62 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
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.
Bills Medicare through one group practice
- Relias Emergency Medicine Specialists OF Hattiesburg LLCHattiesburg, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grif A. Leek among 31 emergency medical services (emergency medicine) physician records in Mississippi
Grif A. Leek, MD is one of 31 emergency medical services (emergency medicine) physician records with a practice address in Mississippi. 81% 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, 74% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1995 · median 1998 among the 21 with a school on file
- Record last updated2007 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in Mississippi
There are 31 emergency medical services (emergency medicine) physician records in Mississippi.
All 31 in Mississippi → Every provider in Hattiesburg → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- Herbert Floyd, MDHattiesburg, MS 394021457345365
- Carla Holder, DOHattiesburg, MS 394021881688703
- Lisa Leek, MDHattiesburg, MS 394021710971635
- Greg Tavai, MDHattiesburg, MS 394021952395899
- Melissa Roberts, MDHattiesburg, MS 394061174517007
- Danielle Blakeney, M. D.Laurel, MS 394401942402029
- Jon Boyles, M.D.Philadelphia, MS 393501396787180
- Linus Martin, M.D.Philadelphia, MS 393501417993668
Common questions
What is Grif A. Leek, MD's NPI number?
Grif A. Leek, MD's National Provider Identifier (NPI) is 1841284767, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Grif A. Leek, MD located?
The NPPES record lists a practice address at 5001 Hardy St, Hattiesburg, MS, 39402. Phone: (601) 268-8000. Providers update this record themselves, so call before visiting.
How can I verify Grif A. Leek, MD's license?
NPPES lists Mississippi license number 15896, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grif A. Leek, MD prescribe under Medicare Part D?
In 2024, Grif A. Leek, MD had 89 Medicare Part D claims for 62 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.