Michael E. Portner, MD
Nephrology Physician · Cleveland, MS
Michael E. Portner, MD is a nephrology physician with a practice address in Cleveland, Mississippi, and NPI 1659439867, issued on Dec 4, 2006. Check the license (Mississippi 09174, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Michael E. Portner
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 09174 MS
Self-reported in NPPES; status is on the state search - Practice location
- 803 First Street, Cleveland, MS 38732
- Phone
- (662) 843-2721
- Enumerated
- Dec 4, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00115736 MS
- Medicare enrollment
- Enrolled (PECOS I20111103000608); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 110 in Mississippi → Look up another NPI →
Verify Michael E. Portner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 09174Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average nephrology physician in 2024
1,271 Medicare Part D claims for 136 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 45 claims were for opioids.
Most prescribed
- Sevelamer Carbonate189 claims
- Velphoro121 claims
- Auryxia98 claims
- Amlodipine Besylate63 claims
- Calcium Acetate38 claims
- Ciprofloxacin Hcl35 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.
Bills Medicare through 2 group practices
- Delta Hills Nephrology AssociatesGreenwood, MS
- Delta Hills Nephrology Clinics PLLCCleveland, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael E. Portner among 110 nephrology physician records in Mississippi
Michael E. Portner, MD is one of 110 nephrology physician records with a practice address in Mississippi. 80% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 40% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1980 · median 1999 among the 81 with a school on file
- Record last updated2007 · 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 207RN0300X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 nephrology physician records list a practice address in Cleveland
They are 2 of the 203 NPPES records with a practice address in Cleveland, and 110 nephrology physician records in Mississippi.
All 110 in Mississippi → Every provider in Cleveland → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- David Hirsch, M.D.Cleveland, MS 387321467641787
- Nouhad Kronfol, M.D.Greenville, MS 387031033142724
- Wilson Parry, MDGreenville, MS 387031124188347
- Ravi Patel, M.DGreenville, MS 387031174971006
- Amita Patel, M.D.Greenville, MS 387031417149253
- Shehbaz Shukoor, M.D.Southaven, MS 386711295398261
- Calvin Baker, MDTupelo, MS 388011457814220
- Marcus Britton, M.D.Tupelo, MS 388011003842378
Common questions
What is Michael E. Portner, MD's NPI number?
Michael E. Portner, MD's National Provider Identifier (NPI) is 1659439867, issued on Dec 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael E. Portner, MD located?
The NPPES record lists a practice address at 803 First Street, Cleveland, MS, 38732. Phone: (662) 843-2721. Providers update this record themselves, so call before visiting.
How can I verify Michael E. Portner, MD's license?
NPPES lists Mississippi license number 09174, 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 Michael E. Portner, MD prescribe under Medicare Part D?
In 2024, Michael E. Portner, MD had 1,271 Medicare Part D claims for 136 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.