Mark N. Klein, MD
Mark N. Klein is a Nephrology Physician provider (Internal Medicine) practicing in Flowood, MS, registered in the NPPES registry with NPI 1376628529 since 2006. The credential MD stands for Doctor of Medicine. Practices at Central Nephrology Clinic Pllc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1376628529 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark N. Klein |
| Credential | MD |
| Sex | Male |
| Practice address | 102 RIVERVIEW DR STE A, Flowood, MS, 39232 |
| Phone | 6019811610 |
| Fax | 6013662887 |
| Enumeration date | 2006-10-26 |
| Last updated in NPPES | 2026-05-19 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RN0300X | Nephrology Physician | Primary | 15985 | MS |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 000125529 | Medicaid | MS | — |
| 15985 | Other | MS | LICENSE |
Copy-ready billing details
Provider: Mark Klein, MD NPI: 1376628529 Taxonomy: 207RN0300X (Nephrology Physician) Address: 102 RIVERVIEW DR STE A, Flowood, MS, 39232
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1396716866 | Steven Wagner | Individual | Nephrology Physician | Flowood, MS |
| 1194809822 | Daphne Bilbrew | Individual | Nephrology Physician | Flowood, MS |
| 1871678029 | Francis Phillippi | Individual | Nephrology Physician | Flowood, MS |
| 1588875363 | Derrick Tesseneer | Individual | Nephrology Physician | Flowood, MS |
| 1083813240 | Dixie Brown | Individual | Family Nurse Practitioner | Flowood, MS |
| 1306166970 | Lindsey Norris | Individual | Nephrology Physician | Flowood, MS |
| 1114239423 | Lee Ferguson | Individual | Nephrology Physician | Flowood, MS |
| 1942576277 | Central Nephrology Clinic Pllc | Organization | Nephrology Physician | Flowood, MS |
Verify this record
Cross-check NPI 1376628529 against the authoritative CMS record: view Mark N. Klein on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-05-19.