Active NPI
Mark N. Klein, MD
- Nephrology Physician
- Flowood, MS
National Provider Identifier
1376628529
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nephrology Physician
- License
- 15985
- Practice address
- 102 Riverview Dr Ste a
Flowood, MS 39232-8908 - Phone
- (601) 981-1610
- Fax
- (601) 366-2887
- NPI assigned
- Oct 26, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nephrology Physician | 207RN0300X | 15985 | MS | Primary |
Addresses
Primary practice location
102 Riverview Dr Ste a
Flowood, MS 39232-8908
Mailing address
102 Riverview Dr Ste a
Flowood, MS 39232-8908
Phone (601) 981-1610
Other practice location 1
1010 Lakeland Square Ext Ste B
Flowood, MS 39232-7607
Phone (601) 936-0890
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 000125529 | Medicaid | MS | |
| 15985 | Other | MS | LICENSE |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MS
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Nephrology
- Education
- University of Mississippi School of Medicine, 1997
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
102 Riverview Dr
Suite a
Flowood, MS 39232-8908
Phone (601) 981-1610
Hospital & facility affiliations
- FMC Dialysis Services of Rankin County
- FKC Dogwood
- FMC Lakeland Home Program
- FMC Magee
- Mississippi Baptist Medical Center
- St Dominic-Jackson Memorial Hospital
- Magee General Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Central Nephrology Clinic PLLC | Nephrology | Current | Accepting new patients |
| Flowood Vascular Access Center Inc | Nephrology | Current | Accepting new patients |
Locations
1010 Lakeland Square Ext
Ste A
Flowood, MS 39232
Phone (601) 981-1610
102 Riverview Dr
#A
Flowood, MS 39232
Phone (601) 981-1610
1010 Lakeland Square Ext
Ste B
Flowood, MS 39232
Phone (601) 936-0890
Interoperability endpoints
- mark.klein.p77@direct.aac.nextgenshare.com
- mklein26202@direct.acumenmd.com
- mark.klein.d1.p66@direct.aac.nextgenshare.com
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Nephrology Physician
- Flowood, MS
- NPI 1942576277
-
- Nephrology Physician
- Flowood, MS
- NPI 1528109972
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Magee, MS
- NPI 1205948049
Dialysis facility
-
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Brandon, MS
- NPI 1184146789
Dialysis facility
-
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Flowood, MS
- NPI 1497193023
Dialysis facility
-
- General Acute Care Hospital
- Magee, MS
- NPI 1679553994
-
- General Acute Care Hospital
- Jackson, MS
- NPI 1710909585
-
- General Acute Care Hospital
- Jackson, MS
- NPI 1306876065
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1161820800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779148800000",
"number": "1376628529",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "102 RIVERVIEW DR STE A",
"city": "FLOWOOD",
"state": "MS",
"postal_code": "392328908",
"telephone_number": "601-981-1610",
"fax_number": "601-366-2887"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "102 RIVERVIEW DR STE A",
"city": "FLOWOOD",
"state": "MS",
"postal_code": "392328908",
"telephone_number": "601-981-1610",
"fax_number": "601-366-2887"
}
],
"practiceLocations": [
{
"address_1": "1010 Lakeland Square Ext Ste B",
"address_purpose": "LOCATION",
"city": "Flowood",
"state": "MS",
"postal_code": "392327607",
"country_code": "US",
"telephone_number": "601-936-0890",
"fax_number": "601-936-0891",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KLEIN",
"first_name": "MARK",
"middle_name": "N.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-10-26",
"last_updated": "2026-05-19",
"certification_date": "2026-05-19",
"status": "A"
},
"taxonomies": [
{
"code": "207RN0300X",
"taxonomy_group": "",
"desc": "Internal Medicine, Nephrology",
"state": "MS",
"license": "15985",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "000125529",
"state": "MS"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LICENSE",
"identifier": "15985",
"state": "MS"
}
],
"endpoints": [],
"other_names": []
}Other providers in Flowood, MS
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.