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NEPHROLOGY AND HYPERTENSION SPECIALISTS, LLC
NPI 1730127200
Internal Medicine - Nephrology in Fenton, MO

Active since June 04, 2006
1011 BOWLES AVE STE 220, FENTON, MO 63026(636) 681-3030(636) 326-1545 Get Directions Write a Review

NPPES record last updated: January 22, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 15, 2022, Aug 22, 2020 (2 updates tracked since 2020).

About Nephrology And Hypertension Specialists, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NEPHROLOGY AND HYPERTENSION SPECIALISTS, LLC (NPI 1730127200) is a healthcare organization registered as a nephrology in Fenton, Missouri and active in the NPI registry since June 2006. The organization lists John Mellas, Partner, as its authorized official.

NPPES Registry Identity

NPI1730127200
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameNEPHROLOGY AND HYPERTENSION SPECIALISTS, LLC
Location Address1011 BOWLES AVE STE 220Fenton, MO 63026-2384
Mailing Address1011 Bowles Ave Ste 220Fenton, MO 63026-2384 · (636) 681-3030 · Fax (636) 326-1545
Phone(636) 681-3030
Fax(636) 326-1545
Organization SubpartNo
Authorized OfficialJohn MellasPartner · (314) 842-9669
Enumeration DateJune 4, 2006
Last NPPES UpdateJanuary 22, 20242 updates tracked since enumeration
NPPES CertifiedJanuary 22, 2024
✔ NPI 1730127200 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1011 BOWLES AVE STE 220, Fenton, MO 63026
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nephrology And Hypertension Specialists, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Nephrology And Hypertension Specialists, LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

John Mellas, MD
Nephrology
NPI 1497712079
1011 BOWLES AVE STE 220
Fenton, MO 63026
(636) 681-3030
✔ PECOS✔ Accepts MedicareSame address
Alejandro Alvarez, MD
Nephrology
NPI 1508846304
1 BARNES JEWISH HOSPITAL PLZ DIV IM NEPHROLOGY
Saint Louis, MO 63110
(314) 362-7603
✔ PECOS✔ Accepts Medicare9.9 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nephrology And Hypertension Specialists, LLC's NPI number?

The NPI number for Nephrology And Hypertension Specialists, LLC is 1730127200. It was assigned to this organization in the NPPES registry on June 4, 2006.

Where is Nephrology And Hypertension Specialists, LLC located?

Nephrology And Hypertension Specialists, LLC is located at 1011 Bowles Ave Ste 220, Fenton, MO 63026. The listed phone number is (636) 681-3030.

What is Nephrology And Hypertension Specialists, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Nephrology And Hypertension Specialists, LLC enrolled in Medicare?

Yes. Nephrology And Hypertension Specialists, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nephrology And Hypertension Specialists, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Nephrology, reassign their Medicare billing to Nephrology And Hypertension Specialists, LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Nephrology And Hypertension Specialists, LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Nephrology And Hypertension Specialists, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Nephrology And Hypertension Specialists, LLC was last updated on January 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.