SANDRA L GADSON MD
NPI 1841297348
Internal Medicine - Nephrology in Merrillville, IN

Q: What is Sandra Gadson's NPI number?

The NPI number for Sandra Gadson is 1841297348. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Q: What is Sandra Gadson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Sandra Gadson was last updated on May 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since June 30, 2005PECOS Enrolled

90 W 86TH AVE, MERRILLVILLE, IN 46410(219) 791-1555(219) 791-1560 Get Directions Write a Review

NPPES record last updated: May 31, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 13, 2020, Jul 11, 2017 (2 updates tracked since 2017).

On this page

About Sandra L Gadson Md NPPES

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

SANDRA L GADSON MD (NPI 1841297348) is an individual nephrology provider in Merrillville, Indiana, licensed in Indiana (10129625A) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841297348

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameSANDRA L GADSONCredential: MD

Location Address90 W 86TH AVEMerrillville, IN 46410-7086

Mailing Address120 W 22nd St Ste 200Oak Brook, IL 60523-1563 · (630) 575-5000

Phone(219) 791-1555

Fax(219) 791-1560

Sole ProprietorNo

Enumeration DateJune 30, 2005

Last NPPES UpdateMay 31, 20222 updates tracked since enumeration

NPPES CertifiedMay 31, 2022

✔ NPI 1841297348 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in IN · 10129625A✔ Licensed in IL · 036058441

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.

90 W 86TH AVE, Merrillville, IN 46410

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Other Identifiers 3

Medicaid100360450BIN

Other000000095599IN · Anthem Provider Number

Other090001077IL · Bcbs Illinois

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sandra L Gadson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sandra Gadson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Nephrology Associates Of Northern Illinois, Ltd.

40 mi

Nephrology

120 W 22ND ST STE 200
Oak Brook, IL 60523

Reassigned Medicare billing, Illinois enrollment
161 clinicians in this Medicare group

NPI 1124069182 (630) 575-5000

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Principal care management services for a single high-risk disease, first 30 minutes of clinical staff time directed by health care professional, per calendar month 99426

Principal care management services focus on managing a single high-risk disease. This involves a health care professional directing clinical staff for the first 30 minutes each month. The aim is to monitor your health, coordinate care, and provide necessary support for your disease management.

134 services15 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

43 services27 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

39 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46410 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$122.49 typical visit price

range $53.07 – $161.76

Typical copayment $30.62 (range $13.26 – $40.44)

Most-billed visit code 99204

Established Patient

$94.22 typical visit price

range $16.93 – $132.22

Typical copayment $23.55 (range $4.23 – $33.05)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TIMOTHY MICHAEL CHOW

Internal Medicine (Nephrology)

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (291) 791-1555

KATRINA E WRIGHT MD

Internal Medicine (Nephrology)

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

CINDY CHAPMAN NURSE PRACTITIONER

Nurse Practitioner (Family)

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

ALI KHEIRBEK MD

Internal Medicine (Nephrology)

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

KATHLEEN WALLACE APN

Nurse Practitioner

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

DR. KEVIN ANDRE MYRIE M.D,

Internal Medicine (Nephrology)

90 W 86TH AVE, NEPHROLOGY ASSOCIATES OF NORTHERN INDIANA
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

YVES FRANTZ BRIGNOL MBA/HA, CMC

Internal Medicine (Nephrology)

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

DAVID CURTIS PARRISH

Nurse Practitioner (Family)

90 W 86TH AVE
MERRILLVILLE, IN 46410

Lake County (219) 791-1555

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 Sandra Gadson's NPI number?

The NPI number for Sandra Gadson is 1841297348. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Where is Sandra Gadson located?

Sandra Gadson practices at 90 W 86th Ave, Merrillville, IN 46410. The listed phone number is (219) 791-1555.

What is Sandra Gadson's specialty?

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

Is Sandra Gadson enrolled in Medicare?

Yes. Sandra Gadson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sandra Gadson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Gadson reassigns Medicare benefits to Nephrology Associates Of Northern Illinois, Ltd. (Oak Brook, IL). The 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 Sandra Gadson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sandra Gadson accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Sandra Gadson 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 Sandra Gadson was last updated on May 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.