What is Nathan Chamberlain's specialty?

Nathan Chamberlain (NPI 1134126246) is a Medicare-billing provider whose primary specialty is Nephrology in Chattanooga, TN.

Where does Nathan Chamberlain practice?

Nathan Chamberlain practices in Chattanooga, TN, based on the location reported in the CMS Medicare provider datasets for NPI 1134126246.

How much does Medicare pay Nathan Chamberlain?

Nathan Chamberlain (NPI 1134126246) received approximately $399K in total Medicare Part B payments, serving 1,196 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1134126246

Nathan ChamberlainM.D.

NephrologyChattanooga, TNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

4,721

Unique beneficiaries

—

Total services

8,127

Distinct HCPCS

Medicare payment

$394K

Peer benchmark

Total Medicare services vs. 164 Nephrology providers in TN — top quintile (cohort median 1,430).

PRESCRIBING · PART D · 2024

Total Rx claims

863

Beneficiaries

—

Total drug cost

$46K

Distinct drugs

Brand share

16.0%

Top prescribed drugs

Furosemide92 claims

Losartan Potassium84 claims

Amlodipine Besylate68 claims

Spironolactone55 claims

Carvedilol46 claims

QUALITY · MIPS · 2024

Final MIPS score

94.7

Quality

81.3

Cost

73.2

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.83%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$241

Payment records

By payment type

Food and Beverage$239

Education$2

Top paying entities

Food and Beverage$239

Education$2

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

Dialysis facility

Hospital

Hospital

Hospital

Inpatient rehabilitation facility

REFERRAL NETWORK

Where Nathan Chamberlain's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 131 inbound referrers · 247 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MEMORIAL HEALTH CARE SYSTEM INC.	435	3,686
Nilesh Patel Nephrology · Chattanooga, TN	231	1,012
RIMER, THOMAS	159	578
Mandeep Grewal Nephrology · Chattanooga, TN	156	651
Brant Holt Nephrology · Chattanooga, TN	141	471
George Watson Diagnostic Radiology · Chattanooga, TN	124	477
PIEZ, CHARLES	122	409
PARKRIDGE MEDICAL CENTER, INC.	120	433
SOLSTAS LAB PARTNERS GROUP LLC	106	239
William Rowlett Diagnostic Radiology · Chattanooga, TN	106	343
Stuart Ginther Nephrology · Chattanooga, TN	100	290
FRANKLIN, DONALD	88	331

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MEMORIAL HEALTH CARE SYSTEM INC.	406	3,849
SOLSTAS LAB PARTNERS GROUP LLC	270	633
Brant Holt Nephrology · Chattanooga, TN	166	632
Nilesh Patel Nephrology · Chattanooga, TN	162	814
CHATTANOOGA HAMILTON COUNTY HOSPITAL AUTHORITY	155	449
Mandeep Grewal Nephrology · Chattanooga, TN	148	563
GALPHIN, CLAUDE	147	669
Hans Yehnert Nephrology · Chattanooga, TN	144	517
James Hoback Internal Medicine · Chattanooga, TN	140	349
George Watson Diagnostic Radiology · Chattanooga, TN	122	454
John Bisese Diagnostic Radiology · Chattanooga, TN	120	343
Lindsay Crawford Nephrology · Chattanooga, TN	118	367

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events