What is Nancy Hernandez's specialty?

Nancy Hernandez (NPI 1831305879) is a Medicare-billing provider whose primary specialty is Nephrology in Fullerton, CA.

Where does Nancy Hernandez practice?

Nancy Hernandez practices in Fullerton, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1831305879.

How much does Medicare pay Nancy Hernandez?

Nancy Hernandez (NPI 1831305879) received approximately $253K in total Medicare Part B payments, serving 483 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1831305879

Nancy HernandezDO

NephrologyFullerton, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

932

Unique beneficiaries

—

Total services

2,870

Distinct HCPCS

Medicare payment

$249K

Peer benchmark

Total Medicare services vs. 985 Nephrology providers in CA — top quintile (cohort median 1,482).

PRESCRIBING · PART D · 2024

Total Rx claims

1,798

Beneficiaries

—

Total drug cost

$250K

Distinct drugs

Brand share

20.6%

Top prescribed drugs

Calcitriol159 claims

Allopurinol124 claims

Sevelamer Carbonate101 claims

Parenteral Amino Acid 20% No.199 claims

Furosemide98 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$198

Payment records

By payment type

Food and Beverage$198

Top paying entities

Food and Beverage$198

REFERRAL NETWORK

Where Nancy Hernandez'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). 63 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST JUDE HOSPITAL INC	127	491
Danh Nguyen Diagnostic Radiology · Riverside, CA	98	193
Bradley Jackson Diagnostic Radiology · Fullerton, CA	82	195
NPI 1255335535	73	351
Arman Forouzannia Diagnostic Radiology · Lynnwood, WA	60	131
Hao Ngo Diagnostic Radiology · Fullerton, CA	60	141
Victor Lee Pathology · Oceanside, CA	58	158
Unilab Corporation Clinical Laboratory · West Hills, CA	55	219
Ramesh Rathod Interventional Cardiology · Fullerton, CA	50	133
Samuel Maxwell Diagnostic Radiology · Fullerton, CA	50	98
Pauline Ho Infectious Disease · Placentia, CA	47	150
Lutfi Sayyur Internal Medicine · Fullerton, CA	43	160

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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