What is Marilyn Horton's specialty?

Marilyn Horton (NPI 1104851906) is a Medicare-billing provider whose primary specialty is Internal Medicine in Dallas, TX.

Where does Marilyn Horton practice?

Marilyn Horton practices in Dallas, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1104851906.

How much does Medicare pay Marilyn Horton?

Marilyn Horton (NPI 1104851906) received approximately $9K in total Medicare Part B payments, serving 78 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1104851906

Marilyn HortonM.D.

Internal MedicineDallas, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

130

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 6,183 Internal Medicine providers in TX — bottom quintile (cohort median 673).

PRESCRIBING · PART D · 2024

Total Rx claims

2,623

Beneficiaries

—

Total drug cost

$214K

Distinct drugs

Brand share

13.7%

Top prescribed drugs

Atorvastatin Calcium376 claims

Amlodipine Besylate167 claims

Losartan Potassium151 claims

Lisinopril107 claims

Metformin Hcl106 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$16

Payment records

By payment type

Food and Beverage$16

Top paying entities

Food and Beverage$16

REFERRAL NETWORK

Where Marilyn Horton'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). 5 inbound referrers · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	146	224
Swdic Imaging Center Partnership, Llp Independent Diagnostic Testing Facility (IDTF) · Dallas, TX	58	83
TEXAS HEALTH PRESBYTERIAN HOSPITAL DALLAS	57	100
Laboratory Corporation Of America Clinical Laboratory · Dallas, TX	25	47
Bradley Casolo Diagnostic Radiology · Miami, FL	16	20

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	176	313
Swdic Imaging Center Partnership, Llp Independent Diagnostic Testing Facility (IDTF) · Dallas, TX	94	154
TEXAS HEALTH PRESBYTERIAN HOSPITAL DALLAS	87	205
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Irving, TX	74	157
Christina Myint Internal Medicine · Dallas, TX	59	93
Rodney Bowman Nuclear Medicine · Fort Worth, TX	26	35
Laboratory Corporation Of America Clinical Laboratory · Dallas, TX	26	47
Patrick Barr Nuclear Medicine · Fort Worth, TX	22	33
Shannon Amonette Diagnostic Radiology · Fort Worth, TX	20	32
Katherine Hall Diagnostic Radiology · Fort Worth, TX	19	24
Bradley Casolo Diagnostic Radiology · Miami, FL	19	35
CARELOCK, TED	14	20

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