Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Alyssa Taylor Dennis , MD

Emergency Medicine β€’ Fallon, NV

Active NPI 1134879455 Individual Practitioner Female Practitioner
Practice location in NPPES

801 E Williams Ave
Fallon, NV 894063052

Call 7754233151 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

801 E Williams Ave

Fallon, NV 894063052

Telephone 7754233151
Organization at the Same NPPES Address or Phone
Family Medical Center Facility NPI 1730130188

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Boca Raton, FL. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $70.03 in 2023

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2023.

Guide: How to read an Open Payments record

NPI first issued

2022

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Dennis has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Dennis as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Fallon and Nevada

4 active clinicians are listed under Emergency Medicine with a practice address in Fallon, NV (585 in Nevada).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2023

Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $70.03.

Manufacturer Payment Nature Product Type Amount ($)
Medtronic, Inc.
Food and Beverage
In-kind items and services
SIGNIA General $70.03

Source: CMS Open Payments, program year 2023, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-07-15
Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

License # reported to NPPES NV 29894

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Nevada State Medical Licensing Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

ORDER AND REFERRING ONLY - EMERGENCY MEDICINE

Medicare Enrollment ID

I20240213000899

Enrollment State Jurisdiction

SC

PECOS Control ID

3870936297

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Secondary Practice Locations

800 Meadows Rd

Boca Raton, FL 334862304

Phone: 5619554600

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

9 listed
Dr. Brent Aikin , DO

Family Medicine

NPI 1689643611

Doctor of Osteopathic Medicine (D.O.)

Dr. Terry Brown , MD

Radiology - Diagnostic Radiology

NPI 1689655888

Doctor of Medicine (M.D.)

Dr. Melissa Coombs , MD

Emergency Medicine

NPI 1043448558

Doctor of Medicine (M.D.)

Dr. Christopher Degn , MD

Radiology - Diagnostic Radiology

NPI 1669455028

Doctor of Medicine (M.D.)

Dr. Vidur Mahadeva , MD

Internal Medicine

NPI 1760451769

Doctor of Medicine (M.D.)

Sharon Maxwell , PA-C, MPAS

Physician Assistant

NPI 1144200304

Physician Assistant (Certified), MPAS

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
πŸ“
Updated Practice Location July 15, 2026

Registered at 801 E WILLIAMS AVE, FALLON, NV 894063052 (Tel: 7754233151)

πŸ“
Updated Business Mailing Address July 15, 2026

Registered at 4637 CHABOT DR STE 104, PLEASANTON, CA 945882749

🏒
Secondary Practice Location Registered July 15, 2026

Additional practice office at 800 Meadows Rd, Boca Raton, FL 334862304

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 15, 2026

Emergency Medicine (license number reported to NPPES: NV 29894)

βœ…
NPI Profile Active March 28, 2022

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) March 28, 2022

Registered at 800 MEADOWS RD, BOCA RATON, FL 334862304 (Tel: 5619554600)

πŸ“
Business Mailing Address (Initial Record) March 28, 2022

Registered at 800 MEADOWS RD, BOCA RATON, FL 334862304

πŸ‘€
Provider Name / Credentials (Initial Record) March 28, 2022

Recorded as ALYSSA DENNIS, MD

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 28, 2022

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration March 28, 2022

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1134879455
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 28, 2022
Last Update: July 15, 2026
Sole Proprietor: No

Other Emergency Medicine Providers in Fallon

Mailing Address

4637 Chabot Dr Ste 104

Pleasanton, CA 945882749

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.