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Dr. Aaron A Johnson , DO

Emergency Medicine โ€ข Nellis Afb, NV

Active NPI 1861885444 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

4700 Las Vegas Blvd N
Nellis Afb, NV 891916600

Call 7026532344 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

4700 Las Vegas Blvd N

Nellis Afb, NV 891916600

Telephone 7026532344
Organization at the Same NPPES Address or Phone
99th Medical Group, Nellis Afb Facility NPI 1740261122

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

CMS Doctors and Clinicians lists 3 distinct group names: Fremont Emergency Services Scherr Ltd; Hoover Emergency Physicians Llc; Shadow Emergency Physicians Pllc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

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

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2017

Medicare patients

69 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $8,389 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $6,262 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019โ€“2025.

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2015

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.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

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, CMS release of October 2, 2026; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

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, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Johnson 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. Johnson 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 Nellis Afb and Nevada

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 70% of clinicians listed under Emergency Medicine in Nellis Afb, NV (2024, 32 clinicians with data). Median for this group: 162. Middle half: 63 to 277.

Fewer Medicare Part B services than 90% of clinicians listed under Emergency Medicine in Nevada (2024, 371 clinicians with data). Median for this group: 338. Middle half: 184 to 507.

Medicare-allowed amount

A lower Medicare-allowed amount than 75% of clinicians listed under Emergency Medicine in Nellis Afb, NV (2024, 32 clinicians with data). Median for this group: $21,125. Middle half: $8,641 to $35,529.

A lower Medicare-allowed amount than 90% of clinicians listed under Emergency Medicine in Nevada (2024, 371 clinicians with data). Median for this group: $41,699. Middle half: $21,509 to $60,455.

Paid by Medicare

A lower Medicare payment amount than 70% of clinicians listed under Emergency Medicine in Nellis Afb, NV (2024, 32 clinicians with data). Median for this group: $16,426. Middle half: $6,246 to $27,431.

A lower Medicare payment amount than 90% of clinicians listed under Emergency Medicine in Nevada (2024, 371 clinicians with data). Median for this group: $32,495. Middle half: $16,459 to $47,240.

59 active clinicians are listed under Emergency Medicine with a practice address in Nellis Afb, NV (585 in Nevada).

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

Telehealth indicator in Nellis Afb

0% of these 59 clinicians have the CMS telehealth indicator.

61% of these 59 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2021โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99285 Emergency department visit with high level of medical decision making
34 33 $1782.00 $168.58
99284 Emergency department visit with moderate level of medical decision making
22 22 $1215.05 $116.55
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
12 12 $85.25 $7.80

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-12-27
Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

License # reported to NPPES NV DO2955

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.

Emergency Medicine

NUCC Taxonomy Code: 207P00000X

License # reported to NPPES NE 1892

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

PRACTITIONER - EMERGENCY MEDICINE

Medicare Enrollment ID

I20211112000111

Enrollment State Jurisdiction

NV

PECOS Control ID

9931452356

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.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Hoover Emergency Physicians Llc

901 Adams Blvd, Boulder City, NV 890052213

Phone: 9549395000

Shadow Emergency Physicians Pllc

620 Shadow Ln, Las Vegas, NV 891064119

Phone: 9549395000

Fremont Emergency Services Scherr Ltd

3186 S Maryland Pkwy, Las Vegas, NV 891092317

Phone: 7027318585

Clinicians Sharing This Practice Address or Phone

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

25 listed
Dr. Beau Baum , MD

Emergency Medicine

NPI 1285894204

Doctor of Medicine (M.D.)

Dr. Samuel Bergin , MD

Emergency Medicine

NPI 1528420890

Doctor of Medicine (M.D.)

Dr. Elizabeth Chen , MD

Emergency Medicine

NPI 1922493758

Doctor of Medicine (M.D.)

Dr. Christopher Clark , DO

Emergency Medicine

NPI 1639353493

Doctor of Osteopathic Medicine (D.O.)

Dr. Jason David , MD

Emergency Medicine

NPI 1619473204

Doctor of Medicine (M.D.)

Dr. Mackenzie Gabler , MD

Emergency Medicine

NPI 1811317860

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

18 Historical Events
๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 07, 2023

Emergency Medicine (license number reported to NPPES: NE 1892)

๐Ÿ“
Updated Practice Location July 13, 2021

Registered at 4700 LAS VEGAS BLVD N, NELLIS AFB, NV 891916600 (Tel: 7026532344)

๐Ÿ“
Updated Business Mailing Address July 13, 2021

Registered at 4700 LAS VEGAS BLVD N, NELLIS AFB, NV 891916600 (Tel: 7026532344)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 13, 2021

Emergency Medicine (license number reported to NPPES: NV DO2955)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 17, 2018

Military Health Care Provider

โœ…
NPI Profile Active August 29, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location August 29, 2017

Registered at 1800 W CHARLESTON BLVD, LAS VEGAS, NV 891022329 (Tel: 7023832000)

๐Ÿ“
Updated Business Mailing Address August 29, 2017

Registered at 2709 SHADY POND WAY, LAS VEGAS, NV 891170403 (Tel: (801) 471-6368)

๐Ÿ‘ค
Provider Name / Credentials Updated August 29, 2017

Recorded as AARON JOHNSON, DO

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 29, 2017

Military Health Care Provider

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 29, 2017

Surgery (license number reported to NPPES: NV SL1251)

๐Ÿ“
Updated Business Mailing Address March 17, 2017

Registered at 719 SW BURLINGAME CIR, TROUTDALE, OR 970603152 (Tel: 8014716368)

โœ…
NPI Profile Active March 06, 2015

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) March 06, 2015

Registered at 18175 TUPPER RD, SANDY, OR 970557360 (Tel: 8014716368)

๐Ÿ“
Business Mailing Address (Initial Record) March 06, 2015

Registered at 18175 TUPPER RD, SANDY, OR 970557360 (Tel: 8014716368)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) March 06, 2015

Recorded as AARON JOHNSON

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 06, 2015

Student in an Organized Health Care Education/Training Program

๐ŸŸข
Initial NPI Registration & Enumeration March 06, 2015

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1861885444
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 06, 2015
Last Update: December 27, 2024
Sole Proprietor: No

Other Emergency Medicine Providers in Nellis Afb

All Emergency Medicine Providers in Nellis Afb

Mailing Address

4700 Las Vegas Blvd N

Nellis Afb, NV 891916600

Phone: 7026532344

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.