Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GRANT MICHAEL WARMOUTH MD
NPI 1376757344
Psychiatry & Neurology - Clinical Neurophysiology in Reno, NV

Q: What is Grant Warmouth's NPI number?

The NPI number for Grant Warmouth is 1376757344. It was assigned to this individual provider in the NPPES registry on May 9, 2007.

Q: What is Grant Warmouth's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Clinical Neurophysiology, with taxonomy code 2084N0600X.

Q: When was this NPI record last updated?

The NPPES record for Grant Warmouth was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 09, 2007PECOS Enrolled

75/100

CMS Quality Rating

13377 TRAVERTINE LN, RENO, NV 89511(303) 776-5298 Get Directions Write a Review

NPPES record last updated: August 3, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 3, 2026, Feb 26, 2025, Jun 18, 2024 and 4 more (7 updates tracked since 2017).

On this page

About Dr. Grant Michael Warmouth Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GRANT MICHAEL WARMOUTH MD (NPI 1376757344) is an individual clinical neurophysiology provider in Reno, Nevada, licensed in Colorado (DR.0051735) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Baptist Medical Center, and maintains a secondary practice location in Cheyenne.

NPPES Registry Identity

NPI1376757344

Entity TypeIndividualMale

Primary Taxonomy2084N0600X

Provider Legal NameDR. GRANT MICHAEL WARMOUTHCredential: MD

Location Address13377 TRAVERTINE LNReno, NV 89511-5946

Mailing Address1908 Thomes Ave Ste 12550Cheyenne, WY 82001-3527 · (303) 776-5298 · Fax (303) 682-2785

Phone(303) 776-5298

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 2003

Enumeration DateMay 9, 2007

Last NPPES UpdateAugust 3, 20267 updates tracked since enumeration

NPPES CertifiedAugust 3, 2026

✔ NPI 1376757344 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Clinical NeurophysiologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0600X

Licenses✔ Licensed in CO · DR.0051735✔ Licensed in NM · TM2013-0690

Definition

Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS).

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 2007011386 (MO)

13377 TRAVERTINE LN, Reno, NV 89511

Open in Google Maps ↗

Secondary Practice Location 1

Location 11908 Thomes Ave Ste 12550Cheyenne, WY 82001-3527 · Phone (303) 776-5298

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Grant Michael Warmouth Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476687658

PECOS Enrollment IDI20240207002208

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure) G0453

Continuous intraoperative neurophysiology monitoring is a service where a specialist oversees your nervous system's function during surgery, from a nearby or remote location. This is done every 15 minutes and is focused solely on you. It helps ensure surgical safety by identifying any potential nervous system changes promptly.

1,128 services422 patients

Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study 95870

This procedure, known as an electromyography (EMG), involves using a needle to measure electrical activity in your muscles. It can help diagnose conditions affecting nerves or muscles. It's a limited study, meaning only specific muscles in the arm, leg, trunk, or head are examined.

458 services212 patients

Placement of skin electrodes and measurement of stimulated sites on arms and legs 95938

This procedure involves placing small pads (electrodes) on your arms and legs. These electrodes send gentle electric signals to specific areas, and the responses are measured. This helps assess the health of your nerves and muscles.

448 services444 patients

Needle measurement of electrical activity in arm or leg muscles, 2 extremities 95861

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. It helps diagnose conditions affecting nerves or muscles. It's generally painless, though you may feel some discomfort.

201 services198 patients

Placement of skin electrodes and measurement of central motor stimulation in arms and legs 95939

This procedure involves placing small patches (electrodes) on your skin over your arms and legs. These electrodes send harmless electrical signals to your muscles. The response is measured to assess the health and function of your nerves and muscles.

168 services168 patients

Needle measurement of electrical activity in muscles on both sides of body 95868

This procedure, known as electromyography, involves inserting tiny needles into muscles to measure their electrical activity. It helps identify muscle or nerve disorders. It's performed on both sides of the body for comparison. It's generally safe and may cause minimal discomfort.

86 services86 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baptist Medical Center

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450058

Location111 Dallas StreetSan Antonio, TX 78205 · Bexar County

Emergency services Birthing friendly

Methodist Hospital For Surgery

Acute Care Hospitals · Addison, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number670073

Location17101 Dallas ParkwayAddison, TX 75001 · Dallas County

Emergency services

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Grant Warmouth's NPI number?

The NPI number for Grant Warmouth is 1376757344. It was assigned to this individual provider in the NPPES registry on May 9, 2007.

Where is Grant Warmouth located?

Grant Warmouth practices at 13377 Travertine Ln, Reno, NV 89511. The listed phone number is (303) 776-5298.

What is Grant Warmouth's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Clinical Neurophysiology, with taxonomy code 2084N0600X.

Is Grant Warmouth enrolled in Medicare?

Yes. Grant Warmouth is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Grant Warmouth accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Grant Warmouth as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Grant Warmouth affiliated with any hospitals?

According to CMS data, Grant Warmouth is affiliated with Baptist Medical Center and Methodist Hospital For Surgery.

When was this NPI record last updated?

The NPPES record for Grant Warmouth was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.