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Garrett Demille

  • Phoenix, AZ
  • Nurse anesthetist
NPI1710856612PAC ID9032694906
Hospital affiliations
2
Medical groups
2
State license
1
Year NPI issued
2025
Practice address
18444 N 25th Ave, Phoenix, AZ 85023
Practice phone
Call (623) 537-5600
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

The Core Institute

Phoenix, Arizona

See all 5 affiliations

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Garrett Demille is a nurse anesthetist in Phoenix, Arizona

Garrett Demille practices at The Core Institute in Phoenix, Arizona.

Garrett Demille's NPI, 1710856612, was assigned on October 30, 2025. Garrett Demille holds Arizona license 12306313-3102.

NPI and contact details
NPI
1710856612NPI Registry (opens in a new tab)
Medicare PAC ID
9032694906
NPI enumeration date
October 30, 2025
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(623) 537-5600
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
27
Medical school graduation
2025

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Garrett Demille practices at The Core Institute in Phoenix, Arizona

Garrett Demille's primary practice is The Core Institute, at 18444 N 25th Ave, Phoenix, AZ 85023 in Maricopa County. The practice phone is (623) 537-5600.

  • The Core Institute
    18444 N 25th Ave, Phoenix, AZ 85023 · Maricopa CountyPhone(623) 537-5600

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Garrett Demille is affiliated with 3 sites of care and 2 medical groups

Garrett Demille's primary practice is The Core Institute in Phoenix, Arizona. Garrett Demille is also affiliated with Banner - University Medical Center Phoenix. The medical group on file is Guide Anesthesia (formerly Arizona Anesthesia Solutions). Dmand AI also links Garrett Demille to 1 more hospital and 1 medical group, each named with a free account.

The Core InstitutePhoenix, ArizonaPrimary
Banner - University Medical Center PhoenixAcute care hospital, Phoenix, AZGuide Anesthesia (formerly Arizona Anesthesia Solutions)Anesthesia and pain group, Brighton, MI1 hospitalName with a free account1 medical groupName with a free accountParent health systemName with a free account
See all 5 affiliations for Garrett Demille

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Garrett Demille's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Garrett Demille practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Core InstituteAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Garrett Demille is one of 975 nurse anesthetists in Arizona

Nurse anesthetist, certified registered is Garrett Demille's primary specialty in the NPI Registry, under taxonomy code 367500000X. Garrett Demille is licensed in Arizona.

Specialties and state licenses

  • Certified registered nurse anesthetist, ArizonaPrimaryLicense 12306313-3102 · taxonomy 367500000X

Nurse anesthetists near Garrett Demille

Counts of nurse anesthetists with a Dmand AI profile, by place and practice. Each opens the list.

975nurse anesthetists in Arizona259nurse anesthetists in Phoenix

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Garrett Demille's patients have a median age of 56

Across all payers, Dmand AI patient panel data puts Garrett Demille's median patient age at 56, with 63% women.

Garrett Demille's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women63%
  • Men25%

Source: Dmand AI Patient Panel Data

How Garrett Demille takes part in Medicare

Garrett Demille accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

Sources for Garrett Demille's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Garrett Demille

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Garrett Demille's NPI number?

Garrett Demille's NPI number is 1710856612. It was assigned on October 30, 2025, and it is active in the NPI Registry.

What does Garrett Demille specialize in?

Garrett Demille is a nurse anesthetist in Phoenix, Arizona. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).

Where does Garrett Demille practice?

Garrett Demille practices at 18444 N 25th Ave, Phoenix, AZ 85023. Garrett Demille's primary practice is The Core Institute in Phoenix, Arizona. Dmand AI also links Garrett Demille to 1 hospital and 1 medical group.

What is Garrett Demille's office phone number?

The practice phone on file for Garrett Demille is (623) 537-5600.

What is Garrett Demille's medical license number?

Garrett Demille holds Arizona license 12306313-3102.

Which hospitals is Garrett Demille affiliated with?

Garrett Demille is affiliated with Banner - University Medical Center Phoenix. Dmand AI links Garrett Demille to 1 more hospital.

What medical group is Garrett Demille part of?

Garrett Demille is linked to Guide Anesthesia (formerly Arizona Anesthesia Solutions). Dmand AI links Garrett Demille to 1 more medical group.

Does Garrett Demille accept Medicare?

Yes. CMS lists Garrett Demille as accepting Medicare assignment.

How long has Garrett Demille been practicing?

Garrett Demille graduated from medical school in 2025, 1 years ago.

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