Day Keller, PA-C

  • Phoenix, AZ
  • Physician assistant
NPI1881143410
Medicare patients, 2024
156
Part D claims, 2024
233
Hospital affiliations
1
Medical groups
7
State license
1
Practice address
19829 North 27th Avenue, Phoenix, AZ 85027
Practice phone
Call (623) 879-6100
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

HonorHealth Deer Valley Medical Center

Hospital · Phoenix, Arizona

See all 8 affiliations

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Day Keller is a physician assistant in Phoenix, Arizona

Day Keller practices at HonorHealth Deer Valley Medical Center in Phoenix, Arizona, part of HonorHealth.

Day Keller's NPI, 1881143410, was assigned on September 23, 2016. Day Keller holds Arizona license 6487.

NPI and contact details
NPI enumeration date
September 23, 2016
NPI status
Active
Practice phone
(623) 879-6100
Professional email
Get email
Personal email
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Mobile number
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Sex
Female

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

Day Keller practices at HonorHealth Deer Valley Medical Center in Phoenix, Arizona

Day Keller's primary practice is HonorHealth Deer Valley Medical Center, at 19829 North 27th Avenue, Phoenix, AZ 85027 in Maricopa County. The practice phone is (623) 879-6100.

Source: Dmand AI Affiliation Data

Day Keller is affiliated with 1 site of care and 7 medical groups

Day Keller's primary practice is HonorHealth Deer Valley Medical Center in Phoenix, Arizona, part of HonorHealth. The medical group on file is HonorHealth Medical Group. Dmand AI also links Day Keller to 6 more medical groups, each named with a free account.

See all 8 affiliations for Day Keller

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Day Keller's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Day Keller practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
HonorHealth Deer Valley Medical CenterAvailable with a free account
+6 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Day Keller is one of 2,965 physician assistants in Arizona

Physician assistant is Day Keller's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Day Keller is licensed in Arizona.

Specialties and state licenses

  • Physician assistant, ArizonaPrimaryLicense 6487 · taxonomy 363A00000X

Physician assistants near Day Keller

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

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

Day Keller treated 156 Medicare patients in 2024, average age 71

CMS counts 156 Medicare patients who saw Day Keller in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Day Keller's median patient age at 40, with 56% women.

Medicare patients, 2024156
Average age71
Average risk score1.32
Also on Medicaid15%

Day Keller's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Day Keller's Medicare patients by sex, 2024

  • Women8454%
  • Men7246%

Chronic conditions among Day Keller's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure71%
  3. Arthritis49%
  4. Ischemic heart disease33%
  5. Anxiety30%
  6. Diabetes29%
  7. Chronic kidney disease28%
  8. Mood disorders24%

Share of Medicare patients with each condition. A patient can have several.

Day Keller's patients across all payers

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

Patient panel by age, all payers

Median age 40

Patient panel by sex, all payers

  • Women56%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Day Keller wrote 233 Medicare Part D claims in 2024

In 2024, Day Keller wrote 233 Medicare Part D claims for 141 patients. 97% of them were for generic drugs.

Part D claims, 2024233
Part D patients141

Day Keller's Part D claims by kind of drug, 2024

  • Generic226 claims97%
  • Brand-name and other7 claims3%

Drug classes CMS tracks in Day Keller's Part D claims, 2024

  • Opioids13%30 of 233 claims
  • Antibiotics34%80 of 233 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Sources for Day Keller'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (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 Day Keller

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

What is Day Keller's NPI number?

Day Keller's NPI number is 1881143410. It was assigned on September 23, 2016, and it is active in the NPI Registry.

What does Day Keller specialize in?

Day Keller is a physician assistant in Phoenix, Arizona. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Day Keller practice?

Day Keller practices at 19829 North 27th Avenue, Phoenix, AZ 85027. Day Keller's primary practice is HonorHealth Deer Valley Medical Center in Phoenix, Arizona, part of HonorHealth. Dmand AI also links Day Keller to 6 medical groups.

What is Day Keller's office phone number?

The practice phone on file for Day Keller is (623) 879-6100.

What is Day Keller's medical license number?

Day Keller holds Arizona license 6487.

Which hospitals is Day Keller affiliated with?

Day Keller practices at HonorHealth Deer Valley Medical Center in Phoenix, Arizona.

What medical group is Day Keller part of?

Day Keller is linked to HonorHealth Medical Group. Dmand AI links Day Keller to 6 more medical groups.

How many Medicare patients does Day Keller see?

CMS counts 156 Medicare patients who saw Day Keller in 2024, with an average age of 71.

How long has Day Keller been practicing?

Day Keller's NPI was assigned in 2016.

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