Michael Keene Demack, PA
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 1,951
- Industry payments
- $25
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3240 N Garey Ave, Pomona, CA 91767
- Practice phone
- Call (877) 201-7377
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prime One Care
Pomona, California
Find Michael Demack's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Michael Keene Demack is a physician assistant in Pomona, California
Michael Demack practices at Prime One Care in Pomona, California.
Michael Demack's NPI, 1043347313, was assigned on February 27, 2007. Michael Demack holds Arizona license 6422.
- NPI
- 1043347313NPI Registry (opens in a new tab)
- NPI enumeration date
- February 27, 2007
- NPI status
- Active
- Practice phone
- (877) 201-7377
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Michael Keene Demack practices at Prime One Care in Pomona, California
Michael Demack's primary practice is Prime One Care, at 3240 N Garey Ave, Pomona, CA 91767 in Los Angeles County. The practice phone is (877) 201-7377.
- Prime One Care3240 N Garey Ave, Pomona, CA 91767 · Los Angeles CountyPhone(877) 201-7377
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Michael Keene Demack is affiliated with 2 sites of care and 1 medical group
Michael Demack's primary practice is Prime One Care in Pomona, California. The medical group on file is Ponderosa Family Care. Dmand AI also links Michael Demack to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Michael Keene Demack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Demack practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prime One Care | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael Keene Demack is one of 2,381 physician assistants in California
Medical is Michael Demack's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Dmand AI has Michael Demack's licenses on file in 2 states: Arizona and California.
Specialties and state licenses
- Medical physician assistant, ArizonaPrimary
- Family medicine, California
Physician assistants near Michael Demack
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
Michael Keene Demack treated 16 Medicare patients in 2024, average age 77
CMS counts 16 Medicare patients who saw Michael Demack in 2024. 75% of them have high cholesterol, and 69% have high blood pressure. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Demack's median patient age at 74, with 42% women.
Chronic conditions among Michael Demack's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
Share of Medicare patients with each condition. A patient can have several.
Michael Demack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael Keene Demack wrote 1,951 Medicare Part D claims in 2024
In 2024, Michael Demack wrote 1,951 Medicare Part D claims for 219 patients. 91% of them were for generic drugs.
Michael Demack's Part D claims by kind of drug, 2024
- Generic1,785 claims91%
- Brand-name and other166 claims9%
Drug classes CMS tracks in Michael Demack's Part D claims, 2024
- Opioids9%175 of 1,951 claims
- Antibiotics4%78 of 1,951 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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Michael Keene Demack received $25 in industry payments in 2025
CMS Open Payments shows 1 general payment to Michael Demack from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $25.
Companies that paid Michael Demack the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Michael Keene Demack's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Michael Keene Demack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael Keene Demack's NPI number?
Michael Keene Demack's NPI number is 1043347313. It was assigned on February 27, 2007, and it is active in the NPI Registry.
What does Michael Keene Demack specialize in?
Michael Keene Demack is a physician assistant in Pomona, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Michael Keene Demack practice?
Michael Demack practices at 3240 N Garey Ave, Pomona, CA 91767. Michael Demack's primary practice is Prime One Care in Pomona, California. Dmand AI also links Michael Demack to 1 group practice or clinic.
What is Michael Keene Demack's office phone number?
The practice phone on file for Michael Demack is (877) 201-7377.
What is Michael Keene Demack's medical license number?
Michael Demack holds Arizona license 6422, one of the licenses on file in 2 states.
Which states has Michael Keene Demack been licensed in?
Dmand AI has state licenses on file for Michael Demack in Arizona and California.
What medical group is Michael Keene Demack part of?
Michael Demack is linked to Ponderosa Family Care.
How many Medicare patients does Michael Keene Demack see?
CMS counts 16 Medicare patients who saw Michael Demack in 2024, with an average age of 77.
Has Michael Keene Demack received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Michael Demack from 1 company from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has Michael Keene Demack been practicing?
Michael Demack graduated from medical school in 1999, 27 years ago.
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