Derek Max Downing, DDS
- Part D claims, 2026
- 28
- Industry payments
- $21
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 32897 Western Hills Dr, Winchester, CA 92596
- Practice phone
- Call (951) 335-5169
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dental Office Of Winchester
Dental practice · Winchester, California
Find Derek Downing'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.
Derek Max Downing is a dentist in Lawton, Oklahoma
Derek Downing practices at Dental Office Of Winchester in Winchester, California.
Derek Downing's NPI, 1881388924, was assigned on June 2, 2023. Derek Downing holds California license DDS111399.
- NPI
- 1881388924NPI Registry (opens in a new tab)
- NPI enumeration date
- June 2, 2023
- NPI status
- Active
- Practice phone
- (951) 335-5169
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Derek Max Downing practices in Winchester and Lawton
Derek Downing's primary practice is Dental Office of Winchester, at 32897 Western Hills Dr, Winchester, CA 92596. The practice phone is (951) 335-5169. The NPI Registry lists Derek Downing's practice address as 916 SW 38th St, Lawton, OK 73505.
- Dental Office of WinchesterPrimary32897 Western Hills Dr, Winchester, CA 92596Phone(951) 335-5169
- NPI Registry address916 SW 38th St, Lawton, OK 73505 · Comanche County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Derek Max Downing is affiliated with 1 site of care and 1 medical group
Derek Downing's primary practice is Dental Office Of Winchester in Winchester, California. Dmand AI also links Derek Downing to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Derek Max Downing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Derek Downing practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dental Office Of Winchester | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Derek Max Downing is one of 472 dentists in Oklahoma
Dentist is Derek Downing's primary specialty in the NPI Registry, under taxonomy code 122300000X. Dmand AI has Derek Downing's licenses on file in 2 states: California and Oklahoma.
Specialties and state licenses
- Dentist, CaliforniaPrimary
- General practice dentistry, Oklahoma
Dentists near Derek Downing
Counts of dentists 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
Derek Max Downing's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Derek Downing's median patient age at 69, with 0% women.
Derek Downing's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Derek Max Downing wrote 28 Medicare Part D claims in 2026
In 2026, Derek Downing wrote 28 Medicare Part D claims for 26 patients. 96% of them were for generic drugs.
Derek Downing's Part D claims by kind of drug, 2026
- Generic27 claims96%
- Brand-name and other1 claims4%
Drug classes CMS tracks in Derek Downing's Part D claims, 2026
- Antibiotics89%25 of 28 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), 2026 data
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Derek Max Downing received $21 in industry payments in 2025
CMS Open Payments shows 1 general payment to Derek Downing from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch Health Americas, Inc. paid the most, $21.
Companies that paid Derek Downing 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 Derek Max Downing'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Derek Max Downing
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Derek Max Downing's NPI number?
Derek Max Downing's NPI number is 1881388924. It was assigned on June 2, 2023, and it is active in the NPI Registry.
What does Derek Max Downing specialize in?
Derek Max Downing is a dentist in Lawton, Oklahoma. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does Derek Max Downing practice?
Derek Downing practices at 32897 Western Hills Dr, Winchester, CA 92596. Derek Downing also practices at 916 SW 38th St, Lawton, OK 73505. Derek Downing's primary practice is Dental Office Of Winchester in Winchester, California. Dmand AI also links Derek Downing to 1 medical group, and a free account names each one.
What is Derek Max Downing's office phone number?
The practice phone on file for Derek Downing is (951) 335-5169. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Derek Max Downing's email address?
Dmand AI checks professional and personal email addresses for Derek Downing through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Derek Max Downing's medical license number?
Derek Downing holds California license DDS111399, one of the licenses on file in 2 states.
Which states has Derek Max Downing been licensed in?
Dmand AI has state licenses on file for Derek Downing in California and Oklahoma.
What medical group is Derek Max Downing part of?
Dmand AI links Derek Downing to 1 medical group. A free account names the group, with the clinicians and leaders there.
Has Derek Max Downing received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Derek Downing from 1 company from 2025 to 2025. The largest total came from Bausch Health Americas, Inc.
How long has Derek Max Downing been practicing?
Derek Downing's NPI was assigned in 2023.
What EHR does Derek Max Downing's practice use?
Dmand AI tracks the EHR system at Dental Office Of Winchester and at 1 medical group. The vendor and product are available with a free Dmand AI account.
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