Matthew Duff
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 1,787
- Hospital affiliations
- 1
- Industry payments
- $65
- Medical groups
- 3
- Practice address
- 245 Terracina Blvd, Redlands, CA 92373
- Practice phone
- Call (909) 307-0900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Charms Property Incorporated
Redlands, California
Find Matthew Duff'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.
Matthew Duff is a family nurse practitioner in Redlands, California
Matthew Duff practices at Charms Property Incorporated in Redlands, California.
Matthew Duff's NPI, 1558909226, was assigned on December 12, 2019. Matthew Duff holds California license 95013312.
- NPI
- 1558909226NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052771227
- NPI enumeration date
- December 12, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 307-0900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Matthew Duff practices at Charms Property Incorporated in Redlands, California
Matthew Duff's primary practice is Charms Property Incorporated, at 245 Terracina Blvd, Redlands, CA 92373 in San Bernardino County. The practice phone is (909) 307-0900.
- Charms Property Incorporated245 Terracina Blvd, Redlands, CA 92373 · San Bernardino CountyPhone(909) 307-0900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Matthew Duff is affiliated with 4 sites of care and 3 medical groups
Matthew Duff's primary practice is Charms Property Incorporated in Redlands, California. Matthew Duff is also affiliated with Redlands Community Hospital. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Matthew Duff to 2 more group practices and clinics and 2 medical groups, each 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 Matthew Duff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Matthew Duff practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Charms Property Incorporated | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Matthew Duff is one of 13,532 family nurse practitioners in California
Family is Matthew Duff's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Matthew Duff is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Clinical focus
Dmand AI lists gout, high cholesterol and UTI among the conditions Matthew Duff treats.
Family nurse practitioners near Matthew Duff
Counts of family nurse practitioners 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
Matthew Duff treated 11 Medicare patients in 2024, average age 75
CMS counts 11 Medicare patients who saw Matthew Duff in 2024. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Matthew Duff's median patient age at 60, with 52% women.
Matthew Duff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Matthew Duff wrote 1,787 Medicare Part D claims in 2024
In 2024, Matthew Duff wrote 1,787 Medicare Part D claims for 291 patients. 85% of them were for generic drugs. CMS names the drug for 1,354 of them, across 41 drugs with 11 or more claims each, at $175,341 in total drug cost.
Matthew Duff's Part D claims by kind of drug, 2024
- Generic1,521 claims85%
- Brand-name and other266 claims15%
Matthew Duff's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Matthew Duff's Part D claims, 2024
- Opioids1%16 of 1,787 claims
- Antibiotics2%40 of 1,787 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Matthew Duff takes part in Medicare
Matthew Duff 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)
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Matthew Duff received $65 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Matthew Duff from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $49.
General payments to Matthew Duff by program year, 2024 to 2025
Companies that paid Matthew Duff the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Matthew Duff'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 and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Matthew Duff
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Matthew Duff's NPI number?
Matthew Duff's NPI number is 1558909226. It was assigned on December 12, 2019, and it is active in the NPI Registry.
What does Matthew Duff specialize in?
Matthew Duff is a family nurse practitioner in Redlands, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Matthew Duff practice?
Matthew Duff practices at 245 Terracina Blvd, Redlands, CA 92373. Matthew Duff's primary practice is Charms Property Incorporated in Redlands, California. Dmand AI also links Matthew Duff to 2 group practices and clinics and 2 medical groups.
What is Matthew Duff's office phone number?
The practice phone on file for Matthew Duff is (909) 307-0900.
What is Matthew Duff's medical license number?
Matthew Duff holds California license 95013312.
Which hospitals is Matthew Duff affiliated with?
Matthew Duff is affiliated with Redlands Community Hospital.
What medical group is Matthew Duff part of?
Matthew Duff is linked to Optum - Downtown Los Angeles. Dmand AI links Matthew Duff to 2 more medical groups.
Does Matthew Duff accept Medicare?
Yes. CMS lists Matthew Duff as accepting Medicare assignment.
How many Medicare patients does Matthew Duff see?
CMS counts 11 Medicare patients who saw Matthew Duff in 2024, with an average age of 75.
What drugs does Matthew Duff prescribe most?
In 2024 Medicare Part D data, Matthew Duff's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.
Has Matthew Duff received payments from drug or device companies?
CMS Open Payments shows $65 in general payments to Matthew Duff from 2 companies from 2024 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Matthew Duff been practicing?
Matthew Duff graduated from medical school in 2019, 7 years ago.
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