Dr. Joseph Collins Duflot, MD
- Medicare services, 2024
- 35,058
- Medicare patients, 2024
- 1,108
- Part D claims, 2024
- 4,353
- Publications
- 1
- Hospital affiliations
- 3
- Practice address
- 560 E Herndon Ave, Fresno, CA 93720
- Practice phone
- Call (615) 341-5278
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
DaVita Herndon Dialysis
Dialysis Center - Independent · Fresno, California
Find Dr. Duflot'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.
Dr. Joseph Collins Duflot is a nephrologist in Fresno, California
Dr. Duflot practices at DaVita Herndon Dialysis in Fresno, California.
Dr. Duflot's NPI, 1467420679, was assigned on March 14, 2006. Dr. Duflot graduated from UTMB Health in 1986. Dr. Duflot's California license number on file is A44916.
- NPI
- 1467420679NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486747060
- NPI enumeration date
- March 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (615) 341-5278
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Collins Duflot practices at DaVita Herndon Dialysis in Fresno, California
Dr. Duflot's primary practice is DaVita Herndon Dialysis, at 560 E Herndon Ave, Fresno, CA 93720 in Fresno County. The practice phone is (615) 341-5278.
- DaVita Herndon Dialysis560 E Herndon Ave, Fresno, CA 93720 · Fresno CountyPhone(615) 341-5278
Source: Dmand AI Affiliation Data
Dr. Joseph Collins Duflot is affiliated with 11 sites of care and 3 medical groups
Dr. Duflot's primary practice is DaVita Herndon Dialysis in Fresno, California. Dr. Duflot is also affiliated with Community Regional Medical Center. The medical group on file is The Nephrology Group, Inc. Dmand AI also links Dr. Duflot to 2 more hospitals, 4 dialysis centers, 3 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph Collins Duflot's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duflot practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DaVita Herndon Dialysis | Available with a free account |
| +10 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joseph Collins Duflot is one of 1,401 nephrologists in California
Nephrology is Dr. Duflot's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Duflot is board certified in internal medicine by the American Board of Internal Medicine. Dr. Duflot has a license on file in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances, kidney cysts, kidney disease and parathyroid gland disorder among the conditions Dr. Duflot treats.
Nephrologists near Dr. Duflot
Counts of nephrologists 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
Dr. Joseph Collins Duflot billed Medicare for 35,058 services in 2024
CMS data shows 35,058 Medicare services from Dr. Duflot across 45 procedure codes in 2024, for 1,108 Medicare patients. Medicare paid $413,026 for them.
Dr. Duflot's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 35,8362024: 23,86033%
- Lab and pathology
- 2023: 7,3972024: 7,5242%
- Office and hospital visits
- 2023: 2,2122024: 2,0059%
- Surgery
- 2023: 8712024: 8384%
- Tests and treatments
- 2023: 9062024: 79612%
- Imaging
- 2023: 422024: 3614%
Where Dr. Duflot's Medicare services took place, 2024
- In an office34,19098%
- In a facility8682%
Dr. Duflot compared with the California median for nephrologists, 2024
- Dr. Duflot
- California median
- Medicare services
- 35,058vs 1,08432.3 times
- Medicare patients
- 1,108vs 3073.6 times
- Part D claims
- 3,864vs 9554.0 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Duflot's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Duflot?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duflot and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph Collins Duflot treated 1,108 Medicare patients in 2024, average age 75
CMS counts 1,108 Medicare patients who saw Dr. Duflot in 2024. The largest group is 75 to 84, with 413 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 33% are also on Medicaid. Their average risk score is 3.49, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Duflot's median patient age at 69, with 47% women.
Dr. Duflot's Medicare patients by age, 2024
Dr. Duflot's Medicare patients by sex, 2024
- Women54849%
- Men56051%
Chronic conditions among Dr. Duflot's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes61%
- Ischemic heart disease53%
- Arthritis45%
- Heart failure43%
- Atrial fibrillation29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duflot'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
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Collins Duflot wrote 4,353 Medicare Part D claims in 2024
In 2024, Dr. Duflot wrote 4,353 Medicare Part D claims for 772 patients. 84% of them were for generic drugs. CMS names the drug for 3,864 of them, across 66 drugs with 11 or more claims each, at $715,905 in total drug cost. In 2023, CMS named 3,422 claims across 67 drugs.
Dr. Duflot's Part D claims by kind of drug, 2024
- Generic3,670 claims84%
- Brand-name665 claims15%
- Other18 claims0%
Dr. Duflot'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 Dr. Duflot's Part D claims, 2024
- Opioids0%20 of 4,353 claims
- Antibiotics3%122 of 4,353 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,4222024: 3,86413%
Drugs named by CMS: 66 in 2024, 67 in 2023.
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
Dr. Joseph Collins Duflot offers telehealth to Medicare patients
Dr. Duflot accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Duflot as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Joseph Collins Duflot has 1 publication on record
Dmand AI links 1 paper to Dr. Duflot.
Recent publications by Dr. Duflot
See who Dr. Duflot researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Duflot works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joseph Collins Duflot received $5,446 in industry payments from 2016 to 2025
CMS Open Payments shows 250 general payments to Dr. Duflot from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $984.
General payments to Dr. Duflot by program year, 2016 to 2025
General payments to Dr. Duflot by kind, 2016 to 2025
- Food and beverage$5,432100%
- Education$140%
Companies that paid Dr. Duflot the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph Collins Duflot graduated from UTMB Health
Dr. Duflot graduated from UTMB Health in 1986. Dr. Duflot is a member of ACP.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Joseph Collins Duflot accepts plans from 18 insurance carriers
Dr. Duflot is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +10 more carriersWith a free account
Plan types Dr. Duflot accepts, by number of carriers
- PPO9
- HMO8
- Medicare8
- EPO5
- POS5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joseph Collins Duflot'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Dr. Joseph Collins Duflot
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joseph Collins Duflot's NPI number?
Dr. Joseph Collins Duflot's NPI number is 1467420679. It was assigned on March 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Collins Duflot?
Dr. Joseph Collins Duflot is a nephrologist in Fresno, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Joseph Collins Duflot practice?
Dr. Duflot practices at 560 E Herndon Ave, Fresno, CA 93720. Dr. Duflot's primary practice is DaVita Herndon Dialysis in Fresno, California. Dmand AI also links Dr. Duflot to 2 hospitals, 4 dialysis centers, 3 group practices and clinics and 2 medical groups.
What is Dr. Joseph Collins Duflot's office phone number?
The practice phone on file for Dr. Duflot is (615) 341-5278.
What is Dr. Joseph Collins Duflot's medical license number?
Dr. Duflot's California license number on file is A44916.
Which hospitals is Dr. Joseph Collins Duflot affiliated with?
Dr. Duflot is affiliated with Community Regional Medical Center. Dmand AI links Dr. Duflot to 2 more hospitals.
What medical group is Dr. Joseph Collins Duflot part of?
Dr. Duflot is linked to The Nephrology Group, Inc. Dmand AI links Dr. Duflot to 2 more medical groups.
Does Dr. Joseph Collins Duflot accept Medicare?
Yes. CMS data shows Dr. Duflot billed Medicare for 35,058 services in 2024, and Dr. Duflot accepts Medicare assignment.
Does Dr. Joseph Collins Duflot offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Duflot as offering telehealth services.
How many Medicare patients does Dr. Joseph Collins Duflot see?
CMS counts 1,108 Medicare patients who saw Dr. Duflot in 2024, with an average age of 75.
Show 8 more questionsShow fewer questions
Is Dr. Joseph Collins Duflot board certified?
Yes. Dr. Duflot is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Joseph Collins Duflot bill to Medicare?
In 2024, Dr. Duflot's most billed Medicare services were injected or infused drug (J1439), injected or infused drug (J0885) and office visit, established patient (99214).
Where did Dr. Joseph Collins Duflot go to medical school?
Dr. Duflot graduated from UTMB Health in 1986.
What drugs does Dr. Joseph Collins Duflot prescribe most?
In 2024 Medicare Part D data, Dr. Duflot's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Furosemide.
Has Dr. Joseph Collins Duflot received payments from drug or device companies?
CMS Open Payments shows $5,446 in general payments to Dr. Duflot from 32 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Joseph Collins Duflot been practicing?
Dr. Duflot graduated from medical school in 1986, 40 years ago.
Does Dr. Joseph Collins Duflot do research?
Dmand AI links 1 publication to Dr. Duflot.
What insurance does Dr. Joseph Collins Duflot accept?
Dr. Duflot is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
Selling to nephrology practices?
See nephrologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card