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Dr. Max Barnett Duncan Jr., DO
NPI1114066974
- Medicare services, 2024
- 51,876
- Medicare patients, 2024
- 687
- Part D claims, 2024
- 4,791
- Publications
- 4
- Hospital affiliations
- 1
- Practice address
- 2825 Capitol Avenue, Sacramento, CA 95816
- Practice phone
- Call (916) 454-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Duncan'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. Max Barnett Duncan Jr. is a neurologist in Sacramento, California
Dr. Duncan practices at Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health.
Dr. Duncan's NPI, 1114066974, was assigned on February 6, 2007. Dr. Duncan graduated from Chicago College of Osteopathic Medicine at Midwestern University in 1982. Dr. Duncan holds California license 128269.
NPI and contact details
- NPI
- 1114066974NPI Registry (opens in a new tab)
- NPI enumeration date
- February 6, 2007
- NPI status
- Active
- Practice phone
- (916) 454-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Max Barnett Duncan Jr. practices at Sutter Medical Center, Sacramento in Sacramento, California
Dr. Duncan's primary practice is Sutter Medical Center, Sacramento, at 2825 Capitol Avenue, Sacramento, CA 95816 in Sacramento County. The practice phone is (916) 454-2222.
- Sutter Medical Center, Sacramento2825 Capitol Avenue, Sacramento, CA 95816 · Sacramento CountyPhone(916) 454-2222
Source: Dmand AI Affiliation Data
Dr. Max Barnett Duncan Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Duncan's primary practice is Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Duncan to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Max Barnett Duncan Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duncan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Medical Center, Sacramento | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Max Barnett Duncan Jr. is one of 2,207 neurologists in California
Neurology is Dr. Duncan's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Duncan is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Duncan's licenses on file in 5 states: California, Arizona, Oregon, Hawaii and Washington.
Specialties and state licenses
- Neurology, CaliforniaPrimary
- Arizona license
- Oregon license
- Hawaii license
- Washington license
Clinical focus
Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, carpal tunnel syndrome, cerebrovascular disease, encephalopathy, epilepsy, essential tremor and fibromyalgia and chronic pain among the conditions Dr. Duncan treats.
Neurologists near Dr. Duncan
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
2,207neurologists in California78neurologists in Sacramento7neurologists at Sutter Medical Center, Sacramento
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Max Barnett Duncan Jr. billed Medicare for 51,876 services in 2024
CMS data shows 51,876 Medicare services from Dr. Duncan across 11 procedure codes in 2024, for 687 Medicare patients. Medicare paid $379,706 for them. Every service was in an office.
Medicare services, 202451,876
Medicare patients687
Paid by Medicare$379,706
Procedure codes11
Dr. Duncan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 47,8752024: 50,2225%
- Office and hospital visits
- 2023: 1,1342024: 94017%
- Other services
- 2023: 02024: 462
- Surgery
- 2023: 1742024: 25245%
Dr. Duncan compared with the California median for neurologists, 2024
- Dr. Duncan
- California median
- Medicare services
- 51,876vs 404128.4 times
- Medicare patients
- 687vs 1903.6 times
- Part D claims
- 4,456vs 32413.8 times
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Duncan'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. Duncan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duncan and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Max Barnett Duncan Jr. treated 687 Medicare patients in 2024, average age 75
CMS counts 687 Medicare patients who saw Dr. Duncan in 2024. The largest group is 75 to 84, with 291 patients. 75% of them have high cholesterol, and 66% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duncan's median patient age at 73, with 59% women.
Medicare patients, 2024687
Average age75
Average risk score1.28
Also on Medicaid16%
Dr. Duncan's Medicare patients by age, 2024
Dr. Duncan's Medicare patients by sex, 2024
- Women40659%
- Men28141%
Chronic conditions among Dr. Duncan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis46%
- Mood disorders36%
- Anxiety32%
- Depression32%
- Alzheimer's and dementia26%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duncan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women59%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Max Barnett Duncan Jr. wrote 4,791 Medicare Part D claims in 2024
In 2024, Dr. Duncan wrote 4,791 Medicare Part D claims for 755 patients. 93% of them were for generic drugs. CMS names the drug for 4,456 of them, across 73 drugs with 11 or more claims each, at $714,923 in total drug cost. In 2023, CMS named 4,425 claims across 74 drugs.
Part D claims, 20244,791
Drugs named by CMS73
Total drug cost$714,923
Part D patients755
Dr. Duncan's Part D claims by kind of drug, 2024
- Generic4,437 claims93%
- Brand-name331 claims7%
- Other23 claims0%
Dr. Duncan'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. Duncan's Part D claims, 2024
- Opioids1%65 of 4,791 claims
- Antipsychotics, patients 65 and over4%203 of 4,791 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: 4,4252024: 4,4561%
Drugs named by CMS: 73 in 2024, 74 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
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Dr. Max Barnett Duncan Jr. has 4 publications on record
Dmand AI links 4 papers to Dr. Duncan.
Papers4
Recent publications by Dr. Duncan
See who Dr. Duncan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Duncan works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Max Barnett Duncan Jr. received $102 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Duncan from 5 drug and device companies from 2016 to 2025. Education make up the largest share, 60% of the total. UCB, Inc. paid the most, $60.
General payments to Dr. Duncan by program year, 2016 to 2025
General payments to Dr. Duncan by kind, 2016 to 2025
$102in total
- Education$6160%
- Food and beverage$4040%
Companies that paid Dr. Duncan 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. Max Barnett Duncan Jr. graduated from Chicago College of Osteopathic Medicine at Midwestern University
Dr. Duncan graduated from Chicago College of Osteopathic Medicine at Midwestern University in 1982.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. Max Barnett Duncan Jr. accepts plans from 14 insurance carriers
Dr. Duncan is in network with 14 carriers, including Aetna, Excellus BlueCross BlueShield and Elevance. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Duncan accepts, by number of carriers
- PPO10
- HMO7
- Medicare6
- EPO5
- POS5
Source: Dmand AI Insurance Network Data
Sources for Dr. Max Barnett Duncan Jr.'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) |
| 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. Max Barnett Duncan Jr.
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. Max Barnett Duncan Jr.'s NPI number?
Dr. Max Barnett Duncan Jr.'s NPI number is 1114066974. It was assigned on February 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Max Barnett Duncan Jr.?
Dr. Max Barnett Duncan Jr. is a neurologist in Sacramento, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Max Barnett Duncan Jr. practice?
Dr. Duncan practices at 2825 Capitol Avenue, Sacramento, CA 95816. Dr. Duncan's primary practice is Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health. Dmand AI also links Dr. Duncan to 1 group practice or clinic.
What is Dr. Max Barnett Duncan Jr.'s office phone number?
The practice phone on file for Dr. Duncan is (916) 454-2222.
What is Dr. Max Barnett Duncan Jr.'s medical license number?
Dr. Duncan holds California license 128269, one of the licenses on file in 5 states.
Which states has Dr. Max Barnett Duncan Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Duncan in California (1985 to 2027), Arizona (since 2009), Oregon (since 2004), Hawaii (2001 to 2004) and Washington (1993 to 2002).
Which hospitals is Dr. Max Barnett Duncan Jr. affiliated with?
Dr. Duncan practices at Sutter Medical Center, Sacramento in Sacramento, California.
What medical group is Dr. Max Barnett Duncan Jr. part of?
Dr. Duncan is linked to Palo Alto Foundation Medical Group.
Does Dr. Max Barnett Duncan Jr. accept Medicare?
Yes. CMS data shows Dr. Duncan billed Medicare for 51,876 services in 2024.
How many Medicare patients does Dr. Max Barnett Duncan Jr. see?
CMS counts 687 Medicare patients who saw Dr. Duncan in 2024, with an average age of 75.
Show 8 more questionsShow fewer questions
Is Dr. Max Barnett Duncan Jr. board certified?
Yes. Dr. Duncan is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Max Barnett Duncan Jr. bill to Medicare?
In 2024, Dr. Duncan's most billed Medicare services were injected or infused drug (J0585), injected or infused drug (J0665) and office visit, established patient (99214).
Where did Dr. Max Barnett Duncan Jr. go to medical school?
Dr. Duncan graduated from Chicago College of Osteopathic Medicine at Midwestern University in 1982.
What drugs does Dr. Max Barnett Duncan Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Duncan's most prescribed drugs by claims were Gabapentin, Memantine HCl and Carbidopa-Levodopa.
Has Dr. Max Barnett Duncan Jr. received payments from drug or device companies?
CMS Open Payments shows $102 in general payments to Dr. Duncan from 5 companies from 2016 to 2025. The largest total came from UCB, Inc.
How long has Dr. Max Barnett Duncan Jr. been practicing?
Dr. Duncan graduated from medical school in 1982, 44 years ago.
Does Dr. Max Barnett Duncan Jr. do research?
Dmand AI links 4 publications to Dr. Duncan.
What insurance does Dr. Max Barnett Duncan Jr. accept?
Dr. Duncan is in network with 14 carriers, including Aetna, Excellus BlueCross BlueShield and Elevance. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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