Max Barnett Duncan, D.O.
Neurology Physician · Santa Rosa, CA
Max Barnett Duncan, D.O. is a neurology physician with a practice address in Santa Rosa, California, and NPI 1114066974, issued on Feb 6, 2007. Check the license (California 128269, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Max Barnett Duncan
- Credential
- D.O.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 128269 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3883 Airway Dr, Santa Rosa, CA 95403
- Phone
- (707) 521-7755
- Enumerated
- Feb 6, 2007
- Record last updated
- Nov 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (707) 523-1309
- Medicare enrollment
- Enrolled (PECOS I20090808000062); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 1982
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3883 Airway Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Navneet Attri, M.D.Internal Medicine Physician1407021918
- Marjorie Bohn, DOPediatrics Physician1275747214
- Anthony Carrasquillo, PT, DPTPhysical Therapist1831643501
- Emily Cozine, PT, DPTPhysical Therapist1144792201
- Courtney FosterPhysical Medicine & Rehabilitation Physician1982452728
- Priyanka Kadaba, MDDiagnostic Radiology Physician1386099216
Verify Max Barnett Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 128269Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average neurology physician in 2024
4,791 Medicare Part D claims for 755 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 65 claims were for opioids.
Most prescribed
- Gabapentin525 claims
- Memantine Hcl440 claims
- Carbidopa-Levodopa384 claims
- Donepezil Hcl341 claims
- Levetiracetam235 claims
- Escitalopram Oxalate178 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
Other neurology physician records in California
- Venkat Raghav Aachi, MDThousand Oaks, CA1740640051
- John Aalbers, M.D.San Diego, CA1942262431
- Kafia Abbasi, M.D.French Camp, CA1215114897
- Puya Abbassi, D.O.San Jose, CA1831695428
- Ahmed Abdelhak, MB CHBSan Francisco, CA1053013748
- Diana Abdulrahman, M.D.Pomona, CA1518276880
- Hadi Abou El Hassan, MDLos Angeles, CA1053995720
- John Paul Aboubechara, MD, PHDPalo Alto, CA1205461803
- Saheil AboutalibLong Beach, CA1548551112
- Justin Abraham, M.D., M.B.A.Santa Barbara, CA1225322522
Common questions
What is Max Barnett Duncan, D.O.'s NPI number?
Max Barnett Duncan, D.O.'s National Provider Identifier (NPI) is 1114066974, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Max Barnett Duncan, D.O. located?
The NPPES record lists a practice address at 3883 Airway Dr, Santa Rosa, CA, 95403. Phone: (707) 521-7755. Providers update this record themselves, so call before visiting.
How can I verify Max Barnett Duncan, D.O.'s license?
NPPES lists California license number 128269, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Max Barnett Duncan, D.O. prescribe under Medicare Part D?
In 2024, Max Barnett Duncan, D.O. had 4,791 Medicare Part D claims for 755 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.