BMC Neurosci
Alzheimer DiseaseCognitive DysfunctionDouble-Blind Method
Dr. William J. Au, MD
NPI1457375321
- Medicare services, 2020
- 144
- Part D claims, 2021
- 113
- Publications
- 3
- Industry payments
- $153
- Insurance carriers
- 5
- Practice address
- 2800 L St, Sacramento, CA 95816-5616
- Practice phone
- Call (916) 454-6850
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Au'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. William J. Au is a neurologist in Sacramento, California
Dr. Au practices in Sacramento, California.
Dr. Au's NPI, 1457375321, was assigned on July 26, 2006. Dr. Au graduated from UC Irvine School of Medicine in 1975. Dr. Au holds California license G32757.
NPI and contact details
- NPI
- 1457375321NPI Registry (opens in a new tab)
- NPI enumeration date
- July 26, 2006
- NPI status
- Active
- Practice phone
- (916) 454-6850
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William J. Au's practice address is in Sacramento, California
Dr. Au's practice address in the NPI Registry is 2800 L St, Sacramento, CA 95816-5616. The practice phone is (916) 454-6850.
- NPI Registry address2800 L St, Sacramento, CA 95816-5616Phone(916) 454-6850
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. William J. Au's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Au practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Au's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William J. Au is one of 2,207 neurologists in California
Neurology is Dr. Au's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Au is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Au is licensed in California.
Specialties and state licenses
- Neurology, CaliforniaPrimary
Neurologists near Dr. Au
Counts of neurologists 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. William J. Au billed Medicare for 144 services in 2020
CMS data shows 144 Medicare services from Dr. Au across 4 procedure codes in 2020. Medicare paid $15,994 for them. Every service was in an office.
Medicare services, 2020144
Paid by Medicare$15,994
Procedure codes4
Dr. Au's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 2192020: 14434%
Dr. Au compared with the California median for neurologists, 2020
- Dr. Au
- California median
- Medicare services
- 144vs 40464% below
- Part D claims
- 113vs 32465% below
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Au's most billed Medicare procedure codes, 2020
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. Au?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Au and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William J. Au's patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. Au's median patient age at 56, with 50% women.
Dr. Au's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. William J. Au wrote 113 Medicare Part D claims in 2021
In 2021, Dr. Au wrote 113 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $2,619 in total drug cost. In 2020, CMS named 526 claims across 11 drugs.
Part D claims, 2021113
Drugs named by CMS3
Total drug cost$2,619
Dr. Au's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 5262021: 11379%
Drugs named by CMS: 3 in 2021, 11 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
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Dr. William J. Au has 3 publications on record
Dmand AI links 3 papers to Dr. Au, published from 2015 to 2021. The most frequent topics are Cognitive Dysfunction, Immunoglobulins, Intravenous and Alzheimer Disease. Dr. Au's most frequent co-authors are Shawn J. Kile, MD, Azad Ghassemi, MD and Jaideep Singh Sohi, MD.
Papers3
Years published2015 to 2021
Topics Dr. Au writes about most
- Cognitive Dysfunction
- Immunoglobulins, Intravenous
- Alzheimer Disease
- Brain
- Double-Blind Method
Dr. Au's most frequent co-authors
- Shawn J. Kile, MD3 shared papers
- Azad Ghassemi, MD2 shared papers
- Jaideep Singh Sohi, MD1 shared paper
Recent publications by Dr. Au
J Neurol Neurosurg Psychiatry
Alzheimer DiseaseAmnesiaAtrophy
Am J Alzheimers Dis Other Demen
Amyloid beta-PeptidesAniline CompoundsBrain
See who Dr. Au researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Au 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. William J. Au received $153 in industry payments in 2018
CMS Open Payments shows 2 general payments to Dr. Au from 2 drug and device companies in 2018. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $146.
Companies that paid Dr. Au the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William J. Au has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Au, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Au
- 2013
- CMS Stage 1 EHR
- 2010
- Golden Stethoscope Award
- Undated
- Checkbook Top Doc
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. William J. Au graduated from UC Irvine School of Medicine
Dr. Au graduated from UC Irvine School of Medicine in 1975.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. William J. Au accepts plans from 5 insurance carriers
Dr. Au is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
Plan types Dr. Au accepts, by number of carriers
- Medicare5
- PPO5
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William J. Au'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 |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. William J. Au
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. William J. Au's NPI number?
Dr. William J. Au's NPI number is 1457375321. It was assigned on July 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William J. Au?
Dr. William J. Au is a neurologist in Sacramento, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. William J. Au practice?
Dr. Au practices at 2800 L St, Sacramento, CA 95816-5616.
What is Dr. William J. Au's office phone number?
The practice phone on file for Dr. Au is (916) 454-6850.
What is Dr. William J. Au's medical license number?
Dr. Au holds California license G32757.
Does Dr. William J. Au accept Medicare?
Yes. CMS data shows Dr. Au billed Medicare for 144 services in 2020.
Is Dr. William J. Au board certified?
Yes. Dr. Au is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. William J. Au bill to Medicare?
In 2020, Dr. Au's most billed Medicare services were office visit, established patient (99214), medical service (99354) and office visit, new patient (99205).
Where did Dr. William J. Au go to medical school?
Dr. Au graduated from UC Irvine School of Medicine in 1975.
What drugs does Dr. William J. Au prescribe most?
In 2021 Medicare Part D data, Dr. Au's most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Escitalopram Oxalate.
Show 5 more questionsShow fewer questions
Has Dr. William J. Au received payments from drug or device companies?
CMS Open Payments shows $153 in general payments to Dr. Au from 2 companies from 2018 to 2018. The largest total came from Abbott Laboratories.
How long has Dr. William J. Au been practicing?
Dr. Au graduated from medical school in 1975, 51 years ago.
Does Dr. William J. Au do research?
Dmand AI links 3 publications to Dr. Au, published from 2015 to 2021.
Who does Dr. William J. Au publish with?
Dr. Au's most frequent co-authors are Shawn J. Kile, MD (3 shared papers), Azad Ghassemi, MD (2 shared papers) and Jaideep Singh Sohi, MD (1 shared paper).
What insurance does Dr. William J. Au accept?
Dr. Au is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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