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Dr. Stephen Richard Au, MD
NPI1396036331PAC ID8729373501
- Medicare services, 2024
- 342
- Medicare patients, 2024
- 211
- Publications
- 2
- Hospital affiliations
- 2
- Industry payments
- $249
- Practice address
- One Hoag Drive, Newport Beach, CA 92663
- Practice phone
- Call (949) 764-4624
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Stephen Richard Au is an anesthesiologist in Newport Beach, California
Dr. Au practices at Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian.
Dr. Au's NPI, 1396036331, was assigned on April 25, 2011. Dr. Au graduated from Tulane School of Medicine in 2011. Dr. Au holds California license A124086.
NPI and contact details
- NPI
- 1396036331NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729373501
- NPI enumeration date
- April 25, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 764-4624
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Richard Au practices at 2 locations in Newport Beach, California
Dr. Au's primary practice is Hoag Hospital Newport Beach, at One Hoag Drive, Newport Beach, CA 92663 in Orange County. The practice phone is (949) 764-4624. Dr. Au also practices at Hoag Hospital Newport Beach, 1 Hoag Dr, Newport Beach, CA 92663.
- Hoag Hospital Newport BeachPrimaryOne Hoag Drive, Newport Beach, CA 92663 · Orange CountyPhone(949) 764-4624
- Hoag Hospital Newport Beach1 Hoag Dr, Newport Beach, CA 92663 · Orange CountyPhone(949) 764-4624
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Stephen Richard Au is affiliated with 2 sites of care and 4 medical groups
Dr. Au's primary practice is Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian. Dr. Au is also affiliated with Hoag Orthopedic Institute. The medical group on file is MemorialCare Medical Group. Dmand AI also links Dr. Au to 3 more 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. Stephen Richard Au's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Au practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hoag Hospital Newport Beach | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Richard Au is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Au's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Au is board certified in anesthesiology by the American Board of Anesthesiology. Dr. Au is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Au
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
6,593anesthesiologists in California96anesthesiologists in Newport Beach61anesthesiologists at Hoag Hospital Newport Beach
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen Richard Au billed Medicare for 342 services in 2024
CMS data shows 342 Medicare services from Dr. Au across 14 procedure codes in 2024, for 211 Medicare patients. Medicare paid $37,452 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024342
Medicare patients211
Paid by Medicare$37,452
Procedure codes14
Dr. Au's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 762024: 12767%
- Surgery
- 2023: 822024: 9212%
- Tests and treatments
- 2023: 1082024: 7431%
- Imaging
- 2023: 562024: 4913%
Dr. Au compared with the California median for anesthesiologists, 2024
- Dr. Au
- California median
- Medicare services
- 342vs 724.8 times
- Medicare patients
- 211vs 14348% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Au'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. Au?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Au and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Richard Au treated 211 Medicare patients in 2024, average age 75
CMS counts 211 Medicare patients who saw Dr. Au in 2024. The largest group is 65 to 74, with 102 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Au's median patient age at 67, with 50% women.
Medicare patients, 2024211
Average age75
Average risk score1.31
Dr. Au's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Au's Medicare patients by sex, 2024
- Women10047%
- Men11153%
Chronic conditions among Dr. Au's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis60%
- Ischemic heart disease42%
- Atrial fibrillation29%
- Chronic kidney disease24%
- Cancer23%
- Diabetes23%
Share of Medicare patients with each condition. A patient can have several.
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 67
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Stephen Richard Au takes part in Medicare
Dr. Au 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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Dr. Stephen Richard Au has 2 publications on record
Dmand AI links 2 papers to Dr. Au. Dr. Au's most frequent co-author is Katherine Au, MD.
Papers2
Dr. Au's most frequent co-authors
Recent publications by Dr. Au
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 anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen Richard Au received $249 in industry payments from 2016 to 2024
CMS Open Payments shows 7 general payments to Dr. Au from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. enableCV Inc. paid the most, $117.
General payments to Dr. Au by program year, 2016 to 2024
Companies that paid Dr. Au the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen Richard Au graduated from Tulane School of Medicine
Dr. Au graduated from Tulane School of Medicine in 2011.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Stephen Richard Au accepts plans from 6 insurance carriers
Dr. Au is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Au accepts, by number of carriers
- PPO3
- Medicare2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stephen Richard 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 Affiliation DataDmand AI Practice 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) |
| 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. Stephen Richard 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. Stephen Richard Au's NPI number?
Dr. Stephen Richard Au's NPI number is 1396036331. It was assigned on April 25, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Richard Au?
Dr. Stephen Richard Au is an anesthesiologist in Newport Beach, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Stephen Richard Au practice?
Dr. Au practices at One Hoag Drive, Newport Beach, CA 92663. Dr. Au also practices at 1 Hoag Dr, Newport Beach, CA 92663. Dr. Au's primary practice is Hoag Hospital Newport Beach in Newport Beach, California, part of Hoag Memorial Hospital Presbyterian. Dmand AI also links Dr. Au to 3 medical groups.
What is Dr. Stephen Richard Au's office phone number?
The practice phone on file for Dr. Au is (949) 764-4624.
What is Dr. Stephen Richard Au's medical license number?
Dr. Au holds California license A124086.
Which hospitals is Dr. Stephen Richard Au affiliated with?
Dr. Au practices at Hoag Hospital Newport Beach in Newport Beach, California. Dr. Au is also affiliated with Hoag Orthopedic Institute.
What medical group is Dr. Stephen Richard Au part of?
Dr. Au is linked to MemorialCare Medical Group. Dmand AI links Dr. Au to 3 more medical groups.
Does Dr. Stephen Richard Au accept Medicare?
Yes. CMS data shows Dr. Au billed Medicare for 342 services in 2024, and Dr. Au accepts Medicare assignment.
How many Medicare patients does Dr. Stephen Richard Au see?
CMS counts 211 Medicare patients who saw Dr. Au in 2024, with an average age of 75.
Is Dr. Stephen Richard Au board certified?
Yes. Dr. Au is board certified in anesthesiology by the American Board of Anesthesiology.
Show 7 more questionsShow fewer questions
What services does Dr. Stephen Richard Au bill to Medicare?
In 2024, Dr. Au's most billed Medicare services were surgery: heart and blood vessels (36556), anesthesia (00811) and surgery: heart and blood vessels (36620).
Where did Dr. Stephen Richard Au go to medical school?
Dr. Au graduated from Tulane School of Medicine in 2011.
Has Dr. Stephen Richard Au received payments from drug or device companies?
CMS Open Payments shows $249 in general payments to Dr. Au from 7 companies from 2016 to 2024. The largest total came from enableCV Inc.
How long has Dr. Stephen Richard Au been practicing?
Dr. Au graduated from medical school in 2011, 15 years ago.
Does Dr. Stephen Richard Au do research?
Dmand AI links 2 publications to Dr. Au.
Who does Dr. Stephen Richard Au publish with?
Dr. Au's most frequent co-authors are Katherine Au, MD (1 shared paper).
What insurance does Dr. Stephen Richard Au accept?
Dr. Au is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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