Dr. Alexander Gau, DO
- Medicare services, 2024
- 289
- Medicare patients, 2024
- 218
- Part D claims, 2024
- 59
- Hospital affiliations
- 3
- Industry payments
- $171
- Practice address
- 26520 Cactus Ave, Moreno Valley, CA 92555
- Practice phone
- Call (951) 486-4458
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Riverside University Medical Center
Moreno Valley, California
Find Dr. Gau'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. Alexander Gau is an emergency medicine physician in Moreno Valley, California
Dr. Gau practices at Riverside University Medical Center in Moreno Valley, California.
Dr. Gau's NPI, 1801478540, was assigned on April 22, 2021. Dr. Gau graduated from College of Osteopathic Medicine of the Pacific in 2021. Dr. Gau holds California license 20A20667.
- NPI
- 1801478540NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921545310
- NPI enumeration date
- April 22, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 486-4458
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Gau practices at Riverside University Medical Center in Moreno Valley, California
Dr. Gau's primary practice is Riverside University Medical Center, at 26520 Cactus Ave, Moreno Valley, CA 92555 in Riverside County. The practice phone is (951) 486-4458.
- Riverside University Medical Center26520 Cactus Ave, Moreno Valley, CA 92555 · Riverside CountyPhone(951) 486-4458
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alexander Gau is affiliated with 4 sites of care and 1 medical group
Dr. Gau's primary practice is Riverside University Medical Center in Moreno Valley, California. Dr. Gau is also affiliated with Riverside University Health System - Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Gau to 2 more hospitals, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexander Gau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gau practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside University Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander Gau is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Gau's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Gau is board certified in 2023 - 2026 by the CA State License. Dr. Gau is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Gau
Counts of emergency medicine physicians 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. Alexander Gau billed Medicare for 289 services in 2024
CMS data shows 289 Medicare services from Dr. Gau across 4 procedure codes in 2024, for 218 Medicare patients. Medicare paid $28,373 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gau's Medicare services by type, 2024
- Office and hospital visits206
- Tests and treatments83
Dr. Gau compared with the California median for emergency medicine physicians, 2024
- Dr. Gau
- California median
- Medicare services
- 289vs 2659% above
- Medicare patients
- 218vs 24310% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Gau'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gau and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander Gau treated 218 Medicare patients in 2024, average age 74
CMS counts 218 Medicare patients who saw Dr. Gau in 2024. The largest group is 65 to 74, with 69 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 62% are also on Medicaid. Their average risk score is 2.65, 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. Gau's median patient age at 43, with 56% women.
Dr. Gau's Medicare patients by age, 2024
Dr. Gau's Medicare patients by sex, 2024
- Women11955%
- Men9945%
Chronic conditions among Dr. Gau's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes59%
- Arthritis50%
- Chronic kidney disease50%
- Heart failure45%
- Ischemic heart disease44%
- Mood disorders37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexander Gau wrote 59 Medicare Part D claims in 2024
In 2024, Dr. Gau wrote 59 Medicare Part D claims for 49 patients. 95% of them were for generic drugs.
Dr. Gau's Part D claims by kind of drug, 2024
- Generic56 claims95%
- Brand-name and other3 claims5%
Drug classes CMS tracks in Dr. Gau's Part D claims, 2024
- Antibiotics34%20 of 59 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Alexander Gau takes part in Medicare
Dr. Gau 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. Alexander Gau received $171 in industry payments from 2023 to 2024
CMS Open Payments shows 3 general payments to Dr. Gau from 1 drug or device company from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $171.
General payments to Dr. Gau by program year, 2023 to 2024
Companies that paid Dr. Gau the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexander Gau graduated from College of Osteopathic Medicine of the Pacific
Dr. Gau graduated from College of Osteopathic Medicine of the Pacific in 2021.
- Medical school
- Board certified in 2023 - 2026
Source: Dmand AI Professional Profile Data
Dr. Alexander Gau accepts plans from 1 insurance carrier
Dr. Gau is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Alexander Gau'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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 (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) |
| 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. Alexander Gau
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. Alexander Gau's NPI number?
Dr. Alexander Gau's NPI number is 1801478540. It was assigned on April 22, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Gau?
Dr. Alexander Gau is an emergency medicine physician in Moreno Valley, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Alexander Gau practice?
Dr. Gau practices at 26520 Cactus Ave, Moreno Valley, CA 92555. Dr. Gau's primary practice is Riverside University Medical Center in Moreno Valley, California. Dmand AI also links Dr. Gau to 2 hospitals.
What is Dr. Alexander Gau's office phone number?
The practice phone on file for Dr. Gau is (951) 486-4458.
What is Dr. Alexander Gau's medical license number?
Dr. Gau holds California license 20A20667.
Which hospitals is Dr. Alexander Gau affiliated with?
Dr. Gau is affiliated with Riverside University Health System - Medical Center. Dmand AI links Dr. Gau to 2 more hospitals.
What medical group is Dr. Alexander Gau part of?
Dr. Gau is linked to Vituity.
Does Dr. Alexander Gau accept Medicare?
Yes. CMS data shows Dr. Gau billed Medicare for 289 services in 2024, and Dr. Gau accepts Medicare assignment.
How many Medicare patients does Dr. Alexander Gau see?
CMS counts 218 Medicare patients who saw Dr. Gau in 2024, with an average age of 74.
Is Dr. Alexander Gau board certified?
Yes. Dr. Gau is board certified in 2023 - 2026 by the CA State License.
Show 5 more questionsShow fewer questions
What services does Dr. Alexander Gau bill to Medicare?
In 2024, Dr. Gau's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Alexander Gau go to medical school?
Dr. Gau graduated from College of Osteopathic Medicine of the Pacific in 2021.
Has Dr. Alexander Gau received payments from drug or device companies?
CMS Open Payments shows $171 in general payments to Dr. Gau from 1 company from 2023 to 2024. The largest total came from Inari Medical, Inc.
How long has Dr. Alexander Gau been practicing?
Dr. Gau graduated from medical school in 2021, 5 years ago.
What insurance does Dr. Alexander Gau accept?
Dr. Gau is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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