Dr. Michael Chau, DO
- Medicare services, 2023
- 563
- Medicare patients, 2024
- 19
- Part D claims, 2024
- 1,176
- Hospital affiliations
- 1
- Industry payments
- $2,178
- Practice address
- 1181 Broadway, Suite 5, Chula Vista, CA 91911
- Practice phone
- Call (619) 585-0016
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
USRC Chula Vista Broadway
Dialysis Center - Independent · Chula Vista, California
Find Dr. Chau'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. Michael Chau is a nephrologist in Chula Vista, California
Dr. Chau practices at USRC Chula Vista Broadway in Chula Vista, California.
Dr. Chau's NPI, 1588036719, was assigned on October 27, 2015. Dr. Chau graduated from WesternU College of Osteopathic Medicine of the Pacific in 2016. Dr. Chau holds California license 20A18669.
- NPI
- 1588036719NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911234695
- NPI enumeration date
- October 27, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 585-0016
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Chau practices at USRC Chula Vista Broadway in Chula Vista, California
Dr. Chau's primary practice is USRC Chula Vista Broadway, at 1181 Broadway, Suite 5, Chula Vista, CA 91911 in San Diego County. The practice phone is (619) 585-0016.
- USRC Chula Vista Broadway1181 Broadway, Suite 5, Chula Vista, CA 91911 · San Diego CountyPhone(619) 585-0016
Source: Dmand AI Affiliation Data
Dr. Michael Chau is affiliated with 3 sites of care and 2 medical groups
Dr. Chau's primary practice is USRC Chula Vista Broadway in Chula Vista, California. Dr. Chau is also affiliated with Kaiser Permanente Zion Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chau to 1 more dialysis center and 1 medical group, 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. Michael Chau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chau practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| USRC Chula Vista Broadway | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Chau is one of 1,401 nephrologists in California
Nephrology is Dr. Chau's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Chau is board certified in internal medicine by the American Board of Internal Medicine. Dr. Chau is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure and chronic kidney disease among the conditions Dr. Chau treats.
Nephrologists near Dr. Chau
Counts of nephrologists 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. Michael Chau billed Medicare for 563 services in 2023
CMS data shows 563 Medicare services from Dr. Chau across 6 procedure codes in 2023, for 19 Medicare patients. Medicare paid $70,258 for them.
Dr. Chau's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1,0792023: 56348%
- Tests and treatments
- 2022: 212023: 0100%
Where Dr. Chau's Medicare services took place, 2023
- In an office7213%
- In a facility49187%
Dr. Chau compared with the California median for nephrologists, 2023
- Dr. Chau
- California median
- Medicare services
- 563vs 1,08448% below
- Medicare patients
- 19vs 30794% below
- Part D claims
- 977vs 955Close to median
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Chau's most billed Medicare procedure codes, 2023
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. Chau?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chau and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Chau treated 19 Medicare patients in 2024, average age 65
CMS counts 19 Medicare patients who saw Dr. Chau in 2024. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 5.57, 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. Chau's median patient age at 66, with 44% women.
Chronic conditions among Dr. Chau's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Heart failure63%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Chau wrote 1,176 Medicare Part D claims in 2024
In 2024, Dr. Chau wrote 1,176 Medicare Part D claims for 348 patients. 92% of them were for generic drugs. CMS names the drug for 977 of them, across 27 drugs with 11 or more claims each, at $92,778 in total drug cost. In 2023, CMS named 723 claims across 20 drugs.
Dr. Chau's Part D claims by kind of drug, 2024
- Generic1,078 claims92%
- Brand-name98 claims8%
Dr. Chau'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. Chau's Part D claims, 2024
- Antibiotics2%25 of 1,176 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: 7232024: 97735%
Drugs named by CMS: 27 in 2024, 20 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
How Dr. Michael Chau takes part in Medicare
Dr. Chau 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. Michael Chau received $2,178 in industry payments from 2019 to 2025
CMS Open Payments shows 77 general payments to Dr. Chau from 15 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $528.
General payments to Dr. Chau by program year, 2019 to 2025
General payments to Dr. Chau by kind, 2019 to 2025
- Food and beverage$2,11997%
- Education$583%
Companies that paid Dr. Chau the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Chau graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Chau graduated from WesternU College of Osteopathic Medicine of the Pacific in 2016.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
- Board certified in 2021 - 2026
- Board certified in 2019 - 2020
- Board certified in 2019 - 2021
Source: Dmand AI Professional Profile Data
Dr. Michael Chau accepts plans from 7 insurance carriers
Dr. Chau is in network with 7 carriers, including Elevance, Aetna 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
- Aetna
- Blue Cross Blue Shield of Michigan
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. Chau accepts, by number of carriers
- Medicare5
- PPO5
- HMO4
- POS4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael Chau'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) |
| 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. Michael Chau
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. Michael Chau's NPI number?
Dr. Michael Chau's NPI number is 1588036719. It was assigned on October 27, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Chau?
Dr. Michael Chau is a nephrologist in Chula Vista, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Michael Chau practice?
Dr. Chau practices at 1181 Broadway, Suite 5, Chula Vista, CA 91911. Dr. Chau's primary practice is USRC Chula Vista Broadway in Chula Vista, California. Dmand AI also links Dr. Chau to 1 dialysis center and 1 medical group.
What is Dr. Michael Chau's office phone number?
The practice phone on file for Dr. Chau is (619) 585-0016.
What is Dr. Michael Chau's medical license number?
Dr. Chau holds California license 20A18669.
Which hospitals is Dr. Michael Chau affiliated with?
Dr. Chau is affiliated with Kaiser Permanente Zion Medical Center.
What medical group is Dr. Michael Chau part of?
Dr. Chau is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Chau to 1 more medical group.
Does Dr. Michael Chau accept Medicare?
Yes. CMS data shows Dr. Chau billed Medicare for 563 services in 2023, and Dr. Chau accepts Medicare assignment.
How many Medicare patients does Dr. Michael Chau see?
CMS counts 19 Medicare patients who saw Dr. Chau in 2024, with an average age of 65.
Is Dr. Michael Chau board certified?
Yes. Dr. Chau is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Michael Chau bill to Medicare?
In 2023, Dr. Chau's most billed Medicare services were hospital inpatient care (99233), critical care (99291) and hospital inpatient care (99223).
Where did Dr. Michael Chau go to medical school?
Dr. Chau graduated from WesternU College of Osteopathic Medicine of the Pacific in 2016.
What drugs does Dr. Michael Chau prescribe most?
In 2024 Medicare Part D data, Dr. Chau's most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Lisinopril.
Has Dr. Michael Chau received payments from drug or device companies?
CMS Open Payments shows $2,178 in general payments to Dr. Chau from 15 companies from 2019 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Michael Chau been practicing?
Dr. Chau graduated from medical school in 2016, 10 years ago.
What insurance does Dr. Michael Chau accept?
Dr. Chau is in network with 7 carriers, including Elevance, Aetna 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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