Dr. Robert Chang, MD
- Medicare patients, 2024
- 31
- Part D claims, 2024
- 1,509
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 4
- Practice address
- 950 S Eastern Ave, Los Angeles, CA 90022
- Practice phone
- Call (562) 862-0001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Downey Landing Dialysis Center
Los Angeles, California
Find Dr. Chang'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. Robert Chang is a nephrologist in Los Angeles, California
Dr. Chang practices at Downey Landing Dialysis Center in Los Angeles, California.
Dr. Chang's NPI, 1992894885, was assigned on October 11, 2006. Dr. Chang graduated from Boston University School Of Medicine in 2002. Dr. Chang holds California license A85088.
- NPI
- 1992894885NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608957931
- NPI enumeration date
- October 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (562) 862-0001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Chang practices at Downey Landing Dialysis Center in Los Angeles, California
Dr. Chang's primary practice is Downey Landing Dialysis Center, at 950 S Eastern Ave, Los Angeles, CA 90022 in Los Angeles County. The practice phone is (562) 862-0001.
- Downey Landing Dialysis Center950 S Eastern Ave, Los Angeles, CA 90022 · Los Angeles CountyPhone(562) 862-0001
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert Chang is affiliated with 5 sites of care and 1 medical group
Dr. Chang's primary practice is Downey Landing Dialysis Center in Los Angeles, California. Dr. Chang is also affiliated with Downey Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chang to 2 more dialysis centers and 1 group practice or clinic, 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. Robert Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Downey Landing Dialysis Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Chang is one of 1,401 nephrologists in California
Nephrology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Chang is board certified in nephrology by the American Board of Internal Medicine. Dr. Chang is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic kidney disease among the conditions Dr. Chang treats.
Nephrologists near Dr. Chang
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. Robert Chang treated 31 Medicare patients in 2024, average age 60
CMS counts 31 Medicare patients who saw Dr. Chang in 2024. The largest group is under 65, with 19 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 61% are also on Medicaid. Their average risk score is 5.89, 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. Chang's median patient age at 67, with 47% women.
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chang's Medicare patients by sex, 2024
- Women1445%
- Men1755%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol71%
- Diabetes68%
- Heart failure45%
- Ischemic heart disease42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chang'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
- Women47%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Chang wrote 1,509 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 1,509 Medicare Part D claims for 354 patients. 91% of them were for generic drugs. CMS names the drug for 1,342 of them, across 30 drugs with 11 or more claims each, at $115,398 in total drug cost.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic1,368 claims91%
- Brand-name120 claims8%
- Other21 claims1%
Dr. Chang'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. Chang's Part D claims, 2024
- Antibiotics3%46 of 1,509 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Dr. Robert Chang offers telehealth to Medicare patients
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chang as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert Chang has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chang, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Chang
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Robert Chang graduated from Boston University School Of Medicine
Dr. Chang graduated from Boston University School Of Medicine in 2002.
- Medical school
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Robert Chang accepts plans from 4 insurance carriers
Dr. Chang is in network with 4 carriers, including Aetna, Kaiser Permanente and Molina. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- Kaiser Permanente
- Molina
- CMS Medicare
Plan types Dr. Chang accepts, by number of carriers
- HMO3
- Medicare3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Chang'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 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) |
| 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. Robert Chang
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. Robert Chang's NPI number?
Dr. Robert Chang's NPI number is 1992894885. It was assigned on October 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Chang?
Dr. Robert Chang is a nephrologist in Los Angeles, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Robert Chang practice?
Dr. Chang practices at 950 S Eastern Ave, Los Angeles, CA 90022. Dr. Chang's primary practice is Downey Landing Dialysis Center in Los Angeles, California. Dmand AI also links Dr. Chang to 2 dialysis centers and 1 group practice or clinic.
What is Dr. Robert Chang's office phone number?
The practice phone on file for Dr. Chang is (562) 862-0001.
What is Dr. Robert Chang's medical license number?
Dr. Chang holds California license A85088.
Which hospitals is Dr. Robert Chang affiliated with?
Dr. Chang is affiliated with Downey Medical Center.
What medical group is Dr. Robert Chang part of?
Dr. Chang is linked to Southern California Permanente Medical Group.
Does Dr. Robert Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Does Dr. Robert Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
How many Medicare patients does Dr. Robert Chang see?
CMS counts 31 Medicare patients who saw Dr. Chang in 2024, with an average age of 60.
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Is Dr. Robert Chang board certified?
Yes. Dr. Chang is board certified in nephrology by the American Board of Internal Medicine.
Where did Dr. Robert Chang go to medical school?
Dr. Chang graduated from Boston University School Of Medicine in 2002.
What drugs does Dr. Robert Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Sevelamer Carbonate, Atorvastatin Calcium and Furosemide.
How long has Dr. Robert Chang been practicing?
Dr. Chang graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Robert Chang accept?
Dr. Chang is in network with 4 carriers, including Aetna, Kaiser Permanente and Molina. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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