Dr. Susan S. Chang, MD
- Medicare services, 2024
- 1,275
- Medicare patients, 2024
- 384
- Part D claims, 2024
- 2,591
- Hospital affiliations
- 3
- Industry payments
- $2,350
- Practice address
- 4000 Calle Tecate, Camarillo, CA 93012
- Practice phone
- Call (805) 240-3302
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
College Estates Dialysis
Camarillo, 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. Susan S. Chang is a nephrologist in Camarillo, California
Dr. Chang practices at College Estates Dialysis in Camarillo, California.
Dr. Chang's NPI, 1073673273, was assigned on December 11, 2006. Dr. Chang graduated from University of Colorado Anschutz Medical Campus in 1995. Dr. Chang holds California license A61663.
- NPI
- 1073673273NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517056641
- NPI enumeration date
- December 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 240-3302
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Susan S. Chang practices at College Estates Dialysis in Camarillo, California
Dr. Chang's primary practice is College Estates Dialysis, at 4000 Calle Tecate, Camarillo, CA 93012 in Ventura County. The practice phone is (805) 240-3302.
- College Estates Dialysis4000 Calle Tecate, Camarillo, CA 93012 · Ventura CountyPhone(805) 240-3302
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Susan S. Chang is affiliated with 10 sites of care and 2 medical groups
Dr. Chang's primary practice is College Estates Dialysis in Camarillo, California. Dr. Chang is also affiliated with Community Memorial Hospital - Ventura. The medical group on file is Ventura County Medical Center. Dmand AI also links Dr. Chang to 2 more hospitals, 5 dialysis centers, 1 group practice or clinic and 1 medical group, 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. Susan S. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| College Estates Dialysis | Available with a free account |
| +9 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Susan S. 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 acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances and kidney cysts 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. Susan S. Chang billed Medicare for 1,275 services in 2024
CMS data shows 1,275 Medicare services from Dr. Chang across 11 procedure codes in 2024, for 384 Medicare patients. Medicare paid $177,641 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9172024: 8319%
- Tests and treatments
- 2023: 4442024: 444No change
Where Dr. Chang's Medicare services took place, 2024
- In an office95875%
- In a facility31725%
Dr. Chang compared with the California median for nephrologists, 2024
- Dr. Chang
- California median
- Medicare services
- 1,275vs 1,08418% above
- Medicare patients
- 384vs 30725% above
- Part D claims
- 2,343vs 9552.5 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Chang'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. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Susan S. Chang treated 384 Medicare patients in 2024, average age 75
CMS counts 384 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 139 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 36% are also on Medicaid. Their average risk score is 3.79, 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 70, with 49% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women19451%
- Men19049%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Arthritis48%
- Heart failure47%
- Ischemic heart disease45%
- Mood disorders37%
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 70
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Susan S. Chang wrote 2,591 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 2,591 Medicare Part D claims for 307 patients. 84% of them were for generic drugs. CMS names the drug for 2,343 of them, across 49 drugs with 11 or more claims each, at $367,637 in total drug cost. In 2023, CMS named 2,575 claims across 51 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic2,176 claims84%
- Brand-name415 claims16%
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
- Antibiotics1%38 of 2,591 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: 2,5752024: 2,3439%
Drugs named by CMS: 49 in 2024, 51 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
Dr. Susan S. 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. Susan S. Chang received $2,350 in industry payments from 2016 to 2025
CMS Open Payments shows 65 general payments to Dr. Chang from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Merz North America, Inc. paid the most, $582.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
- Food and beverage$2,31899%
- Education$321%
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Susan S. Chang has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chang, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Chang
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Susan S. Chang graduated from University of Colorado Anschutz Medical Campus
Dr. Chang graduated from University of Colorado Anschutz Medical Campus in 1995.
- Medical school
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Susan S. Chang accepts plans from 12 insurance carriers
Dr. Chang is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- Aspirus Health Plan
- +4 more carriersWith a free account
Plan types Dr. Chang accepts, by number of carriers
- Medicare8
- PPO7
- HMO5
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Susan S. 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 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) |
| 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. Susan S. 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. Susan S. Chang's NPI number?
Dr. Susan S. Chang's NPI number is 1073673273. It was assigned on December 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Susan S. Chang?
Dr. Susan S. Chang is a nephrologist in Camarillo, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Susan S. Chang practice?
Dr. Chang practices at 4000 Calle Tecate, Camarillo, CA 93012. Dr. Chang's primary practice is College Estates Dialysis in Camarillo, California. Dmand AI also links Dr. Chang to 2 hospitals, 5 dialysis centers, 1 group practice or clinic and 1 medical group.
What is Dr. Susan S. Chang's office phone number?
The practice phone on file for Dr. Chang is (805) 240-3302.
What is Dr. Susan S. Chang's medical license number?
Dr. Chang holds California license A61663.
Which hospitals is Dr. Susan S. Chang affiliated with?
Dr. Chang is affiliated with Community Memorial Hospital - Ventura. Dmand AI links Dr. Chang to 2 more hospitals.
What medical group is Dr. Susan S. Chang part of?
Dr. Chang is linked to Ventura County Medical Center. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. Susan S. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 1,275 services in 2024, and Dr. Chang accepts Medicare assignment.
Does Dr. Susan S. Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
How many Medicare patients does Dr. Susan S. Chang see?
CMS counts 384 Medicare patients who saw Dr. Chang in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
Is Dr. Susan S. Chang board certified?
Yes. Dr. Chang is board certified in nephrology by the American Board of Internal Medicine.
What services does Dr. Susan S. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99214), dialysis (90960) and hospital inpatient care (99232).
Where did Dr. Susan S. Chang go to medical school?
Dr. Chang graduated from University of Colorado Anschutz Medical Campus in 1995.
What drugs does Dr. Susan S. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Amlodipine Besylate, Hydralazine HCl and Farxiga.
Has Dr. Susan S. Chang received payments from drug or device companies?
CMS Open Payments shows $2,350 in general payments to Dr. Chang from 20 companies from 2016 to 2025. The largest total came from Merz North America, Inc.
How long has Dr. Susan S. Chang been practicing?
Dr. Chang graduated from medical school in 1995, 31 years ago.
What insurance does Dr. Susan S. Chang accept?
Dr. Chang is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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