Dr. Andrew E-Kong Chang, MD
- Medicare patients, 2024
- 23
- Part D claims, 2024
- 20
- MIPS score, 2024
- 92
- Hospital affiliations
- 1
- Industry payments
- $10,153
- Practice address
- 5 Medical Plz, Roseville, CA 95661
- Practice phone
- Call (916) 781-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roseville Surgical Alliance Surgery Center, Inc.
Roseville, 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. Andrew E-Kong Chang is an OB-GYN in Roseville, California
Dr. Chang practices at Roseville Surgical Alliance Surgery Center, Inc. in Roseville, California.
Dr. Chang's NPI, 1356784441, was assigned on April 9, 2013. Dr. Chang holds Ohio license 35.137264.
- NPI
- 1356784441NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870869423
- NPI enumeration date
- April 9, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 781-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew E-Kong Chang practices at Roseville Surgical Alliance Surgery Center, Inc. in Roseville, California
Dr. Chang's primary practice is Roseville Surgical Alliance Surgery Center, Inc., at 5 Medical Plz, Roseville, CA 95661 in Placer County. The practice phone is (916) 781-2500.
- Roseville Surgical Alliance Surgery Center, Inc.5 Medical Plz, Roseville, CA 95661 · Placer CountyPhone(916) 781-2500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Andrew E-Kong Chang is affiliated with 4 sites of care and 2 medical groups
Dr. Chang's primary practice is Roseville Surgical Alliance Surgery Center, Inc. in Roseville, California. Dr. Chang is also affiliated with Sutter Roseville Medical Center. The medical group on file is Associates in Women's Health Care. Dmand AI also links Dr. Chang to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Andrew E-Kong Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roseville Surgical Alliance Surgery Center, Inc. | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew E-Kong Chang is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dmand AI has Dr. Chang's licenses on file in 2 states: Ohio and Kentucky.
Specialties and state licenses
- Obstetrics and gynecology, OhioPrimary
- Kentucky license
OB-GYNs near Dr. Chang
Counts of OB-GYNs 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. Andrew E-Kong Chang treated 23 Medicare patients in 2024, average age 71
CMS counts 23 Medicare patients who saw Dr. Chang in 2024. 74% of them have high cholesterol, and 48% have anxiety. Their average risk score is 0.80, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 36, with 96% women.
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol74%
- Anxiety48%
- Arthritis48%
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 36
Patient panel by sex, all payers
- Women96%
- Men2%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew E-Kong Chang wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 20 Medicare Part D claims for 12 patients. 95% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $66 in total drug cost.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Dr. Chang's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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. Andrew E-Kong Chang scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Chang for performance year 2024, reported as part of a group. 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
Dr. Chang's MIPS scores, performance year 2024
- 92of 100Final score
- 98.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Andrew E-Kong Chang received $10,153 in industry payments from 2017 to 2025
CMS Open Payments shows 113 general payments to Dr. Chang from 36 drug and device companies from 2017 to 2025. Education make up the largest share, 60% of the total. Intuitive Surgical, Inc. paid the most, $7,065.
General payments to Dr. Chang by program year, 2017 to 2025
General payments to Dr. Chang by kind, 2017 to 2025
- Education$6,11960%
- Food and beverage$2,09821%
- Travel and lodging$1,03610%
- Speaker and faculty fees$9009%
Companies that paid Dr. Chang the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Andrew E-Kong Chang's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Andrew E-Kong 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. Andrew E-Kong Chang's NPI number?
Dr. Andrew E-Kong Chang's NPI number is 1356784441. It was assigned on April 9, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew E-Kong Chang?
Dr. Andrew E-Kong Chang is an OB-GYN in Roseville, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Andrew E-Kong Chang practice?
Dr. Chang practices at 5 Medical Plz, Roseville, CA 95661. Dr. Chang's primary practice is Roseville Surgical Alliance Surgery Center, Inc. in Roseville, California. Dmand AI also links Dr. Chang to 2 group practices and clinics and 1 medical group.
What is Dr. Andrew E-Kong Chang's office phone number?
The practice phone on file for Dr. Chang is (916) 781-2500.
What is Dr. Andrew E-Kong Chang's medical license number?
Dr. Chang holds Ohio license 35.137264, one of the licenses on file in 2 states.
Which states has Dr. Andrew E-Kong Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in Ohio and Kentucky.
Which hospitals is Dr. Andrew E-Kong Chang affiliated with?
Dr. Chang is affiliated with Sutter Roseville Medical Center.
What medical group is Dr. Andrew E-Kong Chang part of?
Dr. Chang is linked to Associates in Women's Health Care. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. Andrew E-Kong Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Does Dr. Andrew E-Kong Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
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What is Dr. Andrew E-Kong Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Andrew E-Kong Chang see?
CMS counts 23 Medicare patients who saw Dr. Chang in 2024, with an average age of 71.
What drugs does Dr. Andrew E-Kong Chang prescribe most?
In 2022 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Fluconazole.
Has Dr. Andrew E-Kong Chang received payments from drug or device companies?
CMS Open Payments shows $10,153 in general payments to Dr. Chang from 36 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Andrew E-Kong Chang been practicing?
Dr. Chang graduated from medical school in 2013, 13 years ago.
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