J Am Coll Radiol
Dr. Connie Yachan Chang, MD, PhD
- Medicare services, 2024
- 133
- Medicare patients, 2024
- 223
- Publications
- 157
- Hospital affiliations
- 2
- Industry payments
- $917
- Practice address
- 4001 J St, Sacramento, CA 95819
- Practice phone
- Call (916) 453-4453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Connie Yachan Chang is an anesthesiologist in Sacramento, California
Dr. Chang practices at Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health.
Dr. Chang's NPI, 1467879460, was assigned on March 27, 2014. Dr. Chang graduated from Rutgers New Jersey Medical School in 2014. Dr. Chang holds California license A153924.
- NPI
- 1467879460NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183974702
- NPI enumeration date
- March 27, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 453-4453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Connie Yachan Chang practices at Dignity Health - Mercy General Hospital in Sacramento, California
Dr. Chang's primary practice is Dignity Health - Mercy General Hospital, at 4001 J St, Sacramento, CA 95819 in Sacramento County. The practice phone is (916) 453-4453.
- Dignity Health - Mercy General Hospital4001 J St, Sacramento, CA 95819 · Sacramento CountyPhone(916) 453-4453
Source: Dmand AI Affiliation Data
Dr. Connie Yachan Chang is affiliated with 4 sites of care and 2 medical groups
Dr. Chang's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. The medical group on file is Vituity. Dmand AI also links Dr. Chang to 1 more hospital, 2 group practices and clinics 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. Connie Yachan 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 |
|---|---|
| Dignity Health - Mercy General Hospital | 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. Connie Yachan Chang is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Chang is board certified in anesthesiology by the American Board of Anesthesiology. Dr. Chang is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Chang
Counts of anesthesiologists 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. Connie Yachan Chang billed Medicare for 133 services in 2024
CMS data shows 133 Medicare services from Dr. Chang across 5 procedure codes in 2024, for 223 Medicare patients. Medicare paid $20,203 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1762024: 13324%
Dr. Chang compared with the California median for anesthesiologists, 2024
- Dr. Chang
- California median
- Medicare services
- 133vs 7285% above
- Medicare patients
- 223vs 14356% above
Medians across 5,562 anesthesiologists 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 anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Connie Yachan Chang treated 223 Medicare patients in 2024, average age 72
CMS counts 223 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 59, with 60% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women13360%
- Men9040%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Atrial fibrillation26%
- Diabetes26%
- Ischemic heart disease23%
- Mood disorders22%
- Anxiety21%
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 59
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Connie Yachan Chang takes part in Medicare
Dr. Chang 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. Connie Yachan Chang has 157 publications on record
Dmand AI links 157 papers to Dr. Chang, published from 2006 to 2025. 2024 was the busiest year, with 14. The most frequent topics are Magnetic Resonance Imaging, Tomography, X-Ray Computed and Bone Neoplasms. Dr. Chang has published most often in Skeletal Radiol. Dr. Chang's most frequent co-authors are Frank Joseph Simeone, MD, Soterios Gyftopoulos, MD and Atul Kumar Taneja, MD, PhD.
Dr. Chang's papers by year, 2016 to 2025
Topics Dr. Chang writes about most
- Magnetic Resonance Imaging
- Tomography, X-Ray Computed
- Bone Neoplasms
- Image-Guided Biopsy
- Radiography, Interventional
- Adrenal Cortex Hormones
- Diagnosis, Differential
- Fluoroscopy
Dr. Chang's most frequent co-authors
- Frank Joseph Simeone, MD27 shared papers
- Soterios Gyftopoulos, MD11 shared papers
- Atul Kumar Taneja, MD, PhD9 shared papers
Recent publications by Dr. Chang
Acad Radiol
See who Dr. Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chang works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Connie Yachan Chang received $917 in industry payments from 2018 to 2025
CMS Open Payments shows 34 general payments to Dr. Chang from 14 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $144.
General payments to Dr. Chang by program year, 2018 to 2025
Companies that paid Dr. Chang the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Connie Yachan Chang graduated from Rutgers New Jersey Medical School
Dr. Chang graduated from Rutgers New Jersey Medical School in 2014.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Connie Yachan Chang accepts plans from 2 insurance carriers
Dr. Chang is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
- NV State Medicaid
Plan types Dr. Chang accepts, by number of carriers
- Medicaid1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Connie Yachan 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 | 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Connie Yachan 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. Connie Yachan Chang's NPI number?
Dr. Connie Yachan Chang's NPI number is 1467879460. It was assigned on March 27, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Connie Yachan Chang?
Dr. Connie Yachan Chang is an anesthesiologist in Sacramento, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Connie Yachan Chang practice?
Dr. Chang practices at 4001 J St, Sacramento, CA 95819. Dr. Chang's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dmand AI also links Dr. Chang to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Connie Yachan Chang's office phone number?
The practice phone on file for Dr. Chang is (916) 453-4453.
What is Dr. Connie Yachan Chang's medical license number?
Dr. Chang holds California license A153924.
Which hospitals is Dr. Connie Yachan Chang affiliated with?
Dr. Chang practices at Dignity Health - Mercy General Hospital in Sacramento, California. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Connie Yachan Chang part of?
Dr. Chang is linked to Vituity. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. Connie Yachan Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 133 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Connie Yachan Chang see?
CMS counts 223 Medicare patients who saw Dr. Chang in 2024, with an average age of 72.
Is Dr. Connie Yachan Chang board certified?
Yes. Dr. Chang is board certified in anesthesiology by the American Board of Anesthesiology.
Show 7 more questionsShow fewer questions
What services does Dr. Connie Yachan Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were anesthesia (00811), anesthesia (00537) and anesthesia (00813).
Where did Dr. Connie Yachan Chang go to medical school?
Dr. Chang graduated from Rutgers New Jersey Medical School in 2014.
Has Dr. Connie Yachan Chang received payments from drug or device companies?
CMS Open Payments shows $917 in general payments to Dr. Chang from 14 companies from 2018 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Connie Yachan Chang been practicing?
Dr. Chang graduated from medical school in 2014, 12 years ago.
Does Dr. Connie Yachan Chang do research?
Dmand AI links 157 publications to Dr. Chang, published from 2006 to 2025.
Who does Dr. Connie Yachan Chang publish with?
Dr. Chang's most frequent co-authors are Frank Joseph Simeone, MD (27 shared papers), Soterios Gyftopoulos, MD (11 shared papers) and Atul Kumar Taneja, MD, PhD (9 shared papers).
What insurance does Dr. Connie Yachan Chang accept?
Dr. Chang is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.
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