Dr. Joyce M. Chang, MD
- Medicare services, 2024
- 97
- Medicare patients, 2024
- 130
- Publications
- 10
- MIPS score, 2024
- 99
- Hospital affiliations
- 1
- Practice address
- 505 Parnassus Ave, Box 0296, San Francisco, CA 94143
- Practice phone
- Call (415) 353-2733
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
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. Joyce M. Chang is an anesthesiologist in San Francisco, California
Dr. Chang practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.
Dr. Chang's NPI, 1144507120, was assigned on November 4, 2011. Dr. Chang graduated from Jacobs School of Medicine and Biomedical Sciences in 2011. Dr. Chang holds California license A123895.
- NPI
- 1144507120NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911138581
- NPI enumeration date
- November 4, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 353-2733
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joyce M. Chang practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California
Dr. Chang's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.
- UCSF Helen Diller Medical Center at Parnassus Heights505 Parnassus Ave, Box 0296, San Francisco, CA 94143 · San Francisco CountyPhone(415) 353-2733
Source: Dmand AI Affiliation Data
Dr. Joyce M. Chang is affiliated with 3 sites of care and 3 medical groups
Dr. Chang's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. Chang to 2 more group practices and clinics and 2 medical groups, 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. Joyce M. 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 |
|---|---|
| UCSF Helen Diller Medical Center at Parnassus Heights | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joyce M. 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. Joyce M. Chang billed Medicare for 97 services in 2024
CMS data shows 97 Medicare services from Dr. Chang across 3 procedure codes in 2024, for 130 Medicare patients. Medicare paid $9,857 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
- Office and hospital visits
- 2023: 1042024: 6835%
- Surgery
- 2023: 122024: 29142%
Dr. Chang compared with the California median for anesthesiologists, 2024
- Dr. Chang
- California median
- Medicare services
- 97vs 7235% above
- Medicare patients
- 130vs 1439% below
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. Joyce M. Chang treated 130 Medicare patients in 2024, average age 70
CMS counts 130 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 45% are also on Medicaid. Their average risk score is 2.24, 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 51, with 67% 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
- Women5744%
- Men7356%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis48%
- Diabetes42%
- Mood disorders34%
- Depression32%
- Cancer31%
- Anxiety30%
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 51
Patient panel by sex, all payers
- Women67%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joyce M. Chang scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 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.
- Accepts Medicare assignment
- Yes
Dr. Chang's MIPS scores, performance year 2024
- 99of 100Final score
- 95of 100Quality
- 40of 100Improvement Activities
- 81of 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. Joyce M. Chang has 10 publications on record
Dmand AI links 10 papers to Dr. Chang, published from 2016 to 2025. 2022 was the busiest year, with 2. The most frequent topics are Algorithms, Burnout, Professional and Quality Improvement. Dr. Chang has published most often in Anesthesiol Clin. Dr. Chang's most frequent co-authors are Jina Lee Sinskey, MD, Praveen V. Mummaneni, MD and Valli P. Mummaneni, MD.
Dr. Chang's papers by year, 2016 to 2025
Topics Dr. Chang writes about most
- Algorithms
- Burnout, Professional
- Quality Improvement
- Wakefulness
Dr. Chang's most frequent co-authors
- Jina Lee Sinskey, MD5 shared papers
- Praveen V. Mummaneni, MD3 shared papers
- Valli P. Mummaneni, MD3 shared papers
Recent publications by Dr. Chang
Anesthesiol Clin
Anesthesiol Clin
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. Joyce M. Chang received $84 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Chang from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $84.
Companies that paid Dr. Chang the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joyce M. Chang graduated from Jacobs School of Medicine and Biomedical Sciences
Dr. Chang graduated from Jacobs School of Medicine and Biomedical Sciences in 2011.
- Medical school
- Board certified in anesthesiology
- Board certified in critical care medicine
Source: Dmand AI Professional Profile Data
Dr. Joyce M. Chang accepts plans from 1 insurance carrier
Dr. Chang is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Joyce M. 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)Clinician Public Reporting: Overall MIPS Performance (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. Joyce M. 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. Joyce M. Chang's NPI number?
Dr. Joyce M. Chang's NPI number is 1144507120. It was assigned on November 4, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Joyce M. Chang?
Dr. Joyce M. Chang is an anesthesiologist in San Francisco, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Joyce M. Chang practice?
Dr. Chang practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. Chang's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Dr. Chang to 2 group practices and clinics and 2 medical groups.
What is Dr. Joyce M. Chang's office phone number?
The practice phone on file for Dr. Chang is (415) 353-2733.
What is Dr. Joyce M. Chang's medical license number?
Dr. Chang holds California license A123895.
Which hospitals is Dr. Joyce M. Chang affiliated with?
Dr. Chang practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.
What medical group is Dr. Joyce M. Chang part of?
Dr. Chang is linked to UCSF Pediatrics. Dmand AI links Dr. Chang to 2 more medical groups.
Does Dr. Joyce M. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 97 services in 2024, and Dr. Chang accepts Medicare assignment.
What is Dr. Joyce M. Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
How many Medicare patients does Dr. Joyce M. Chang see?
CMS counts 130 Medicare patients who saw Dr. Chang in 2024, with an average age of 70.
Show 8 more questionsShow fewer questions
Is Dr. Joyce M. Chang board certified?
Yes. Dr. Chang is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Joyce M. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and surgery: heart and blood vessels (36620).
Where did Dr. Joyce M. Chang go to medical school?
Dr. Chang graduated from Jacobs School of Medicine and Biomedical Sciences in 2011.
Has Dr. Joyce M. Chang received payments from drug or device companies?
CMS Open Payments shows $84 in general payments to Dr. Chang from 1 company from 2016 to 2016. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Joyce M. Chang been practicing?
Dr. Chang graduated from medical school in 2011, 15 years ago.
Does Dr. Joyce M. Chang do research?
Dmand AI links 10 publications to Dr. Chang, published from 2016 to 2025.
Who does Dr. Joyce M. Chang publish with?
Dr. Chang's most frequent co-authors are Jina Lee Sinskey, MD (5 shared papers), Praveen V. Mummaneni, MD (3 shared papers) and Valli P. Mummaneni, MD (3 shared papers).
What insurance does Dr. Joyce M. Chang accept?
Dr. Chang is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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