Transpl Infect Dis
Sandy Chang
- Medicare services, 2024
- 172
- Medicare patients, 2024
- 107
- Part D claims, 2024
- 165
- Publications
- 2
- MIPS score, 2024
- 89
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Sandy Chang's professional email, personal email and mobile number
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Sandy Chang is an infectious disease specialist in Loma Linda, California
Sandy Chang practices at Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church.
Sandy Chang's NPI, 1629465737, was assigned on April 16, 2015. Sandy Chang graduated from University of Illinois College of Medicine - Chicago in 2015. Sandy Chang holds California license A146846.
- NPI
- 1629465737NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173875457
- NPI enumeration date
- April 16, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (909) 558-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Sandy Chang practices at Loma Linda University Medical Center in Loma Linda, California
Sandy Chang's primary practice is Loma Linda University Medical Center, at 11234 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-4000.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-4000
Source: Dmand AI Affiliation Data
Sandy Chang is affiliated with 1 site of care and 1 medical group
Sandy Chang's primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Sandy Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Sandy Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Seventh-day Adventist Church and 6.2K+ hospitals, with verified contacts in the same login.
Sandy Chang is one of 1,054 infectious disease specialists in California
Infectious disease is Sandy Chang's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Sandy Chang is board certified in infectious disease by the American Board of Internal Medicine. Sandy Chang is licensed in California.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
Infectious disease specialists near Sandy Chang
Counts of infectious disease specialists 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
Sandy Chang billed Medicare for 172 services in 2024
CMS data shows 172 Medicare services from Sandy Chang across 5 procedure codes in 2024, for 107 Medicare patients. Medicare paid $19,452 for them.
Sandy Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2532024: 17232%
Where Sandy Chang's Medicare services took place, 2024
- In an office5230%
- In a facility12070%
Sandy Chang compared with the California median for infectious disease specialists, 2024
- Sandy Chang
- California median
- Medicare services
- 172vs 42960% below
- Medicare patients
- 107vs 18041% below
- Part D claims
- 82vs 11931% below
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Sandy 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 Sandy Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Sandy Chang and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Sandy Chang treated 107 Medicare patients in 2024, average age 62
CMS counts 107 Medicare patients who saw Sandy Chang in 2024. The largest group is under 65, with 54 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 77% are also on Medicaid. Their average risk score is 4.97, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Sandy Chang's median patient age at 58, with 51% women.
Sandy Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Sandy Chang's Medicare patients by sex, 2024
- Women4845%
- Men5955%
Chronic conditions among Sandy Chang's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes68%
- Heart failure55%
- Arthritis47%
- Ischemic heart disease41%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Sandy 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 58
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Sandy Chang wrote 165 Medicare Part D claims in 2024
In 2024, Sandy Chang wrote 165 Medicare Part D claims for 28 patients. 68% of them were for generic drugs. CMS names the drug for 82 of them, across 6 drugs with 11 or more claims each, at $57,928 in total drug cost. In 2023, CMS named 90 claims across 6 drugs.
Sandy Chang's Part D claims by kind of drug, 2024
- Generic113 claims68%
- Brand-name52 claims32%
Sandy 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 Sandy Chang's Part D claims, 2024
- Antibiotics31%51 of 165 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: 902024: 829%
Drugs named by CMS: 6 in 2024, 6 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
Sandy Chang scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Sandy Chang for performance year 2024, reported as part of a group. Sandy Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Sandy Chang as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Sandy Chang's MIPS scores, performance year 2024
- 89of 100Final score
- 72.1of 100Quality
- 80of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 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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Sandy Chang has 2 publications on record
Dmand AI links 2 papers to Sandy Chang.
Recent publications by Sandy Chang
See who Sandy Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Sandy Chang works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sandy Chang received $20 in industry payments in 2022
CMS Open Payments shows 1 general payment to Sandy Chang from 1 drug or device company in 2022. Education make up the largest share, 100% of the total. Theratechnologies Inc. paid the most, $20.
Companies that paid Sandy Chang the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sandy Chang graduated from University of Illinois College of Medicine - Chicago
Sandy Chang graduated from University of Illinois College of Medicine - Chicago in 2015.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sandy Chang accepts plans from 16 insurance carriers
Sandy Chang is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Molina
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Sandy Chang accepts, by number of carriers
- Medicare9
- PPO9
- HMO7
- POS5
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Sandy 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) |
| 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)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 Sandy 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 Sandy Chang's NPI number?
Sandy Chang's NPI number is 1629465737. It was assigned on April 16, 2015, and it is active in the NPI Registry.
What does Sandy Chang specialize in?
Sandy Chang is an infectious disease specialist in Loma Linda, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Sandy Chang practice?
Sandy Chang practices at 11234 Anderson St, Loma Linda, CA 92354. Sandy Chang's primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church.
What is Sandy Chang's office phone number?
The practice phone on file for Sandy Chang is (909) 558-4000.
What is Sandy Chang's medical license number?
Sandy Chang holds California license A146846.
Which hospitals is Sandy Chang affiliated with?
Sandy Chang practices at Loma Linda University Medical Center in Loma Linda, California.
What medical group is Sandy Chang part of?
Sandy Chang is linked to Loma Linda University Faculty Medical Group (LLUFMG).
Does Sandy Chang accept Medicare?
Yes. CMS data shows Sandy Chang billed Medicare for 172 services in 2024, and Sandy Chang accepts Medicare assignment.
Does Sandy Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Sandy Chang as offering telehealth services.
What is Sandy Chang's MIPS score?
Sandy Chang's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Sandy Chang see?
CMS counts 107 Medicare patients who saw Sandy Chang in 2024, with an average age of 62.
Is Sandy Chang board certified?
Yes. Sandy Chang is board certified in infectious disease by the American Board of Internal Medicine.
What services does Sandy Chang bill to Medicare?
In 2024, Sandy Chang's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99233) and office visit, established patient (99214).
Where did Sandy Chang go to medical school?
Sandy Chang graduated from University of Illinois College of Medicine - Chicago in 2015.
What drugs does Sandy Chang prescribe most?
In 2024 Medicare Part D data, Sandy Chang's most prescribed drugs by claims were Ceftazidime, Fluconazole and Biktarvy.
Has Sandy Chang received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Sandy Chang from 1 company from 2022 to 2022. The largest total came from Theratechnologies Inc.
How long has Sandy Chang been practicing?
Sandy Chang graduated from medical school in 2015, 11 years ago.
Does Sandy Chang do research?
Dmand AI links 2 publications to Sandy Chang.
What insurance does Sandy Chang accept?
Sandy Chang is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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