Dr. Ruby Chang, MD
- Medicare services, 2024
- 19,784
- Medicare patients, 2024
- 4,685
- Hospital affiliations
- 3
- Industry payments
- $143
- Medical groups
- 6
- Practice address
- 9101 Franklin Sq Dr, Ste 102, Baltimore, MD 21237
- Practice phone
- Call (410) 918-3460
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advanced Radiology - Medical Arts Building
Mammography / Breast Imaging Center · Baltimore, Maryland
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. Ruby Chang is a diagnostic radiologist in Rosedale, Maryland
Dr. Chang practices at Advanced Radiology - Medical Arts Building in Baltimore, Maryland.
Dr. Chang's NPI, 1164459335, was assigned on June 26, 2006. Dr. Chang graduated from Rutgers New Jersey Medical School in 1998. Dr. Chang holds California license A81716.
- NPI
- 1164459335NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719966241
- NPI enumeration date
- June 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 918-3460
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruby Chang practices at Advanced Radiology - Medical Arts Building in Baltimore, Maryland
Dr. Chang's primary practice is Advanced Radiology - Medical Arts Building, at 9101 Franklin Sq Dr, Ste 102, Baltimore, MD 21237. The practice phone is (410) 918-3460.
- Advanced Radiology - Medical Arts Building9101 Franklin Sq Dr, Ste 102, Baltimore, MD 21237Phone(410) 918-3460
Source: Dmand AI Affiliation Data
Dr. Ruby Chang is affiliated with 10 sites of care and 6 medical groups
Dr. Chang's primary practice is Advanced Radiology - Medical Arts Building in Baltimore, Maryland. Dr. Chang is also affiliated with University of Maryland Upper Chesapeake Medical Center Bel Air. The medical group on file is John Muir Health. Dmand AI also links Dr. Chang to 2 more hospitals, 6 group practices and clinics and 5 medical groups, each named with a free account. Dr. Chang's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruby Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advanced Radiology - Medical Arts Building | Available with a free account |
| +9 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruby Chang is one of 626 diagnostic radiologists in Maryland
Diagnostic radiology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Chang is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Chang's licenses on file in 3 states: California, Maryland and New York.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
- Maryland license
- New York license
Diagnostic radiologists near Dr. Chang
Counts of diagnostic radiologists 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. Ruby Chang billed Medicare for 19,784 services in 2024
CMS data shows 19,784 Medicare services from Dr. Chang across 26 procedure codes in 2024, for 4,685 Medicare patients. Medicare paid $782,508 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 24,1352024: 11,50552%
- Imaging
- 2023: 8,9792024: 8,2288%
- Surgery
- 2023: 482024: 516%
Where Dr. Chang's Medicare services took place, 2024
- In an office19,30698%
- In a facility4782%
Dr. Chang compared with the Maryland median for diagnostic radiologists, 2024
- Dr. Chang
- Maryland median
- Medicare services
- 19,784vs 5,2413.8 times
- Medicare patients
- 4,685vs 1,9442.4 times
Medians across 602 diagnostic radiologists in Maryland 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other diagnostic radiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruby Chang treated 4,685 Medicare patients in 2024, average age 73
CMS counts 4,685 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 2,589 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 9% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 58, with 83% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women4,38894%
- Men2976%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis49%
- Diabetes30%
- Anxiety26%
- Mood disorders26%
- Depression23%
- Osteoporosis23%
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 58
Patient panel by sex, all payers
- Women83%
- Men16%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Ruby 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. Ruby Chang received $143 in industry payments from 2016 to 2024
CMS Open Payments shows 7 general payments to Dr. Chang from 6 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Incyte Corporation paid the most, $38.
General payments to Dr. Chang by program year, 2016 to 2024
Companies that paid Dr. Chang the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ruby Chang graduated from Rutgers New Jersey Medical School
Dr. Chang graduated from Rutgers New Jersey Medical School in 1998.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Ruby Chang accepts plans from 8 insurance carriers
Dr. Chang is in network with 8 carriers, including Excellus BlueCross BlueShield, United Healthcare and Aspirus Health Plan. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CareFirst BlueCross BlueShield
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Chang accepts, by number of carriers
- Medicare4
- PPO4
- POS3
- EPO2
- HMO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Ruby 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) |
| 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. Ruby 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. Ruby Chang's NPI number?
Dr. Ruby Chang's NPI number is 1164459335. It was assigned on June 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruby Chang?
Dr. Ruby Chang is a diagnostic radiologist in Rosedale, Maryland. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Ruby Chang practice?
Dr. Chang practices at 9101 Franklin Sq Dr, Ste 102, Baltimore, MD 21237. Dr. Chang's primary practice is Advanced Radiology - Medical Arts Building in Baltimore, Maryland. Dmand AI also links Dr. Chang to 2 hospitals, 6 group practices and clinics and 5 medical groups.
What is Dr. Ruby Chang's office phone number?
The practice phone on file for Dr. Chang is (410) 918-3460.
What is Dr. Ruby Chang's medical license number?
Dr. Chang holds California license A81716, one of the licenses on file in 3 states.
Which states has Dr. Ruby Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in California (2003 to 2027), Maryland (2022 to 2026) and New York (1999 to 2006).
Which hospitals is Dr. Ruby Chang affiliated with?
Dr. Chang is affiliated with University of Maryland Upper Chesapeake Medical Center Bel Air. Dmand AI links Dr. Chang to 2 more hospitals.
What medical group is Dr. Ruby Chang part of?
Dr. Chang is linked to John Muir Health. Dmand AI links Dr. Chang to 5 more medical groups.
Does Dr. Ruby Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 19,784 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Ruby Chang see?
CMS counts 4,685 Medicare patients who saw Dr. Chang in 2024, with an average age of 73.
Show 6 more questionsShow fewer questions
Is Dr. Ruby Chang board certified?
Yes. Dr. Chang is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Ruby Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were medical supplies or transport (A9575), radiation oncology (77063) and radiation oncology (77067).
Where did Dr. Ruby Chang go to medical school?
Dr. Chang graduated from Rutgers New Jersey Medical School in 1998.
Has Dr. Ruby Chang received payments from drug or device companies?
CMS Open Payments shows $143 in general payments to Dr. Chang from 6 companies from 2016 to 2024. The largest total came from Incyte Corporation.
How long has Dr. Ruby Chang been practicing?
Dr. Chang graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Ruby Chang accept?
Dr. Chang is in network with 8 carriers, including Excellus BlueCross BlueShield, United Healthcare and Aspirus Health Plan. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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