Dr. Richard Chang, MD
- Medicare services, 2024
- 12,085
- Medicare patients, 2024
- 368
- Part D claims, 2024
- 329
- MIPS score, 2024
- 90
- Hospital affiliations
- 4
- Practice address
- 1081 Us-22, Bridgewater, NJ 08807
- Practice phone
- Call (908) 809-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ambulatory Surgical Center of Somerset
Bridgewater, New Jersey
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. Richard Chang is an orthopedic surgeon in Bridgewater, New Jersey
Dr. Chang practices at Ambulatory Surgical Center of Somerset in Bridgewater, New Jersey.
Dr. Chang's NPI, 1790789618, was assigned on June 9, 2005. Dr. Chang graduated from New York University School of Medicine in 1994. Dr. Chang holds New Jersey license 25MA07577300.
- NPI
- 1790789618NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880781475
- NPI enumeration date
- June 9, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (908) 809-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard Chang practices at Ambulatory Surgical Center of Somerset in Bridgewater, New Jersey
Dr. Chang's primary practice is Ambulatory Surgical Center of Somerset, at 1081 Us-22, Bridgewater, NJ 08807 in Somerset County. The practice phone is (908) 809-1000.
- Ambulatory Surgical Center of Somerset1081 Us-22, Bridgewater, NJ 08807 · Somerset CountyPhone(908) 809-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Richard Chang is affiliated with 6 sites of care and 1 medical group
Dr. Chang's primary practice is Ambulatory Surgical Center of Somerset in Bridgewater, New Jersey. Dr. Chang is also affiliated with St. Joseph's University Medical Center. The medical group on file is MidJersey Orthopaedics. Dmand AI also links Dr. Chang to 3 more hospitals and 1 group practice or clinic, 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. Richard Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ambulatory Surgical Center of Somerset | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard Chang is one of 644 orthopedic surgeons in New Jersey
Orthopaedic surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chang is licensed in New Jersey.
Specialties and state licenses
- Orthopaedic surgery, New JerseyPrimary
Orthopedic surgeons near Dr. Chang
Counts of orthopedic surgeons 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. Richard Chang billed Medicare for 12,085 services in 2024
CMS data shows 12,085 Medicare services from Dr. Chang across 20 procedure codes in 2024, for 368 Medicare patients. Medicare paid $95,876 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2402024: 10,6914355%
- Office and hospital visits
- 2023: 5962024: 6255%
- Imaging
- 2023: 5022024: 4824%
- Surgery
- 2023: 2572024: 28712%
Where Dr. Chang's Medicare services took place, 2024
- In an office12,052100%
- In a facility330%
Dr. Chang compared with the New Jersey median for orthopedic surgeons, 2024
- Dr. Chang
- New Jersey median
- Medicare services
- 12,085vs 1,3269.1 times
- Medicare patients
- 368vs 28031% above
- Part D claims
- 265vs 793.4 times
Medians across 604 orthopedic surgeons in New Jersey 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 orthopedic surgeons in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard Chang treated 368 Medicare patients in 2024, average age 75
CMS counts 368 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 149 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 61, with 52% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women21659%
- Men15241%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis61%
- Ischemic heart disease30%
- Diabetes29%
- Anxiety26%
- Mood disorders24%
- Depression21%
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 61
Patient panel by sex, all payers
- Women52%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard Chang wrote 329 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 329 Medicare Part D claims for 226 patients. 95% of them were for generic drugs. CMS names the drug for 265 of them, across 6 drugs with 11 or more claims each, at $1,573 in total drug cost. In 2023, CMS named 259 claims across 8 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic313 claims95%
- Brand-name16 claims5%
Dr. 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 Dr. Chang's Part D claims, 2024
- Opioids7%22 of 329 claims
- Antibiotics4%13 of 329 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: 2592024: 2652%
Drugs named by CMS: 6 in 2024, 8 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
Dr. Richard Chang scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 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
- 90of 100Final score
- 79.5of 100Quality
- 96of 100Promoting Interoperability
- 40of 100Improvement Activities
- 90of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper limb (arm) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Richard Chang received $4,173 in industry payments from 2016 to 2025
CMS Open Payments shows 74 general payments to Dr. Chang from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 59% of the total. Maxx Health Inc paid the most, $1,902.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
- Food and beverage$2,45559%
- Consulting fees$1,35032%
- Travel and lodging$1895%
- Entertainment$852%
- Other$942%
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard Chang graduated from New York University School of Medicine
Dr. Chang graduated from New York University School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (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 |
| 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. Richard 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. Richard Chang's NPI number?
Dr. Richard Chang's NPI number is 1790789618. It was assigned on June 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard Chang?
Dr. Richard Chang is an orthopedic surgeon in Bridgewater, New Jersey. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Richard Chang practice?
Dr. Chang practices at 1081 Us-22, Bridgewater, NJ 08807. Dr. Chang's primary practice is Ambulatory Surgical Center of Somerset in Bridgewater, New Jersey. Dmand AI also links Dr. Chang to 3 hospitals and 1 group practice or clinic.
What is Dr. Richard Chang's office phone number?
The practice phone on file for Dr. Chang is (908) 809-1000.
What is Dr. Richard Chang's medical license number?
Dr. Chang holds New Jersey license 25MA07577300.
Which hospitals is Dr. Richard Chang affiliated with?
Dr. Chang is affiliated with St. Joseph's University Medical Center. Dmand AI links Dr. Chang to 3 more hospitals.
What medical group is Dr. Richard Chang part of?
Dr. Chang is linked to MidJersey Orthopaedics.
Does Dr. Richard Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 12,085 services in 2024, and Dr. Chang accepts Medicare assignment.
What is Dr. Richard Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Dr. Richard Chang see?
CMS counts 368 Medicare patients who saw Dr. Chang in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Richard Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99214) and office visit, new patient (99203).
Where did Dr. Richard Chang go to medical school?
Dr. Chang graduated from New York University School of Medicine in 1994.
What drugs does Dr. Richard Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Meloxicam, Methylprednisolone and Naproxen.
Has Dr. Richard Chang received payments from drug or device companies?
CMS Open Payments shows $4,173 in general payments to Dr. Chang from 32 companies from 2016 to 2025. The largest total came from Maxx Health Inc.
How long has Dr. Richard Chang been practicing?
Dr. Chang graduated from medical school in 1994, 32 years ago.
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