Dr. Mark Chang, MD
- Medicare services, 2024
- 5,208
- Medicare patients, 2024
- 918
- Part D claims, 2024
- 2,608
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 2 Medical Park Dr, West Nyack, NY 10994
- Practice phone
- Call (516) 931-0041
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Integrated Medical Professionals
West Nyack, New York
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. Mark Chang is a urologist in West Nyack, New York
Dr. Chang practices at Integrated Medical Professionals in West Nyack, New York.
Dr. Chang's NPI, 1356564934, was assigned on April 11, 2007. Dr. Chang graduated from Jefferson Medical College of Thomas Jefferson University in 1999. Dr. Chang holds New York license 240243-1.
- NPI
- 1356564934NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183723182
- NPI enumeration date
- April 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (516) 931-0041
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Chang practices at Integrated Medical Professionals in West Nyack, New York
Dr. Chang's primary practice is Integrated Medical Professionals, at 2 Medical Park Dr, West Nyack, NY 10994 in Rockland County. The practice phone is (516) 931-0041.
- Integrated Medical Professionals2 Medical Park Dr, West Nyack, NY 10994 · Rockland CountyPhone(516) 931-0041
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Chang is affiliated with 5 sites of care and 2 medical groups
Dr. Chang's primary practice is Integrated Medical Professionals in West Nyack, New York. Dr. Chang is also affiliated with Montefiore Nyack Hospital. The medical group on file is Integrated Medical Professionals. 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: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark 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 |
|---|---|
| Integrated Medical Professionals | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Chang is one of 919 urologists in New York
Urology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Chang is licensed in New York.
Specialties and state licenses
- Urology, New YorkPrimary
Urologists near Dr. Chang
Counts of urologists 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. Mark Chang billed Medicare for 5,208 services in 2024
CMS data shows 5,208 Medicare services from Dr. Chang across 14 procedure codes in 2024, for 918 Medicare patients. Medicare paid $228,860 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,7912024: 1,60510%
- Surgery
- 2023: 1,4912024: 1,4721%
- Other services
- 2023: 212024: 1,2525862%
- Lab and pathology
- 2023: 8492024: 8794%
- Drugs given in the office
- 2023: 1082024: 0100%
- Imaging
- 2023: 222024: 0100%
- Tests and treatments
- 2023: 362024: 0100%
Where Dr. Chang's Medicare services took place, 2024
- In an office5,05197%
- In a facility1573%
Dr. Chang compared with the New York median for urologists, 2024
- Dr. Chang
- New York median
- Medicare services
- 5,208vs 8496.1 times
- Medicare patients
- 918vs 3602.5 times
- Part D claims
- 2,492vs 5894.2 times
Medians across 885 urologists in New York 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 urologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Chang treated 918 Medicare patients in 2024, average age 76
CMS counts 918 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 397 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 71, with 19% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women20322%
- Men71578%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes38%
- Ischemic heart disease36%
- Cancer24%
- Chronic kidney disease22%
- Atrial fibrillation20%
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 71
Patient panel by sex, all payers
- Women19%
- Men78%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Chang wrote 2,608 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 2,608 Medicare Part D claims for 589 patients. 89% of them were for generic drugs. CMS names the drug for 2,492 of them, across 20 drugs with 11 or more claims each, at $236,776 in total drug cost. In 2023, CMS named 2,563 claims across 24 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic2,329 claims89%
- Brand-name279 claims11%
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
- Antibiotics8%197 of 2,608 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: 2,5632024: 2,4923%
Drugs named by CMS: 20 in 2024, 24 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. Mark Chang scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 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. CMS lists Dr. Chang as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chang's MIPS scores, performance year 2024
- 93of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Prostate resection: 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. Mark Chang received $6,232 in industry payments from 2016 to 2025
CMS Open Payments shows 277 general payments to Dr. Chang from 39 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Astellas Pharma US Inc paid the most, $1,123.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
- Food and beverage$5,73792%
- Education$4958%
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. Mark Chang graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Chang graduated from Jefferson Medical College of Thomas Jefferson University in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark 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. Mark 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. Mark Chang's NPI number?
Dr. Mark Chang's NPI number is 1356564934. It was assigned on April 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Chang?
Dr. Mark Chang is a urologist in West Nyack, New York. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Mark Chang practice?
Dr. Chang practices at 2 Medical Park Dr, West Nyack, NY 10994. Dr. Chang's primary practice is Integrated Medical Professionals in West Nyack, New York. Dmand AI also links Dr. Chang to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Mark Chang's office phone number?
The practice phone on file for Dr. Chang is (516) 931-0041.
What is Dr. Mark Chang's medical license number?
Dr. Chang holds New York license 240243-1.
Which hospitals is Dr. Mark Chang affiliated with?
Dr. Chang is affiliated with Montefiore Nyack Hospital. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Mark Chang part of?
Dr. Chang is linked to Integrated Medical Professionals. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. Mark Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 5,208 services in 2024, and Dr. Chang accepts Medicare assignment.
Does Dr. Mark Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
What is Dr. Mark Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Mark Chang see?
CMS counts 918 Medicare patients who saw Dr. Chang in 2024, with an average age of 76.
What services does Dr. Mark Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were medicare service (G2211), surgery: urinary system (51798) and office visit, established patient (99214).
Where did Dr. Mark Chang go to medical school?
Dr. Chang graduated from Jefferson Medical College of Thomas Jefferson University in 1999.
What drugs does Dr. Mark Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Oxybutynin Chloride ER.
Has Dr. Mark Chang received payments from drug or device companies?
CMS Open Payments shows $6,232 in general payments to Dr. Chang from 39 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Mark Chang been practicing?
Dr. Chang graduated from medical school in 1999, 27 years ago.
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