Dr. Paul S. Chang, DO
- Medicare services, 2024
- 665
- Medicare patients, 2024
- 234
- Part D claims, 2024
- 122
- Hospital affiliations
- 2
- Industry payments
- $6,370
- Practice address
- 21 Highland Ave, Newburyport, MA 01950
- Practice phone
- Call (978) 462-7555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Seacoast Orthopedic Assoc Inc
Newburyport, Massachusetts
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. Paul S. Chang is an orthopedic surgeon in Newburyport, Massachusetts
Dr. Chang practices at Seacoast Orthopedic Assoc Inc in Newburyport, Massachusetts.
Dr. Chang's NPI, 1285639740, was assigned on June 20, 2005. Dr. Chang graduated from Midwestern University, Chicago College of Osteopathic Med in 1991. Dr. Chang holds Massachusetts license 243728.
- NPI
- 1285639740NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012064553
- NPI enumeration date
- June 20, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 462-7555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Paul S. Chang practices at Seacoast Orthopedic Assoc Inc in Newburyport, Massachusetts
Dr. Chang's primary practice is Seacoast Orthopedic Assoc Inc, at 21 Highland Ave, Newburyport, MA 01950 in Essex County. The practice phone is (978) 462-7555.
- Seacoast Orthopedic Assoc Inc21 Highland Ave, Newburyport, MA 01950 · Essex CountyPhone(978) 462-7555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Paul S. Chang is affiliated with 4 sites of care and 1 medical group
Dr. Chang's primary practice is Seacoast Orthopedic Assoc Inc in Newburyport, Massachusetts. Dr. Chang is also affiliated with Anna Jaques Hospital. The medical group on file is Seacoast Orthopedics & Sports Medicine. Dmand AI also links Dr. Chang to 1 more hospital 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. Paul S. 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 |
|---|---|
| Seacoast Orthopedic Assoc Inc | Available with a free account |
| +3 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Paul S. Chang is one of 593 orthopedic surgeons in Massachusetts
Orthopaedic surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chang is licensed in Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, MassachusettsPrimary
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. Paul S. Chang billed Medicare for 665 services in 2024
CMS data shows 665 Medicare services from Dr. Chang across 15 procedure codes in 2024, for 234 Medicare patients. Medicare paid $39,264 for them.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7312024: 43341%
- Imaging
- 2023: 2732024: 16041%
- Surgery
- 2023: 642024: 4727%
- Drugs given in the office
- 2023: 472024: 2547%
Where Dr. Chang's Medicare services took place, 2024
- In an office64597%
- In a facility203%
Dr. Chang compared with the Massachusetts median for orthopedic surgeons, 2024
- Dr. Chang
- Massachusetts median
- Medicare services
- 665vs 672Close to median
- Medicare patients
- 234vs 30223% below
- Part D claims
- 102vs 502.0 times
Medians across 543 orthopedic surgeons in Massachusetts 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 orthopedic surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Paul S. Chang treated 234 Medicare patients in 2024, average age 76
CMS counts 234 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 92 patients. 75% of them have high cholesterol, and 71% have arthritis. 13% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 65, with 60% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women14261%
- Men9239%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol75%
- Arthritis71%
- High blood pressure70%
- Anxiety32%
- Ischemic heart disease32%
- Mood disorders32%
- Depression29%
- Atrial fibrillation26%
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 65
Patient panel by sex, all payers
- Women60%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Paul S. Chang wrote 122 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 122 Medicare Part D claims for 66 patients. 100% of them were for generic drugs. CMS names the drug for 102 of them, across 6 drugs with 11 or more claims each, at $618 in total drug cost. In 2023, CMS named 184 claims across 8 drugs.
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
- Opioids17%21 of 122 claims
- Antibiotics23%28 of 122 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: 1842024: 10245%
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
How Dr. Paul S. Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Paul S. Chang received $6,370 in industry payments from 2016 to 2025
CMS Open Payments shows 65 general payments to Dr. Chang from 21 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 39% of the total. Stryker Corporation paid the most, $3,616.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
- Travel and lodging$2,50439%
- Food and beverage$2,14134%
- Education$1,72527%
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. Paul S. Chang graduated from Midwestern University, Chicago College of Osteopathic Med
Dr. Chang graduated from Midwestern University, Chicago College of Osteopathic Med in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Paul S. 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)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. Paul S. 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. Paul S. Chang's NPI number?
Dr. Paul S. Chang's NPI number is 1285639740. It was assigned on June 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Paul S. Chang?
Dr. Paul S. Chang is an orthopedic surgeon in Newburyport, Massachusetts. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Paul S. Chang practice?
Dr. Chang practices at 21 Highland Ave, Newburyport, MA 01950. Dr. Chang's primary practice is Seacoast Orthopedic Assoc Inc in Newburyport, Massachusetts. Dmand AI also links Dr. Chang to 1 hospital and 1 group practice or clinic.
What is Dr. Paul S. Chang's office phone number?
The practice phone on file for Dr. Chang is (978) 462-7555.
What is Dr. Paul S. Chang's medical license number?
Dr. Chang holds Massachusetts license 243728.
Which hospitals is Dr. Paul S. Chang affiliated with?
Dr. Chang is affiliated with Anna Jaques Hospital. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Paul S. Chang part of?
Dr. Chang is linked to Seacoast Orthopedics & Sports Medicine.
Does Dr. Paul S. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 665 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Paul S. Chang see?
CMS counts 234 Medicare patients who saw Dr. Chang in 2024, with an average age of 76.
What services does Dr. Paul S. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, new patient (99203).
Show 4 more questionsShow fewer questions
Where did Dr. Paul S. Chang go to medical school?
Dr. Chang graduated from Midwestern University, Chicago College of Osteopathic Med in 1991.
What drugs does Dr. Paul S. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Amoxicillin, Meloxicam and Tramadol HCl.
Has Dr. Paul S. Chang received payments from drug or device companies?
CMS Open Payments shows $6,370 in general payments to Dr. Chang from 21 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Paul S. Chang been practicing?
Dr. Chang graduated from medical school in 1991, 35 years ago.
Selling to orthopaedic surgery practices?
See orthopedic surgeons in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card