Dr. Douglas James Cassidy, MD
- Medicare services, 2024
- 128
- Medicare patients, 2024
- 119
- Part D claims, 2016
- 36
- MIPS score, 2024
- 79
- Hospital affiliations
- 1
- Practice address
- 1208 2 Island Ct, Mount Pleasant, SC 29466
- Practice phone
- Call (803) 286-4666
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
MUSC Physicians
Mount Pleasant, South Carolina
Find Dr. Cassidy'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. Douglas James Cassidy is a general surgeon in Mount Pleasant, South Carolina
Dr. Cassidy practices at MUSC Physicians in Mount Pleasant, South Carolina.
Dr. Cassidy's NPI, 1245619154, was assigned on May 26, 2015. Dr. Cassidy graduated from Tufts University School of Medicine in 2015. Dr. Cassidy holds Missouri license 2022031556.
- NPI
- 1245619154NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890001069
- NPI enumeration date
- May 26, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (803) 286-4666
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas James Cassidy practices at MUSC Physicians in Mount Pleasant, South Carolina
Dr. Cassidy's primary practice is MUSC Physicians, at 1208 2 Island Ct, Mount Pleasant, SC 29466 in Charleston County. The practice phone is (803) 286-4666.
- MUSC Physicians1208 2 Island Ct, Mount Pleasant, SC 29466 · Charleston CountyPhone(803) 286-4666
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Douglas James Cassidy is affiliated with 4 sites of care and 2 medical groups
Dr. Cassidy's primary practice is MUSC Physicians in Mount Pleasant, South Carolina. Dr. Cassidy is also affiliated with MUSC Health University Medical Center. The medical group on file is MUSC Health. Dmand AI also links Dr. Cassidy to 2 more 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. Douglas James Cassidy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cassidy practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MUSC Physicians | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Douglas James Cassidy is one of 506 general surgeons in South Carolina
Surgery is Dr. Cassidy's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Cassidy is licensed in Missouri.
Specialties and state licenses
- Surgery, MissouriPrimary
General surgeons near Dr. Cassidy
Counts of general 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. Douglas James Cassidy billed Medicare for 128 services in 2024
CMS data shows 128 Medicare services from Dr. Cassidy across 4 procedure codes in 2024, for 119 Medicare patients. Medicare paid $12,587 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Cassidy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 412024: 114178%
- Surgery
- 2023: 02024: 14
Dr. Cassidy compared with the South Carolina median for general surgeons, 2024
- Dr. Cassidy
- South Carolina median
- Medicare services
- 128vs 26552% below
- Medicare patients
- 119vs 17833% below
- Part D claims
- 36vs 5433% below
Medians across 500 general surgeons in South Carolina with Dmand AI profiles that report each measure.
Dr. Cassidy'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. Cassidy?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cassidy and other general surgeons in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas James Cassidy treated 119 Medicare patients in 2024, average age 71
CMS counts 119 Medicare patients who saw Dr. Cassidy in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Cassidy's median patient age at 65, with 51% women.
Dr. Cassidy's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cassidy's Medicare patients by sex, 2024
- Women4941%
- Men7059%
Chronic conditions among Dr. Cassidy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Diabetes36%
- Anxiety32%
- Chronic kidney disease31%
- Ischemic heart disease29%
- Atrial fibrillation25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cassidy'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
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas James Cassidy wrote 36 Medicare Part D claims in 2016
In 2016, Dr. Cassidy wrote 36 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $406 in total drug cost.
Dr. Cassidy's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Douglas James Cassidy scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Cassidy for performance year 2024, reported as part of a group. Dr. Cassidy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cassidy as offering telehealth. CMS counts 20 procedures of hernia repair (minimally invasive) by Dr. Cassidy, more than 88% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Cassidy's MIPS scores, performance year 2024
- 79of 100Final score
- 62.4of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Cassidy ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 88th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Douglas James Cassidy received $6,433 in industry payments from 2022 to 2025
CMS Open Payments shows 29 general payments to Dr. Cassidy from 10 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 32% of the total. Intuitive Surgical, Inc. paid the most, $3,424.
General payments to Dr. Cassidy by program year, 2022 to 2025
General payments to Dr. Cassidy by kind, 2022 to 2025
- Food and beverage$2,04132%
- Speaker and faculty fees$2,00031%
- Consulting fees$1,64226%
- Travel and lodging$75112%
Companies that paid Dr. Cassidy the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas James Cassidy graduated from Tufts University School of Medicine
Dr. Cassidy graduated from Tufts University School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas James Cassidy'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) |
| 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. Douglas James Cassidy
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. Douglas James Cassidy's NPI number?
Dr. Douglas James Cassidy's NPI number is 1245619154. It was assigned on May 26, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas James Cassidy?
Dr. Douglas James Cassidy is a general surgeon in Mount Pleasant, South Carolina. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Douglas James Cassidy practice?
Dr. Cassidy practices at 1208 2 Island Ct, Mount Pleasant, SC 29466. Dr. Cassidy's primary practice is MUSC Physicians in Mount Pleasant, South Carolina. Dmand AI also links Dr. Cassidy to 2 group practices and clinics and 1 medical group.
What is Dr. Douglas James Cassidy's office phone number?
The practice phone on file for Dr. Cassidy is (803) 286-4666.
What is Dr. Douglas James Cassidy's medical license number?
Dr. Cassidy holds Missouri license 2022031556.
Which hospitals is Dr. Douglas James Cassidy affiliated with?
Dr. Cassidy is affiliated with MUSC Health University Medical Center.
What medical group is Dr. Douglas James Cassidy part of?
Dr. Cassidy is linked to MUSC Health. Dmand AI links Dr. Cassidy to 1 more medical group.
Does Dr. Douglas James Cassidy accept Medicare?
Yes. CMS data shows Dr. Cassidy billed Medicare for 128 services in 2024, and Dr. Cassidy accepts Medicare assignment.
Does Dr. Douglas James Cassidy offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Cassidy as offering telehealth services.
What is Dr. Douglas James Cassidy's MIPS score?
Dr. Cassidy's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Douglas James Cassidy see?
CMS counts 119 Medicare patients who saw Dr. Cassidy in 2024, with an average age of 71.
What services does Dr. Douglas James Cassidy bill to Medicare?
In 2024, Dr. Cassidy's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Douglas James Cassidy go to medical school?
Dr. Cassidy graduated from Tufts University School of Medicine in 2015.
What drugs does Dr. Douglas James Cassidy prescribe most?
In 2016 Medicare Part D data, Dr. Cassidy's most prescribed drugs by claims were Oxycodone HCl and Levothyroxine Sodium.
Has Dr. Douglas James Cassidy received payments from drug or device companies?
CMS Open Payments shows $6,433 in general payments to Dr. Cassidy from 10 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Douglas James Cassidy been practicing?
Dr. Cassidy graduated from medical school in 2015, 11 years ago.
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