J Am Acad Dermatol
Dr. David Shaun Aghassi, MD
- Medicare services, 2024
- 3,565
- Medicare patients, 2024
- 1,074
- Part D claims, 2024
- 711
- Publications
- 7
- Hospital affiliations
- 1
- Practice address
- 65 Walnut St, Wellesley Hills, MA 02481
- Practice phone
- Call (781) 235-9089
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
William Mitchell Jr, LLC
Wellesley Hills, Massachusetts
Find Dr. Aghassi'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. David Shaun Aghassi is a dermatologist in Wellesley Hills, Massachusetts
Dr. Aghassi practices at William Mitchell Jr, LLC in Wellesley Hills, Massachusetts.
Dr. Aghassi's NPI, 1285698936, was assigned on April 12, 2006. Dr. Aghassi graduated from Yale School of Medicine in 1994. Dr. Aghassi holds Massachusetts license 157066.
- NPI
- 1285698936NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426076936
- NPI enumeration date
- April 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 235-9089
- 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. David Shaun Aghassi practices at William Mitchell Jr, LLC in Wellesley Hills, Massachusetts
Dr. Aghassi's primary practice is William Mitchell Jr, LLC, at 65 Walnut St, Wellesley Hills, MA 02481 in Norfolk County. The practice phone is (781) 235-9089.
- William Mitchell Jr, LLC65 Walnut St, Wellesley Hills, MA 02481 · Norfolk CountyPhone(781) 235-9089
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Shaun Aghassi is affiliated with 3 sites of care and 1 medical group
Dr. Aghassi's primary practice is William Mitchell Jr, LLC in Wellesley Hills, Massachusetts. Dr. Aghassi is also affiliated with Newton-Wellesley Hospital. The medical group on file is Newton Wellesley Dermatology Associates. Dmand AI also links Dr. Aghassi to 1 more group practice or clinic, 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. David Shaun Aghassi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Aghassi practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William Mitchell Jr, LLC | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Shaun Aghassi is one of 562 dermatologists in Massachusetts
Dermatology is Dr. Aghassi's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Aghassi is board certified in dermatology by the American Board of Dermatology. Dr. Aghassi is licensed in Massachusetts.
Specialties and state licenses
- Dermatology, MassachusettsPrimary
Clinical focus
Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, cold sores or genital herpes, contact dermatitis, itchy rashes and minor injury to a limb among the conditions Dr. Aghassi treats.
Dermatologists near Dr. Aghassi
Counts of dermatologists 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. David Shaun Aghassi billed Medicare for 3,565 services in 2024
CMS data shows 3,565 Medicare services from Dr. Aghassi across 18 procedure codes in 2024, for 1,074 Medicare patients. Medicare paid $189,639 for them. Every service was in an office.
Dr. Aghassi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2,1462024: 2,2213%
- Office and hospital visits
- 2023: 1,2102024: 1,34411%
Dr. Aghassi compared with the Massachusetts median for dermatologists, 2024
- Dr. Aghassi
- Massachusetts median
- Medicare services
- 3,565vs 1,6102.2 times
- Medicare patients
- 1,074vs 4892.2 times
- Part D claims
- 592vs 34771% above
Medians across 559 dermatologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Aghassi'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. Aghassi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Aghassi and other dermatologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Shaun Aghassi treated 1,074 Medicare patients in 2024, average age 76
CMS counts 1,074 Medicare patients who saw Dr. Aghassi in 2024. The largest group is 75 to 84, with 466 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 2% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Aghassi's median patient age at 62, with 50% women.
Dr. Aghassi's Medicare patients by age, 2024
Dr. Aghassi's Medicare patients by sex, 2024
- Women43140%
- Men64360%
Chronic conditions among Dr. Aghassi's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis42%
- Ischemic heart disease24%
- Cancer21%
- Anxiety20%
- Atrial fibrillation18%
- Chronic kidney disease18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Aghassi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Shaun Aghassi wrote 711 Medicare Part D claims in 2024
In 2024, Dr. Aghassi wrote 711 Medicare Part D claims for 388 patients. 95% of them were for generic drugs. CMS names the drug for 592 of them, across 13 drugs with 11 or more claims each, at $14,833 in total drug cost. In 2023, CMS named 583 claims across 15 drugs.
Dr. Aghassi's Part D claims by kind of drug, 2024
- Generic676 claims95%
- Brand-name35 claims5%
Dr. Aghassi'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. Aghassi's Part D claims, 2024
- Antibiotics5%38 of 711 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: 5832024: 5922%
Drugs named by CMS: 13 in 2024, 15 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. David Shaun Aghassi ranks in the 94th percentile for removal of skin lesions in Medicare
Dr. Aghassi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 1,156 procedures of removal of skin lesions by Dr. Aghassi, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Aghassi ranks in Medicare procedure volume
- Removal of skin lesions
- 94th percentile1,156 procedures
- Skin biopsy
- 93rd percentile364 procedures
- Melanoma (skin cancer) excision
- 87th percentile51 procedures
- Removal or shaving of skin growth
- 78th percentile44 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David Shaun Aghassi has 7 publications on record
Dmand AI links 7 papers to Dr. Aghassi. The most frequent topics are Laser Therapy, Microscopy, Confocal and Skin. Dr. Aghassi has published most often in J Am Acad Dermatol.
Topics Dr. Aghassi writes about most
- Laser Therapy
- Microscopy, Confocal
- Skin
- Skin Neoplasms
Recent publications by Dr. Aghassi
J Invest Dermatol
Arch Dermatol
See who Dr. Aghassi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Aghassi works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Shaun Aghassi received $178 in industry payments from 2016 to 2023
CMS Open Payments shows 4 general payments to Dr. Aghassi from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Celgene Corporation paid the most, $105.
General payments to Dr. Aghassi by program year, 2016 to 2023
Companies that paid Dr. Aghassi the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Shaun Aghassi has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Aghassi, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Aghassi
- 2012
- CMS Stage 1 2012
- Undated
- AAD Fellow
- ASDS Fellow
Source: Dmand AI Professional Profile Data
Dr. David Shaun Aghassi graduated from Yale School of Medicine
Dr. Aghassi graduated from Yale School of Medicine in 1994. Dr. Aghassi is a member of AAD and ASDS.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. David Shaun Aghassi accepts plans from 9 insurance carriers
Dr. Aghassi is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Elevance
- +1 more carriersWith a free account
Plan types Dr. Aghassi accepts, by number of carriers
- Medicare7
- PPO7
- HMO5
- POS3
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Shaun Aghassi'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. David Shaun Aghassi
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. David Shaun Aghassi's NPI number?
Dr. David Shaun Aghassi's NPI number is 1285698936. It was assigned on April 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Shaun Aghassi?
Dr. David Shaun Aghassi is a dermatologist in Wellesley Hills, Massachusetts. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. David Shaun Aghassi practice?
Dr. Aghassi practices at 65 Walnut St, Wellesley Hills, MA 02481. Dr. Aghassi's primary practice is William Mitchell Jr, LLC in Wellesley Hills, Massachusetts. Dmand AI also links Dr. Aghassi to 1 group practice or clinic.
What is Dr. David Shaun Aghassi's office phone number?
The practice phone on file for Dr. Aghassi is (781) 235-9089.
What is Dr. David Shaun Aghassi's medical license number?
Dr. Aghassi holds Massachusetts license 157066.
Which hospitals is Dr. David Shaun Aghassi affiliated with?
Dr. Aghassi is affiliated with Newton-Wellesley Hospital.
What medical group is Dr. David Shaun Aghassi part of?
Dr. Aghassi is linked to Newton Wellesley Dermatology Associates.
Does Dr. David Shaun Aghassi accept Medicare?
Yes. CMS data shows Dr. Aghassi billed Medicare for 3,565 services in 2024, and Dr. Aghassi accepts Medicare assignment.
How many Medicare patients does Dr. David Shaun Aghassi see?
CMS counts 1,074 Medicare patients who saw Dr. Aghassi in 2024, with an average age of 76.
Is Dr. David Shaun Aghassi board certified?
Yes. Dr. Aghassi is board certified in dermatology by the American Board of Dermatology.
Show 7 more questionsShow fewer questions
What services does Dr. David Shaun Aghassi bill to Medicare?
In 2024, Dr. Aghassi's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
Where did Dr. David Shaun Aghassi go to medical school?
Dr. Aghassi graduated from Yale School of Medicine in 1994.
What drugs does Dr. David Shaun Aghassi prescribe most?
In 2024 Medicare Part D data, Dr. Aghassi's most prescribed drugs by claims were Betamethasone Diprop Augmented, Ketoconazole and Fluorouracil.
Has Dr. David Shaun Aghassi received payments from drug or device companies?
CMS Open Payments shows $178 in general payments to Dr. Aghassi from 4 companies from 2016 to 2023. The largest total came from Celgene Corporation.
How long has Dr. David Shaun Aghassi been practicing?
Dr. Aghassi graduated from medical school in 1994, 32 years ago.
Does Dr. David Shaun Aghassi do research?
Dmand AI links 7 publications to Dr. Aghassi.
What insurance does Dr. David Shaun Aghassi accept?
Dr. Aghassi is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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