Dr. William D. Dillon, MD
- Medicare services, 2024
- 1,017
- Medicare patients, 2024
- 200
- Part D claims, 2024
- 2,193
- Hospital affiliations
- 1
- Industry payments
- $110
- Practice address
- 88 E Newton St, Boston, MA 02118
- Practice phone
- Call (508) 384-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Norfolk County Medical Associates,Inc.
Boston, Massachusetts
Find Dr. Dillon's professional email, personal email and mobile number
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Dr. William D. Dillon is a cardiologist in Boston, Massachusetts
Dr. Dillon practices at Norfolk County Medical Associates,Inc. in Boston, Massachusetts.
Dr. Dillon's NPI, 1689656373, was assigned on November 17, 2005. Dr. Dillon graduated from University of Massachusetts Medical School in 1981. Dr. Dillon holds Massachusetts license 50050.
- NPI
- 1689656373NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658327044
- NPI enumeration date
- November 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 384-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William D. Dillon practices at Norfolk County Medical Associates,Inc. in Boston, Massachusetts
Dr. Dillon's primary practice is Norfolk County Medical Associates,Inc., at 88 E Newton St, Boston, MA 02118 in Suffolk County. The practice phone is (508) 384-5000.
- Norfolk County Medical Associates,Inc.88 E Newton St, Boston, MA 02118 · Suffolk CountyPhone(508) 384-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William D. Dillon is affiliated with 3 sites of care
Dr. Dillon's primary practice is Norfolk County Medical Associates,Inc. in Boston, Massachusetts. Dr. Dillon is also affiliated with Brigham and Women's Hospital. Dmand AI also links Dr. Dillon to 1 more physician office, 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. William D. Dillon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dillon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Norfolk County Medical Associates,Inc. | 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. William D. Dillon is one of 840 cardiologists in Massachusetts
Cardiovascular disease is Dr. Dillon's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Dillon is licensed in Massachusetts.
Specialties and state licenses
- Cardiovascular disease, MassachusettsPrimary
Cardiologists near Dr. Dillon
Counts of cardiologists 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. William D. Dillon billed Medicare for 1,017 services in 2024
CMS data shows 1,017 Medicare services from Dr. Dillon across 15 procedure codes in 2024, for 200 Medicare patients. Medicare paid $77,464 for them. Every service was in an office.
Dr. Dillon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 6672024: 56815%
- Office and hospital visits
- 2023: 4452024: 4167%
- Other services
- 2023: 362024: 338%
Dr. Dillon compared with the Massachusetts median for cardiologists, 2024
- Dr. Dillon
- Massachusetts median
- Medicare services
- 1,017vs 1,61237% below
- Medicare patients
- 200vs 95679% below
- Part D claims
- 1,913vs 8462.3 times
Medians across 817 cardiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Dillon'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William D. Dillon treated 200 Medicare patients in 2024, average age 78
CMS counts 200 Medicare patients who saw Dr. Dillon in 2024. The largest group is 75 to 84, with 85 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% 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. Dillon's median patient age at 72, with 33% women.
Dr. Dillon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Dillon's Medicare patients by sex, 2024
- Women8945%
- Men11156%
Chronic conditions among Dr. Dillon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease50%
- Arthritis42%
- Atrial fibrillation38%
- Diabetes35%
- Chronic kidney disease31%
- Anxiety30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dillon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women33%
- Men64%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William D. Dillon wrote 2,193 Medicare Part D claims in 2024
In 2024, Dr. Dillon wrote 2,193 Medicare Part D claims for 227 patients. 87% of them were for generic drugs. CMS names the drug for 1,913 of them, across 36 drugs with 11 or more claims each, at $245,759 in total drug cost. In 2023, CMS named 1,972 claims across 40 drugs.
Dr. Dillon's Part D claims by kind of drug, 2024
- Generic1,907 claims87%
- Brand-name286 claims13%
Dr. Dillon'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. Dillon's Part D claims, 2024
- Antibiotics1%24 of 2,193 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: 1,9722024: 1,9133%
Drugs named by CMS: 36 in 2024, 40 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. William D. Dillon offers telehealth to Medicare patients
Dr. Dillon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dillon as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. William D. Dillon received $110 in industry payments from 2017 to 2025
CMS Open Payments shows 7 general payments to Dr. Dillon from 4 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $49.
General payments to Dr. Dillon by program year, 2017 to 2025
Companies that paid Dr. Dillon the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William D. Dillon graduated from University of Massachusetts Medical School
Dr. Dillon graduated from University of Massachusetts Medical School in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William D. Dillon'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) |
| 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. William D. Dillon
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. William D. Dillon's NPI number?
Dr. William D. Dillon's NPI number is 1689656373. It was assigned on November 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William D. Dillon?
Dr. William D. Dillon is a cardiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. William D. Dillon practice?
Dr. Dillon practices at 88 E Newton St, Boston, MA 02118. Dr. Dillon's primary practice is Norfolk County Medical Associates,Inc. in Boston, Massachusetts. Dmand AI also links Dr. Dillon to 1 physician office.
What is Dr. William D. Dillon's office phone number?
The practice phone on file for Dr. Dillon is (508) 384-5000.
What is Dr. William D. Dillon's medical license number?
Dr. Dillon holds Massachusetts license 50050.
Which hospitals is Dr. William D. Dillon affiliated with?
Dr. Dillon is affiliated with Brigham and Women's Hospital.
Does Dr. William D. Dillon accept Medicare?
Yes. CMS data shows Dr. Dillon billed Medicare for 1,017 services in 2024, and Dr. Dillon accepts Medicare assignment.
Does Dr. William D. Dillon offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Dillon as offering telehealth services.
How many Medicare patients does Dr. William D. Dillon see?
CMS counts 200 Medicare patients who saw Dr. Dillon in 2024, with an average age of 78.
What services does Dr. William D. Dillon bill to Medicare?
In 2024, Dr. Dillon's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Dr. William D. Dillon go to medical school?
Dr. Dillon graduated from University of Massachusetts Medical School in 1981.
What drugs does Dr. William D. Dillon prescribe most?
In 2024 Medicare Part D data, Dr. Dillon's most prescribed drugs by claims were Metoprolol Succinate, Atorvastatin Calcium and Lisinopril.
Has Dr. William D. Dillon received payments from drug or device companies?
CMS Open Payments shows $110 in general payments to Dr. Dillon from 4 companies from 2017 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. William D. Dillon been practicing?
Dr. Dillon graduated from medical school in 1981, 45 years ago.
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