Dr. David J. Maddock, MD
- Medicare services, 2024
- 2,872
- Medicare patients, 2024
- 760
- Part D claims, 2024
- 598
- Hospital affiliations
- 2
- Industry payments
- $6,623
- Practice address
- 289 Pleasant St, Fall River, MA 02721
- Practice phone
- Call (508) 676-3292
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prima Care
Fall River, Massachusetts
Find Dr. Maddock's professional email, personal email and mobile number
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Dr. David J. Maddock is a gastroenterologist in Fall River, Massachusetts
Dr. Maddock practices at Prima Care in Fall River, Massachusetts.
Dr. Maddock's NPI, 1376540443, was assigned on July 5, 2005. Dr. Maddock holds Massachusetts license 73460.
- NPI
- 1376540443NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456390988
- NPI enumeration date
- July 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 676-3292
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David J. Maddock practices at Prima Care in Fall River, Massachusetts
Dr. Maddock's primary practice is Prima Care, at 289 Pleasant St, Fall River, MA 02721 in Bristol County. The practice phone is (508) 676-3292.
- Prima Care289 Pleasant St, Fall River, MA 02721 · Bristol CountyPhone(508) 676-3292
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David J. Maddock is affiliated with 4 sites of care and 1 medical group
Dr. Maddock's primary practice is Prima Care in Fall River, Massachusetts. Dr. Maddock is also affiliated with Charlton Memorial Hospital. The medical group on file is Prima Care. Dmand AI also links Dr. Maddock 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. David J. Maddock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maddock practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prima Care | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David J. Maddock is one of 597 gastroenterologists in Massachusetts
Gastroenterology is Dr. Maddock's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Maddock is licensed in Massachusetts.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
Gastroenterologists near Dr. Maddock
Counts of gastroenterologists 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 J. Maddock billed Medicare for 2,872 services in 2024
CMS data shows 2,872 Medicare services from Dr. Maddock across 31 procedure codes in 2024, for 760 Medicare patients. Medicare paid $130,330 for them.
Dr. Maddock's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,6892024: 1,72636%
- Surgery
- 2023: 1,0982024: 80227%
- Office and hospital visits
- 2023: 2572024: 19823%
- Other services
- 2023: 1782024: 13226%
- Tests and treatments
- 2023: 312024: 1455%
Where Dr. Maddock's Medicare services took place, 2024
- In an office2,70494%
- In a facility1686%
Dr. Maddock compared with the Massachusetts median for gastroenterologists, 2024
- Dr. Maddock
- Massachusetts median
- Medicare services
- 2,872vs 5195.5 times
- Medicare patients
- 760vs 3432.2 times
- Part D claims
- 438vs 30046% above
Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Maddock'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. David J. Maddock treated 760 Medicare patients in 2024, average age 70
CMS counts 760 Medicare patients who saw Dr. Maddock in 2024. The largest group is 65 to 74, with 319 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maddock's median patient age at 60, with 55% women.
Dr. Maddock's Medicare patients by age, 2024
Dr. Maddock's Medicare patients by sex, 2024
- Women42556%
- Men33544%
Chronic conditions among Dr. Maddock's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Anxiety47%
- Diabetes39%
- Mood disorders39%
- Depression34%
- Chronic kidney disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maddock's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David J. Maddock wrote 598 Medicare Part D claims in 2024
In 2024, Dr. Maddock wrote 598 Medicare Part D claims for 158 patients. 78% of them were for generic drugs. CMS names the drug for 438 of them, across 10 drugs with 11 or more claims each, at $70,753 in total drug cost. In 2023, CMS named 490 claims across 12 drugs.
Dr. Maddock's Part D claims by kind of drug, 2024
- Generic464 claims78%
- Brand-name134 claims22%
Dr. Maddock'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. Maddock's Part D claims, 2024
- Antibiotics5%29 of 598 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: 4902024: 43811%
Drugs named by CMS: 10 in 2024, 12 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 J. Maddock ranks in the 94th percentile for colonoscopy in Medicare
Dr. Maddock accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 206 procedures of colonoscopy by Dr. Maddock, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Maddock ranks in Medicare procedure volume
- Colonoscopy
- 94th percentile206 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 86th percentile161 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 J. Maddock received $6,623 in industry payments from 2016 to 2025
CMS Open Payments shows 382 general payments to Dr. Maddock from 34 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,625.
General payments to Dr. Maddock by program year, 2016 to 2025
General payments to Dr. Maddock by kind, 2016 to 2025
- Food and beverage$6,615100%
- Education$70%
Companies that paid Dr. Maddock the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David J. Maddock'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) |
| 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 J. Maddock
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 J. Maddock's NPI number?
Dr. David J. Maddock's NPI number is 1376540443. It was assigned on July 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David J. Maddock?
Dr. David J. Maddock is a gastroenterologist in Fall River, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. David J. Maddock practice?
Dr. Maddock practices at 289 Pleasant St, Fall River, MA 02721. Dr. Maddock's primary practice is Prima Care in Fall River, Massachusetts. Dmand AI also links Dr. Maddock to 1 hospital and 1 group practice or clinic.
What is Dr. David J. Maddock's office phone number?
The practice phone on file for Dr. Maddock is (508) 676-3292.
What is Dr. David J. Maddock's medical license number?
Dr. Maddock holds Massachusetts license 73460.
Which hospitals is Dr. David J. Maddock affiliated with?
Dr. Maddock is affiliated with Charlton Memorial Hospital. Dmand AI links Dr. Maddock to 1 more hospital.
What medical group is Dr. David J. Maddock part of?
Dr. Maddock is linked to Prima Care.
Does Dr. David J. Maddock accept Medicare?
Yes. CMS data shows Dr. Maddock billed Medicare for 2,872 services in 2024, and Dr. Maddock accepts Medicare assignment.
How many Medicare patients does Dr. David J. Maddock see?
CMS counts 760 Medicare patients who saw Dr. Maddock in 2024, with an average age of 70.
What services does Dr. David J. Maddock bill to Medicare?
In 2024, Dr. Maddock's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (80053) and lab and pathology test (85025).
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What drugs does Dr. David J. Maddock prescribe most?
In 2024 Medicare Part D data, Dr. Maddock's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Linzess.
Has Dr. David J. Maddock received payments from drug or device companies?
CMS Open Payments shows $6,623 in general payments to Dr. Maddock from 34 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. David J. Maddock been practicing?
Dr. Maddock graduated from medical school in 1984, 42 years ago.
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