Dr. Joseph Mark Pruner, MD
- Medicare services, 2024
- 3,333
- Medicare patients, 2024
- 389
- Part D claims, 2024
- 14,816
- Hospital affiliations
- 1
- Industry payments
- $26,996
- Practice address
- 56 Franklin Street, Waterbury, CT 06706
- Practice phone
- Call (203) 709-6020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pruner's professional email, personal email and mobile number
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Dr. Joseph Mark Pruner is an internist in Waterbury, Connecticut
Dr. Pruner practices at Saint Mary's Hospital in Waterbury, Connecticut, part of Trinity Health.
Dr. Pruner's NPI, 1427493048, was assigned on May 9, 2013. Dr. Pruner holds Connecticut license 55238.
- NPI
- 1427493048NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315236585
- NPI enumeration date
- May 9, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 709-6020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Mark Pruner practices at Saint Mary's Hospital in Waterbury, Connecticut
Dr. Pruner's primary practice is Saint Mary's Hospital, at 56 Franklin Street, Waterbury, CT 06706 in New Haven County. The practice phone is (203) 709-6020.
- Saint Mary's Hospital56 Franklin Street, Waterbury, CT 06706 · New Haven CountyPhone(203) 709-6020
Source: Dmand AI Affiliation Data
Dr. Joseph Mark Pruner is affiliated with 8 sites of care and 2 medical groups
Dr. Pruner's primary practice is Saint Mary's Hospital in Waterbury, Connecticut, part of Trinity Health. The medical group on file is Trinity Health Of New England Medical Group. Dmand AI also links Dr. Pruner to 5 more home health agencies, 1 hospital outpatient department, 1 therapy and rehab clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph Mark Pruner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pruner practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Mary's Hospital | Available with a free account |
| +7 more sites and 1 medical group | 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 Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joseph Mark Pruner is one of 2,189 internists in Connecticut
Internal medicine is Dr. Pruner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Pruner is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Pruner
Counts of internists 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. Joseph Mark Pruner billed Medicare for 3,333 services in 2024
CMS data shows 3,333 Medicare services from Dr. Pruner across 22 procedure codes in 2024, for 389 Medicare patients. Medicare paid $200,702 for them. Every service was in an office.
Dr. Pruner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,4112024: 1,3415%
- Other services
- 2023: 8282024: 1,28455%
- Tests and treatments
- 2023: 4402024: 50114%
- Drugs given in the office
- 2023: 672024: 147119%
- Lab and pathology
- 2023: 1122024: 6046%
Dr. Pruner compared with the Connecticut median for internists, 2024
- Dr. Pruner
- Connecticut median
- Medicare services
- 3,333vs 3908.5 times
- Medicare patients
- 389vs 1722.3 times
- Part D claims
- 14,026vs 34340.9 times
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Pruner'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pruner and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph Mark Pruner treated 389 Medicare patients in 2024, average age 74
CMS counts 389 Medicare patients who saw Dr. Pruner in 2024. The largest group is 65 to 74, with 140 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Pruner's median patient age at 66, with 54% women.
Dr. Pruner's Medicare patients by age, 2024
Dr. Pruner's Medicare patients by sex, 2024
- Women21956%
- Men17044%
Chronic conditions among Dr. Pruner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis66%
- Anxiety36%
- Diabetes35%
- Mood disorders29%
- Depression27%
- Osteoporosis24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pruner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Mark Pruner wrote 14,816 Medicare Part D claims in 2024
In 2024, Dr. Pruner wrote 14,816 Medicare Part D claims for 933 patients. 85% of them were for generic drugs. CMS names the drug for 14,026 of them, across 198 drugs with 11 or more claims each, at $1,669,756 in total drug cost. In 2023, CMS named 13,944 claims across 203 drugs.
Dr. Pruner's Part D claims by kind of drug, 2024
- Generic12,645 claims85%
- Brand-name1,981 claims13%
- Other190 claims1%
Dr. Pruner'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. Pruner's Part D claims, 2024
- Opioids1%124 of 14,816 claims
- Antibiotics2%300 of 14,816 claims
- Antipsychotics, patients 65 and over0%69 of 14,816 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: 13,9442024: 14,0261%
Drugs named by CMS: 198 in 2024, 203 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. Joseph Mark Pruner offers telehealth to Medicare patients
Dr. Pruner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Pruner as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joseph Mark Pruner received $26,996 in industry payments from 2016 to 2025
CMS Open Payments shows 1,802 general payments to Dr. Pruner from 52 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Novo Nordisk Inc paid the most, $3,786.
General payments to Dr. Pruner by program year, 2016 to 2025
General payments to Dr. Pruner by kind, 2016 to 2025
- Food and beverage$26,73299%
- Education$2051%
- Gifts$590%
Companies that paid Dr. Pruner 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. Joseph Mark Pruner'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| 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. Joseph Mark Pruner
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. Joseph Mark Pruner's NPI number?
Dr. Joseph Mark Pruner's NPI number is 1427493048. It was assigned on May 9, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Mark Pruner?
Dr. Joseph Mark Pruner is an internist in Waterbury, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Joseph Mark Pruner practice?
Dr. Pruner practices at 56 Franklin Street, Waterbury, CT 06706. Dr. Pruner's primary practice is Saint Mary's Hospital in Waterbury, Connecticut, part of Trinity Health. Dmand AI also links Dr. Pruner to 5 home health agencies, 1 hospital outpatient department, 1 therapy and rehab clinic and 1 medical group.
What is Dr. Joseph Mark Pruner's office phone number?
The practice phone on file for Dr. Pruner is (203) 709-6020.
What is Dr. Joseph Mark Pruner's medical license number?
Dr. Pruner holds Connecticut license 55238.
Which hospitals is Dr. Joseph Mark Pruner affiliated with?
Dr. Pruner practices at Saint Mary's Hospital in Waterbury, Connecticut.
What medical group is Dr. Joseph Mark Pruner part of?
Dr. Pruner is linked to Trinity Health Of New England Medical Group. Dmand AI links Dr. Pruner to 1 more medical group.
Does Dr. Joseph Mark Pruner accept Medicare?
Yes. CMS data shows Dr. Pruner billed Medicare for 3,333 services in 2024, and Dr. Pruner accepts Medicare assignment.
Does Dr. Joseph Mark Pruner offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Pruner as offering telehealth services.
How many Medicare patients does Dr. Joseph Mark Pruner see?
CMS counts 389 Medicare patients who saw Dr. Pruner in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Joseph Mark Pruner bill to Medicare?
In 2024, Dr. Pruner's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and care management and other visits (99497).
What drugs does Dr. Joseph Mark Pruner prescribe most?
In 2024 Medicare Part D data, Dr. Pruner's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Joseph Mark Pruner received payments from drug or device companies?
CMS Open Payments shows $26,996 in general payments to Dr. Pruner from 52 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Joseph Mark Pruner been practicing?
Dr. Pruner graduated from medical school in 2013, 13 years ago.
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