Dr. Stephen J. Maddox Jr., MD
- Part D claims, 2020
- 55
- Hospital affiliations
- 1
- Industry payments
- $1,243
- Medical groups
- 2
- State licenses
- 2
- Practice address
- 160 Robbins St, Waterbury, CT 06708
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Naugatuck Valley Surgical Center - HOPD
Acute Care Hospital outpatient department · Waterbury, Connecticut
Find Dr. Maddox'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. Stephen J. Maddox Jr. is a pediatrician in Waterbury, Connecticut
Dr. Maddox practices at Naugatuck Valley Surgical Center - HOPD in Waterbury, Connecticut.
Dr. Maddox's NPI, 1083680342, was assigned on February 27, 2006. Dr. Maddox holds Connecticut license 045563.
- NPI
- 1083680342NPI Registry (opens in a new tab)
- NPI enumeration date
- February 27, 2006
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Stephen J. Maddox Jr. practices at Naugatuck Valley Surgical Center - HOPD in Waterbury, Connecticut
Dr. Maddox's primary practice is Naugatuck Valley Surgical Center - HOPD, at 160 Robbins St, Waterbury, CT 06708.
- Naugatuck Valley Surgical Center - HOPD160 Robbins St, Waterbury, CT 06708
Source: Dmand AI Affiliation Data
Dr. Stephen J. Maddox Jr. is affiliated with 3 sites of care and 2 medical groups
Dr. Maddox's primary practice is Naugatuck Valley Surgical Center - HOPD in Waterbury, Connecticut. Dr. Maddox is also affiliated with Saint Mary's Hospital. The medical group on file is Connecticut Children's. Dmand AI also links Dr. Maddox to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen J. Maddox Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maddox practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Naugatuck Valley Surgical Center - HOPD | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen J. Maddox Jr. is one of 788 pediatricians in Connecticut
Pediatrics is Dr. Maddox's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dmand AI has Dr. Maddox's licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Pediatrics, ConnecticutPrimary
- New York license
Pediatricians near Dr. Maddox
Counts of pediatricians 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. Stephen J. Maddox Jr.'s patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Maddox's median patient age at 11, with 41% women.
Dr. Maddox's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women41%
- Men58%
Source: Dmand AI Patient Panel Data
Dr. Stephen J. Maddox Jr. wrote 55 Medicare Part D claims in 2020
In 2020, Dr. Maddox wrote 55 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $2,769 in total drug cost. In 2019, CMS named 72 claims across 5 drugs.
Dr. Maddox's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 722020: 5524%
Drugs named by CMS: 3 in 2020, 5 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Stephen J. Maddox Jr. received $1,243 in industry payments from 2016 to 2025
CMS Open Payments shows 69 general payments to Dr. Maddox from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Shire North American Group Inc paid the most, $231.
General payments to Dr. Maddox by program year, 2016 to 2025
Companies that paid Dr. Maddox 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. Stephen J. Maddox Jr.'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Stephen J. Maddox Jr.
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. Stephen J. Maddox Jr.'s NPI number?
Dr. Stephen J. Maddox Jr.'s NPI number is 1083680342. It was assigned on February 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen J. Maddox Jr.?
Dr. Stephen J. Maddox Jr. is a pediatrician in Waterbury, Connecticut. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Stephen J. Maddox Jr. practice?
Dr. Maddox practices at 160 Robbins St, Waterbury, CT 06708. Dr. Maddox's primary practice is Naugatuck Valley Surgical Center - HOPD in Waterbury, Connecticut. Dmand AI also links Dr. Maddox to 1 group practice or clinic and 1 medical group.
What is Dr. Stephen J. Maddox Jr.'s medical license number?
Dr. Maddox holds Connecticut license 045563, one of the licenses on file in 2 states.
Which states has Dr. Stephen J. Maddox Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Maddox in Connecticut and New York.
Which hospitals is Dr. Stephen J. Maddox Jr. affiliated with?
Dr. Maddox is affiliated with Saint Mary's Hospital.
What medical group is Dr. Stephen J. Maddox Jr. part of?
Dr. Maddox is linked to Connecticut Children's. Dmand AI links Dr. Maddox to 1 more medical group.
What drugs does Dr. Stephen J. Maddox Jr. prescribe most?
In 2020 Medicare Part D data, Dr. Maddox's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Metronidazole.
Has Dr. Stephen J. Maddox Jr. received payments from drug or device companies?
CMS Open Payments shows $1,243 in general payments to Dr. Maddox from 24 companies from 2016 to 2025. The largest total came from Shire North American Group Inc.
How long has Dr. Stephen J. Maddox Jr. been practicing?
Dr. Maddox's NPI was assigned in 2006.
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