Dr. William F. Horgan, DO
- Part D claims, 2018
- 11
- Industry payments
- $584
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 101 Cedar Street, Milford, MA 01757
- Practice phone
- Call (508) 634-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Reliant Medical Group - Milford
Clinical Lab - Basic Testing Only · Milford, Massachusetts
Find Dr. Horgan'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. William F. Horgan is a pediatrician in Milford, Massachusetts
Dr. Horgan practices at Reliant Medical Group - Milford in Milford, Massachusetts.
Dr. Horgan's NPI, 1871554758, was assigned on March 30, 2006. Dr. Horgan holds Massachusetts license 72303.
- NPI
- 1871554758NPI Registry (opens in a new tab)
- NPI enumeration date
- March 30, 2006
- NPI status
- Active
- Practice phone
- (508) 634-3100
- 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. William F. Horgan practices at Reliant Medical Group - Milford in Milford, Massachusetts
Dr. Horgan's primary practice is Reliant Medical Group - Milford, at 101 Cedar Street, Milford, MA 01757. The practice phone is (508) 634-3100.
- Reliant Medical Group - Milford101 Cedar Street, Milford, MA 01757Phone(508) 634-3100
Source: Dmand AI Affiliation Data
Dr. William F. Horgan is affiliated with 2 sites of care and 1 medical group
Dr. Horgan's primary practice is Reliant Medical Group - Milford in Milford, Massachusetts. The medical group on file is Reliant Medical Group. Dmand AI also links Dr. Horgan to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William F. Horgan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Horgan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reliant Medical Group - Milford | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William F. Horgan is one of 2,101 pediatricians in Massachusetts
Pediatrics is Dr. Horgan's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Horgan is licensed in Massachusetts.
Specialties and state licenses
- Pediatrics, MassachusettsPrimary
Pediatricians near Dr. Horgan
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. William F. Horgan's patients have a median age of 16
Across all payers, Dmand AI patient panel data puts Dr. Horgan's median patient age at 16, with 33% women.
Dr. Horgan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 16
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. William F. Horgan wrote 11 Medicare Part D claims in 2018
In 2018, Dr. Horgan wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $44 in total drug cost.
Dr. Horgan's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. William F. Horgan received $584 in industry payments from 2016 to 2023
CMS Open Payments shows 3 general payments to Dr. Horgan from 2 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 91% of the total. Seqirus USA Inc paid the most, $534.
General payments to Dr. Horgan by program year, 2016 to 2023
General payments to Dr. Horgan by kind, 2016 to 2023
- Consulting fees$53491%
- Education$509%
Companies that paid Dr. Horgan the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William F. Horgan'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 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. William F. Horgan
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 F. Horgan's NPI number?
Dr. William F. Horgan's NPI number is 1871554758. It was assigned on March 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William F. Horgan?
Dr. William F. Horgan is a pediatrician in Milford, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. William F. Horgan practice?
Dr. Horgan practices at 101 Cedar Street, Milford, MA 01757. Dr. Horgan's primary practice is Reliant Medical Group - Milford in Milford, Massachusetts. Dmand AI also links Dr. Horgan to 1 group practice or clinic.
What is Dr. William F. Horgan's office phone number?
The practice phone on file for Dr. Horgan is (508) 634-3100.
What is Dr. William F. Horgan's medical license number?
Dr. Horgan holds Massachusetts license 72303.
What medical group is Dr. William F. Horgan part of?
Dr. Horgan is linked to Reliant Medical Group.
What drugs does Dr. William F. Horgan prescribe most?
In 2018 Medicare Part D data, Dr. Horgan's most prescribed drugs by claims were Clonidine HCl.
Has Dr. William F. Horgan received payments from drug or device companies?
CMS Open Payments shows $584 in general payments to Dr. Horgan from 2 companies from 2016 to 2023. The largest total came from Seqirus USA Inc.
How long has Dr. William F. Horgan been practicing?
Dr. Horgan's NPI was assigned in 2006.
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