John O'Brien, DDS
- Part D claims, 2024
- 55
- Industry payments
- $96
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2008
- Practice address
- 2158 W 183rd St, Homewood, IL 60430
- Practice phone
- Call (708) 798-4730
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Homewood Oral Surgery
Homewood, Illinois
Find John O'Brien'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.
John O'Brien is a dentist in Homewood, Illinois
John O'Brien practices at Homewood Oral Surgery in Homewood, Illinois.
John O'Brien's NPI, 1568639854, was assigned on May 15, 2008. John O'Brien holds Illinois license 019-020128.
- NPI
- 1568639854NPI Registry (opens in a new tab)
- NPI enumeration date
- May 15, 2008
- NPI status
- Active
- Practice phone
- (708) 798-4730
- 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 Practice Data
John O'Brien practices at Homewood Oral Surgery in Homewood, Illinois
John O'Brien's primary practice is Homewood Oral Surgery, at 2158 W 183rd St, Homewood, IL 60430 in Cook County. The practice phone is (708) 798-4730.
- Homewood Oral Surgery2158 W 183rd St, Homewood, IL 60430 · Cook CountyPhone(708) 798-4730
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John O'Brien is affiliated with 2 sites of care
John O'Brien's primary practice is Homewood Oral Surgery in Homewood, Illinois. Dmand AI also links John O'Brien to 1 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 John O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Homewood Oral Surgery | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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John O'Brien is one of 1,844 dentists in Illinois
Dentist is John O'Brien's primary specialty in the NPI Registry, under taxonomy code 122300000X. John O'Brien is licensed in Illinois.
Specialties and state licenses
- Dentist, IllinoisPrimary
Dentists near John O'Brien
Counts of dentists 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
John O'Brien's patients have a median age of 21
Across all payers, Dmand AI patient panel data puts John O'Brien's median patient age at 21, with 75% women.
John O'Brien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 21
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
John O'Brien wrote 55 Medicare Part D claims in 2024
In 2024, John O'Brien wrote 55 Medicare Part D claims for 41 patients. 96% of them were for generic drugs.
John O'Brien's Part D claims by kind of drug, 2024
- Generic53 claims96%
- Brand-name and other2 claims4%
Drug classes CMS tracks in John O'Brien's Part D claims, 2024
- Antibiotics95%52 of 55 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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John O'Brien received $96 in industry payments in 2025
CMS Open Payments shows 1 general payment to John O'Brien from 1 drug or device company in 2025. Grants make up the largest share, 100% of the total. Premier Dental Products Company paid the most, $96.
Companies that paid John O'Brien the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for John O'Brien'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 John O'Brien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John O'Brien's NPI number?
John O'Brien's NPI number is 1568639854. It was assigned on May 15, 2008, and it is active in the NPI Registry.
What does John O'Brien specialize in?
John O'Brien is a dentist in Homewood, Illinois. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does John O'Brien practice?
John O'Brien practices at 2158 W 183rd St, Homewood, IL 60430. John O'Brien's primary practice is Homewood Oral Surgery in Homewood, Illinois. Dmand AI also links John O'Brien to 1 physician office.
What is John O'Brien's office phone number?
The practice phone on file for John O'Brien is (708) 798-4730.
What is John O'Brien's medical license number?
John O'Brien holds Illinois license 019-020128.
Has John O'Brien received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to John O'Brien from 1 company from 2025 to 2025. The largest total came from Premier Dental Products Company.
How long has John O'Brien been practicing?
John O'Brien's NPI was assigned in 2008.
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