Christopher O'Brien
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 39 Cinema Blvd, Leominster, MA 01453
- Practice phone
- Call (781) 935-2655
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Proex Physical Therapy
Leominster, Massachusetts
Find Christopher 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.
Christopher O'Brien is a physical therapist in Leominster, Massachusetts
Christopher O'Brien practices at Proex Physical Therapy in Leominster, Massachusetts.
Christopher O'Brien's NPI, 1730051012, was assigned on September 18, 2025.
- NPI
- 1730051012NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143706721
- NPI enumeration date
- September 18, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 935-2655
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Christopher O'Brien practices at Proex Physical Therapy in Leominster, Massachusetts
Christopher O'Brien's primary practice is Proex Physical Therapy, at 39 Cinema Blvd, Leominster, MA 01453 in Worcester County. The practice phone is (781) 935-2655.
- Proex Physical Therapy39 Cinema Blvd, Leominster, MA 01453 · Worcester CountyPhone(781) 935-2655
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Christopher O'Brien is affiliated with 3 sites of care and 1 medical group
Christopher O'Brien's primary practice is Proex Physical Therapy in Leominster, Massachusetts. The medical group on file is Professional Physical Therapy. Dmand AI also links Christopher O'Brien to 1 more group practice or clinic and 1 therapy and rehab clinic, each named with a free account. Christopher O'Brien's employer is on file too: a physical therapy & rehab clinic.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Christopher O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Christopher O'Brien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Proex Physical Therapy | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Christopher O'Brien is one of 2,892 physical therapists in Massachusetts
Physical therapist is Christopher O'Brien's primary specialty in the NPI Registry, under taxonomy code 225100000X.
Specialties and state licenses
- Physical therapistPrimary
Physical therapists near Christopher O'Brien
Counts of physical therapists 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
Christopher O'Brien's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Christopher O'Brien's median patient age at 68, with 53% women.
Christopher 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 68
Patient panel by sex, all payers
- Women53%
- Men44%
Source: Dmand AI Patient Panel Data
How Christopher O'Brien takes part in Medicare
Christopher O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Christopher 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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Christopher 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 Christopher O'Brien's NPI number?
Christopher O'Brien's NPI number is 1730051012. It was assigned on September 18, 2025, and it is active in the NPI Registry.
What does Christopher O'Brien specialize in?
Christopher O'Brien is a physical therapist in Leominster, Massachusetts. The primary specialty in the NPI Registry is Physical Therapist (taxonomy code 225100000X).
Where does Christopher O'Brien practice?
Christopher O'Brien practices at 39 Cinema Blvd, Leominster, MA 01453. Christopher O'Brien's primary practice is Proex Physical Therapy in Leominster, Massachusetts. Dmand AI also links Christopher O'Brien to 1 group practice or clinic and 1 therapy and rehab clinic.
What is Christopher O'Brien's office phone number?
The practice phone on file for Christopher O'Brien is (781) 935-2655.
What medical group is Christopher O'Brien part of?
Christopher O'Brien is linked to Professional Physical Therapy.
Does Christopher O'Brien accept Medicare?
Yes. CMS lists Christopher O'Brien as accepting Medicare assignment.
How long has Christopher O'Brien been practicing?
Christopher O'Brien graduated from medical school in 2025, 1 years ago.
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