J. Gray O'Brien, MSPT
- Medicare patients, 2024
- 126
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 2121 Wilshire Blvd, Santa Monica, CA 90403
- Practice phone
- Call (310) 264-7300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
2121 Surgery Center Limited Partnership
Santa Monica, California
Find J. 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.
J. Gray O'Brien is a physical therapist in Santa Monica, California
J. O'Brien practices at 2121 Surgery Center Limited Partnership in Santa Monica, California.
J. O'Brien's NPI, 1336246750, was assigned on September 20, 2006. J. O'Brien holds California license PT25009.
- NPI
- 1336246750NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113084237
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 264-7300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
J. Gray O'Brien practices at 2121 Surgery Center Limited Partnership in Santa Monica, California
J. O'Brien's primary practice is 2121 Surgery Center Limited Partnership, at 2121 Wilshire Blvd, Santa Monica, CA 90403 in Los Angeles County. The practice phone is (310) 264-7300.
- 2121 Surgery Center Limited Partnership2121 Wilshire Blvd, Santa Monica, CA 90403 · Los Angeles CountyPhone(310) 264-7300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
J. Gray O'Brien is affiliated with 2 sites of care and 1 medical group
J. O'Brien's primary practice is 2121 Surgery Center Limited Partnership in Santa Monica, California. The medical group on file is University Foot & Ankle Institute. Dmand AI also links J. O'Brien to 1 more group practice or clinic, 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 J. Gray O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where J. O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| 2121 Surgery Center Limited Partnership | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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J. Gray O'Brien is one of 11,178 physical therapists in California
Physical therapist is J. O'Brien's primary specialty in the NPI Registry, under taxonomy code 225100000X. J. O'Brien is licensed in California.
Specialties and state licenses
- Physical therapist, CaliforniaPrimary
Physical therapists near J. 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
J. Gray O'Brien treated 126 Medicare patients in 2024, average age 73
CMS counts 126 Medicare patients who saw J. O'Brien in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high cholesterol, and 58% have arthritis. 9% are also on Medicaid. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts J. O'Brien's median patient age at 69, with 77% women.
J. O'Brien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
J. O'Brien's Medicare patients by sex, 2024
- Women8164%
- Men4536%
Chronic conditions among J. O'Brien's Medicare patients, 2024
- High cholesterol75%
- Arthritis58%
- High blood pressure50%
- Ischemic heart disease29%
- Anxiety24%
- Osteoporosis22%
- Mood disorders21%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
J. 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 69
Patient panel by sex, all payers
- Women77%
- Men21%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How J. Gray O'Brien takes part in Medicare
J. 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 J. Gray 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 DataMedicare Physician & Other Practitioners - 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) |
| 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 J. Gray 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 J. Gray O'Brien's NPI number?
J. Gray O'Brien's NPI number is 1336246750. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What does J. Gray O'Brien specialize in?
J. Gray O'Brien is a physical therapist in Santa Monica, California. The primary specialty in the NPI Registry is Physical Therapist (taxonomy code 225100000X).
Where does J. Gray O'Brien practice?
J. O'Brien practices at 2121 Wilshire Blvd, Santa Monica, CA 90403. J. O'Brien's primary practice is 2121 Surgery Center Limited Partnership in Santa Monica, California. Dmand AI also links J. O'Brien to 1 group practice or clinic.
What is J. Gray O'Brien's office phone number?
The practice phone on file for J. O'Brien is (310) 264-7300.
What is J. Gray O'Brien's medical license number?
J. O'Brien holds California license PT25009.
What medical group is J. Gray O'Brien part of?
J. O'Brien is linked to University Foot & Ankle Institute.
Does J. Gray O'Brien accept Medicare?
Yes. CMS lists J. O'Brien as accepting Medicare assignment.
How many Medicare patients does J. Gray O'Brien see?
CMS counts 126 Medicare patients who saw J. O'Brien in 2024, with an average age of 73.
How long has J. Gray O'Brien been practicing?
J. O'Brien graduated from medical school in 1995, 31 years ago.
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