Patrick Leon Gray, MPAS, PA-C
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 36
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Patrick Gray's professional email, personal email and mobile number
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Patrick Leon Gray is a surgical physician assistant in Fontana, California
Patrick Gray practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Patrick Gray's NPI, 1659459030, was assigned on November 1, 2006. Patrick Gray graduated from University of Nebraska College of Medicine in 1995. Patrick Gray holds Texas license PA05344.
- NPI
- 1659459030NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537225776
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Patrick Leon Gray practices at Fontana Medical Center in Fontana, California
Patrick Gray's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Patrick Leon Gray is affiliated with 1 site of care and 1 medical group
Patrick Gray's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Patrick Leon Gray's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Patrick Gray practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Patrick Leon Gray is one of 883 surgical physician assistants in California
Surgical is Patrick Gray's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Dmand AI has Patrick Gray's licenses on file in 2 states: Texas and California.
Specialties and state licenses
- Surgical physician assistant, TexasPrimary
- California license
Surgical physician assistants near Patrick Gray
Counts of surgical physician assistants 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
Patrick Leon Gray treated 12 Medicare patients in 2024, average age 63
CMS counts 12 Medicare patients who saw Patrick Gray in 2024. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Patrick Gray's median patient age at 30, with 54% women.
Patrick Gray's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 30
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Patrick Leon Gray wrote 36 Medicare Part D claims in 2024
In 2024, Patrick Gray wrote 36 Medicare Part D claims for 29 patients. 100% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $202 in total drug cost.
Patrick Gray's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Patrick Gray's Part D claims, 2024
- Opioids47%17 of 36 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Patrick Leon Gray takes part in Medicare
Patrick Gray 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)
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Patrick Leon Gray graduated from University of Nebraska College of Medicine
Patrick Gray graduated from University of Nebraska College of Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Patrick Leon Gray'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Patrick Leon Gray
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Patrick Leon Gray's NPI number?
Patrick Leon Gray's NPI number is 1659459030. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What does Patrick Leon Gray specialize in?
Patrick Leon Gray is a surgical physician assistant in Fontana, California. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Patrick Leon Gray practice?
Patrick Gray practices at 9961 Sierra Ave, Fontana, CA 92335. Patrick Gray's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
What is Patrick Leon Gray's office phone number?
The practice phone on file for Patrick Gray is (909) 427-5000.
What is Patrick Leon Gray's medical license number?
Patrick Gray holds Texas license PA05344, one of the licenses on file in 2 states.
Which states has Patrick Leon Gray been licensed in?
Dmand AI has state licenses on file for Patrick Gray in Texas and California.
Which hospitals is Patrick Leon Gray affiliated with?
Patrick Gray practices at Fontana Medical Center in Fontana, California.
What medical group is Patrick Leon Gray part of?
Patrick Gray is linked to Southern California Permanente Medical Group.
Does Patrick Leon Gray accept Medicare?
Yes. CMS lists Patrick Gray as accepting Medicare assignment.
How many Medicare patients does Patrick Leon Gray see?
CMS counts 12 Medicare patients who saw Patrick Gray in 2024, with an average age of 63.
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Where did Patrick Leon Gray go to medical school?
Patrick Gray graduated from University of Nebraska College of Medicine in 1995.
What drugs does Patrick Leon Gray prescribe most?
In 2024 Medicare Part D data, Patrick Gray's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
How long has Patrick Leon Gray been practicing?
Patrick Gray graduated from medical school in 1995, 31 years ago.
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