Dennis Eugene O'Connell, PA-C
- Medicare services, 2024
- 408
- Medicare patients, 2024
- 386
- Part D claims, 2024
- 264
- MIPS score, 2024
- 97
- Hospital affiliations
- 2
- Practice address
- 3901 Lone Tree Way, Antioch, CA 94509
- Practice phone
- Call (925) 779-7200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dennis O'Connell's professional email, personal email and mobile number
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Dennis Eugene O'Connell is a physician assistant in Antioch, California
Dennis O'Connell practices at Sutter Delta Medical Center in Antioch, California, part of Sutter Health.
Dennis O'Connell's NPI, 1093984452, was assigned on February 29, 2008. Dennis O'Connell holds California license PA 19228.
- NPI
- 1093984452NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698854172
- NPI enumeration date
- February 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 779-7200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dennis Eugene O'Connell practices at Sutter Delta Medical Center in Antioch, California
Dennis O'Connell's primary practice is Sutter Delta Medical Center, at 3901 Lone Tree Way, Antioch, CA 94509 in Contra Costa County. The practice phone is (925) 779-7200.
- Sutter Delta Medical Center3901 Lone Tree Way, Antioch, CA 94509 · Contra Costa CountyPhone(925) 779-7200
Source: Dmand AI Affiliation Data
Dennis Eugene O'Connell is affiliated with 2 sites of care and 3 medical groups
Dennis O'Connell's primary practice is Sutter Delta Medical Center in Antioch, California, part of Sutter Health. Dennis O'Connell is also affiliated with MarinHealth Medical Center. The medical group on file is Vituity. Dmand AI also links Dennis O'Connell to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dennis Eugene O'Connell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dennis O'Connell practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Delta Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dennis Eugene O'Connell is one of 11,482 physician assistants in California
Physician assistant is Dennis O'Connell's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dennis O'Connell is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Dennis O'Connell is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Dennis O'Connell
Counts of 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
Dennis Eugene O'Connell billed Medicare for 408 services in 2024
CMS data shows 408 Medicare services from Dennis O'Connell across 4 procedure codes in 2024, for 386 Medicare patients. Medicare paid $35,306 for them. Every service was in a facility, such as a hospital, rather than an office.
Dennis O'Connell's Medicare services by type, 2024
- Office and hospital visits382
- Tests and treatments26
Dennis O'Connell compared with the California median for physician assistants, 2024
- Dennis O'Connell
- California median
- Medicare services
- 408vs 2042.0 times
- Medicare patients
- 386vs 1053.7 times
- Part D claims
- 141vs 24342% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Dennis O'Connell's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dennis Eugene O'Connell treated 386 Medicare patients in 2024, average age 69
CMS counts 386 Medicare patients who saw Dennis O'Connell in 2024. The largest group is 65 to 74, with 166 patients. 68% of them have high blood pressure, and 63% have high cholesterol. 50% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dennis O'Connell's median patient age at 36, with 55% women.
Dennis O'Connell's Medicare patients by age, 2024
Dennis O'Connell's Medicare patients by sex, 2024
- Women23160%
- Men15540%
Chronic conditions among Dennis O'Connell's Medicare patients, 2024
- High blood pressure68%
- High cholesterol63%
- Arthritis41%
- Diabetes34%
- Mood disorders29%
- Anxiety28%
- Depression27%
- Chronic kidney disease20%
Share of Medicare patients with each condition. A patient can have several.
Dennis O'Connell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dennis Eugene O'Connell wrote 264 Medicare Part D claims in 2024
In 2024, Dennis O'Connell wrote 264 Medicare Part D claims for 199 patients. 94% of them were for generic drugs. CMS names the drug for 141 of them, across 5 drugs with 11 or more claims each, at $791 in total drug cost.
Dennis O'Connell's Part D claims by kind of drug, 2024
- Generic247 claims94%
- Brand-name and other17 claims6%
Dennis O'Connell'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 Dennis O'Connell's Part D claims, 2024
- Opioids21%56 of 264 claims
- Antibiotics44%116 of 264 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
Dennis Eugene O'Connell scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dennis O'Connell for performance year 2024, reported as part of a group. Dennis O'Connell accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dennis O'Connell's MIPS scores, performance year 2024
- 97of 100Final score
- 91.9of 100Quality
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dennis Eugene O'Connell received $93 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dennis O'Connell from 1 drug or device company in 2024. Entertainment make up the largest share, 100% of the total. Optos, Inc. paid the most, $93.
Companies that paid Dennis O'Connell the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dennis Eugene O'Connell is board certified in certified physician assistant
Dennis O'Connell is a member of AAPA.
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Dennis Eugene O'Connell'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Dennis Eugene O'Connell
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dennis Eugene O'Connell's NPI number?
Dennis Eugene O'Connell's NPI number is 1093984452. It was assigned on February 29, 2008, and it is active in the NPI Registry.
What does Dennis Eugene O'Connell specialize in?
Dennis Eugene O'Connell is a physician assistant in Antioch, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Dennis Eugene O'Connell practice?
Dennis O'Connell practices at 3901 Lone Tree Way, Antioch, CA 94509. Dennis O'Connell's primary practice is Sutter Delta Medical Center in Antioch, California, part of Sutter Health. Dmand AI also links Dennis O'Connell to 2 medical groups.
What is Dennis Eugene O'Connell's office phone number?
The practice phone on file for Dennis O'Connell is (925) 779-7200.
What is Dennis Eugene O'Connell's medical license number?
Dennis O'Connell holds California license PA 19228.
Which hospitals is Dennis Eugene O'Connell affiliated with?
Dennis O'Connell practices at Sutter Delta Medical Center in Antioch, California. Dennis O'Connell is also affiliated with MarinHealth Medical Center.
What medical group is Dennis Eugene O'Connell part of?
Dennis O'Connell is linked to Vituity. Dmand AI links Dennis O'Connell to 2 more medical groups.
Does Dennis Eugene O'Connell accept Medicare?
Yes. CMS data shows Dennis O'Connell billed Medicare for 408 services in 2024, and Dennis O'Connell accepts Medicare assignment.
What is Dennis Eugene O'Connell's MIPS score?
Dennis O'Connell's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dennis Eugene O'Connell see?
CMS counts 386 Medicare patients who saw Dennis O'Connell in 2024, with an average age of 69.
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Is Dennis Eugene O'Connell board certified?
Yes. Dennis O'Connell is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Dennis Eugene O'Connell bill to Medicare?
In 2024, Dennis O'Connell's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).
What drugs does Dennis Eugene O'Connell prescribe most?
In 2024 Medicare Part D data, Dennis O'Connell's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
Has Dennis Eugene O'Connell received payments from drug or device companies?
CMS Open Payments shows $93 in general payments to Dennis O'Connell from 1 company from 2024 to 2024. The largest total came from Optos, Inc.
How long has Dennis Eugene O'Connell been practicing?
Dennis O'Connell graduated from medical school in 2007, 19 years ago.
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