Dr. Daniel Stuart Brereton, DO
- Medicare services, 2024
- 788
- Medicare patients, 2024
- 179
- Part D claims, 2024
- 338
- Publications
- 2
- MIPS score, 2024
- 100
- Practice address
- 9834 Genesee Ave, La Jolla, CA 92037
- Practice phone
- Call (858) 453-3133
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
EGL Ambulatory Surgery Center
Surgery Center - Not Medicare-Certified · La Jolla, California
Find Dr. Brereton'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.
Dr. Daniel Stuart Brereton is an orthopedic surgeon in La Jolla, California
Dr. Brereton practices at EGL Ambulatory Surgery Center in La Jolla, California.
Dr. Brereton's NPI, 1487093951, was assigned on June 18, 2013. Dr. Brereton graduated from Arizona College of Osteopathic Medicine - Glendale in 2013. Dr. Brereton's California license number on file is 20A13592.
- NPI
- 1487093951NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628325479
- NPI enumeration date
- June 18, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 453-3133
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Stuart Brereton practices at EGL Ambulatory Surgery Center in La Jolla, California
Dr. Brereton's primary practice is EGL Ambulatory Surgery Center, at 9834 Genesee Ave, La Jolla, CA 92037. The practice phone is (858) 453-3133.
- EGL Ambulatory Surgery Center9834 Genesee Ave, La Jolla, CA 92037Phone(858) 453-3133
Source: Dmand AI Affiliation Data
Dr. Daniel Stuart Brereton is affiliated with 9 sites of care and 3 medical groups
Dr. Brereton's primary practice is EGL Ambulatory Surgery Center in La Jolla, California. Dr. Brereton is also affiliated with Scripps Memorial Hospital Encinitas. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Brereton to 3 more hospitals, 3 group practices and clinics, 2 medical groups and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Daniel Stuart Brereton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brereton practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| EGL Ambulatory Surgery Center | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Stuart Brereton is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Brereton's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Brereton is board certified in orthopedic surgery by the AOA Board of Orthopedic Surgery. Dmand AI has Dr. Brereton's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Texas license
Clinical focus
Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, carpal tunnel syndrome, hip replacement, joint arthropathy, joint pain, knee arthroscopy and knee injury among the conditions Dr. Brereton treats.
Orthopedic surgeons near Dr. Brereton
Counts of orthopedic surgeons 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
Dr. Daniel Stuart Brereton billed Medicare for 788 services in 2024
CMS data shows 788 Medicare services from Dr. Brereton across 14 procedure codes in 2024, for 179 Medicare patients. Medicare paid $62,984 for them.
Dr. Brereton's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2892024: 2983%
- Drugs given in the office
- 2023: 2712024: 2508%
- Imaging
- 2023: 1162024: 14828%
- Surgery
- 2023: 552024: 9267%
Where Dr. Brereton's Medicare services took place, 2024
- In an office69488%
- In a facility9412%
Dr. Brereton compared with the California median for orthopedic surgeons, 2024
- Dr. Brereton
- California median
- Medicare services
- 788vs 68315% above
- Medicare patients
- 179vs 21517% below
- Part D claims
- 285vs 704.1 times
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Brereton'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.
Need commercial claims for Dr. Brereton?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brereton and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Stuart Brereton treated 179 Medicare patients in 2024, average age 73
CMS counts 179 Medicare patients who saw Dr. Brereton in 2024. The largest group is 65 to 74, with 89 patients. 75% of them have arthritis, and 74% have high blood pressure. 37% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brereton's median patient age at 62, with 52% women.
Dr. Brereton's Medicare patients by age, 2024
Dr. Brereton's Medicare patients by sex, 2024
- Women10257%
- Men7743%
Chronic conditions among Dr. Brereton's Medicare patients, 2024
- Arthritis75%
- High blood pressure74%
- High cholesterol74%
- Mood disorders36%
- Depression34%
- Diabetes32%
- Anxiety26%
- Ischemic heart disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brereton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Stuart Brereton wrote 338 Medicare Part D claims in 2024
In 2024, Dr. Brereton wrote 338 Medicare Part D claims for 107 patients. 100% of them were for generic drugs. CMS names the drug for 285 of them, across 7 drugs with 11 or more claims each, at $3,189 in total drug cost. In 2023, CMS named 267 claims across 9 drugs.
Dr. Brereton's Part D claims by kind of drug, 2024
- Generic337 claims100%
- Brand-name and other1 claims0%
Dr. Brereton'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 Dr. Brereton's Part D claims, 2024
- Opioids42%141 of 338 claims
- Antibiotics11%37 of 338 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2672024: 2857%
Drugs named by CMS: 7 in 2024, 9 in 2023.
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
Dr. Daniel Stuart Brereton scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Brereton for performance year 2024, reported as part of a group. Dr. Brereton accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Brereton as offering telehealth. CMS counts 19 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Brereton, more than 61% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Brereton's MIPS scores, performance year 2024
- 100of 100Final score
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Brereton ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 61st percentile19 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Knee replacement: 1 to 10 procedures (CMS shows small counts as a range)
Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Daniel Stuart Brereton has 2 publications on record
Dmand AI links 2 papers to Dr. Brereton in 2019. The most frequent topics are Radiography. Dr. Brereton's most frequent co-authors are Todd C. Moen, MD, Jerrick Gene Robker, DO and John Anthony Schlechter, DO.
Topics Dr. Brereton writes about most
- Radiography
Dr. Brereton's most frequent co-authors
- Todd C. Moen, MD1 shared paper
- Jerrick Gene Robker, DO1 shared paper
- John Anthony Schlechter, DO1 shared paper
Recent publications by Dr. Brereton
J Shoulder Elbow Surg
See who Dr. Brereton researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Brereton works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel Stuart Brereton received $49,237 in industry payments from 2016 to 2025
CMS Open Payments shows 182 general payments to Dr. Brereton from 33 drug and device companies from 2016 to 2025. Education make up the largest share, 23% of the total. Encore Medical, LP paid the most, $16,540.
General payments to Dr. Brereton by program year, 2016 to 2025
General payments to Dr. Brereton by kind, 2016 to 2025
- Education$10,99023%
- Grants$10,00021%
- Honoraria$9,00019%
- Food and beverage$8,95018%
- Other$9,50320%
Companies that paid Dr. Brereton the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel Stuart Brereton graduated from Arizona College of Osteopathic Medicine - Glendale
Dr. Brereton graduated from Arizona College of Osteopathic Medicine - Glendale in 2013. Dr. Brereton is a member of American Shoulder and Elbow Surgeons.
- Medical school
- Board certified in orthopedic surgery
Source: Dmand AI Professional Profile Data
Dr. Daniel Stuart Brereton accepts plans from 10 insurance carriers
Dr. Brereton is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +2 more carriersWith a free account
Plan types Dr. Brereton accepts, by number of carriers
- Medicare9
- PPO7
- HMO5
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Daniel Stuart Brereton'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. Daniel Stuart Brereton
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Daniel Stuart Brereton's NPI number?
Dr. Daniel Stuart Brereton's NPI number is 1487093951. It was assigned on June 18, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Stuart Brereton?
Dr. Daniel Stuart Brereton is an orthopedic surgeon in La Jolla, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Daniel Stuart Brereton practice?
Dr. Brereton practices at 9834 Genesee Ave, La Jolla, CA 92037. Dr. Brereton's primary practice is EGL Ambulatory Surgery Center in La Jolla, California. Dmand AI also links Dr. Brereton to 3 hospitals, 3 group practices and clinics, 2 medical groups and 1 home health agency.
What is Dr. Daniel Stuart Brereton's office phone number?
The practice phone on file for Dr. Brereton is (858) 453-3133.
What is Dr. Daniel Stuart Brereton's medical license number?
Dr. Brereton's California license number on file is 20A13592, one of the licenses on file in 2 states.
Which states has Dr. Daniel Stuart Brereton been licensed in?
Dmand AI has state licenses on file for Dr. Brereton in California (2014 to 2025) and Texas (2018 to 2027).
Which hospitals is Dr. Daniel Stuart Brereton affiliated with?
Dr. Brereton is affiliated with Scripps Memorial Hospital Encinitas. Dmand AI links Dr. Brereton to 3 more hospitals.
What medical group is Dr. Daniel Stuart Brereton part of?
Dr. Brereton is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Brereton to 2 more medical groups.
Does Dr. Daniel Stuart Brereton accept Medicare?
Yes. CMS data shows Dr. Brereton billed Medicare for 788 services in 2024, and Dr. Brereton accepts Medicare assignment.
Does Dr. Daniel Stuart Brereton offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Brereton as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Daniel Stuart Brereton's MIPS score?
Dr. Brereton's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Daniel Stuart Brereton see?
CMS counts 179 Medicare patients who saw Dr. Brereton in 2024, with an average age of 73.
Is Dr. Daniel Stuart Brereton board certified?
Yes. Dr. Brereton is board certified in orthopedic surgery by the AOA Board of Orthopedic Surgery.
What services does Dr. Daniel Stuart Brereton bill to Medicare?
In 2024, Dr. Brereton's most billed Medicare services were injected or infused drug (J3301), office visit, established patient (99214) and diagnostic imaging (73030).
Where did Dr. Daniel Stuart Brereton go to medical school?
Dr. Brereton graduated from Arizona College of Osteopathic Medicine - Glendale in 2013.
What drugs does Dr. Daniel Stuart Brereton prescribe most?
In 2024 Medicare Part D data, Dr. Brereton's most prescribed drugs by claims were Celecoxib, Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
Has Dr. Daniel Stuart Brereton received payments from drug or device companies?
CMS Open Payments shows $49,237 in general payments to Dr. Brereton from 33 companies from 2016 to 2025. The largest total came from Encore Medical, LP.
How long has Dr. Daniel Stuart Brereton been practicing?
Dr. Brereton graduated from medical school in 2013, 13 years ago.
Does Dr. Daniel Stuart Brereton do research?
Dmand AI links 2 publications to Dr. Brereton.
Who does Dr. Daniel Stuart Brereton publish with?
Dr. Brereton's most frequent co-authors are Todd C. Moen, MD (1 shared paper), Jerrick Gene Robker, DO (1 shared paper) and John Anthony Schlechter, DO (1 shared paper).
What insurance does Dr. Daniel Stuart Brereton accept?
Dr. Brereton is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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