Proc Natl Acad Sci U S A
Breast NeoplasmsChemotherapy, AdjuvantNeoadjuvant Therapy
Dr. John A A. Butler, MD
NPI1902986094
- Medicare services, 2023
- 107
- Part D claims, 2017
- 11
- Publications
- 20
- Industry payments
- $63
- Affiliated sites
- 1
- Practice address
- 101 S The City Dr, Orange, CA 92868
- Practice phone
- Call (714) 513-5590
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCI Medical Center
Orange, California
Find Dr. Butler'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. John A A. Butler is a surgical oncologist in Orange, California
Dr. Butler practices at UCI Medical Center in Orange, California.
Dr. Butler's NPI, 1902986094, was assigned on October 16, 2006. Dr. Butler graduated from Loyola University Chicago Stritch School of Medicine in 1976. Dr. Butler holds California license 000000G35047.
NPI and contact details
- NPI
- 1902986094NPI Registry (opens in a new tab)
- NPI enumeration date
- October 16, 2006
- NPI status
- Active
- Practice phone
- (714) 513-5590
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John A A. Butler practices at UCI Medical Center in Orange, California
Dr. Butler's primary practice is UCI Medical Center, at 101 S The City Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 513-5590.
- UCI Medical Center101 S The City Dr, Orange, CA 92868 · Orange CountyPhone(714) 513-5590
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John A A. Butler is affiliated with 2 sites of care and 1 medical group
Dr. Butler's primary practice is UCI Medical Center in Orange, California. The medical group on file is UCI Health Physicians. Dmand AI also links Dr. Butler 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 Dr. John A A. Butler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Butler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Butler practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John A A. Butler is one of 243 surgical oncologists in California
Surgical oncology is Dr. Butler's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Butler is licensed in California.
Specialties and state licenses
- Surgical oncology, CaliforniaPrimary
Clinical focus
Dmand AI lists mastectomy among the conditions Dr. Butler treats.
Surgical oncologists near Dr. Butler
Counts of surgical oncologists 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. John A A. Butler billed Medicare for 107 services in 2023
CMS data shows 107 Medicare services from Dr. Butler across 2 procedure codes in 2023, all of them office visits. Medicare paid $5,693 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2023107
Paid by Medicare$5,693
Procedure codes2
Dr. Butler's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1362023: 10721%
Dr. Butler compared with the California median for surgical oncologists, 2023
- Dr. Butler
- California median
- Medicare services
- 107vs 17238% below
- Part D claims
- 11vs 2250% below
Medians across 217 surgical oncologists in California with Dmand AI profiles that report each measure.
Dr. Butler's most billed Medicare procedure codes, 2023
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. Butler?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Butler and other surgical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John A A. Butler's patients have a median age of 51
Across all payers, Dmand AI patient panel data puts Dr. Butler's median patient age at 51, with 86% women.
Dr. Butler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women86%
- Men14%
Source: Dmand AI Patient Panel Data
Dr. John A A. Butler wrote 11 Medicare Part D claims in 2017
In 2017, Dr. Butler wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $242 in total drug cost. In 2016, CMS named 13 claims across 1 drug.
Part D claims, 201711
Drugs named by CMS1
Total drug cost$242
Dr. Butler's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 132017: 1115%
Drugs named by CMS: 1 in 2017, 1 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Find surgical oncologists like Dr. Butler by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. John A A. Butler has 20 publications on record
Dmand AI links 20 papers to Dr. Butler in 2011. The most frequent topics are Breast Neoplasms, Antineoplastic Agents and Abdominal Neoplasms. Dr. Butler has published most often in Arch Surg. Dr. Butler's most frequent co-authors are Craig V. Smith, MD, Karen T T. Lane, MD and Maki Yamamoto, MD.
Papers20
Topics Dr. Butler writes about most
- Breast Neoplasms
- Antineoplastic Agents
- Abdominal Neoplasms
- Antineoplastic Combined Chemotherapy Protocols
- Biopsy, Needle
- Liver Neoplasms
- Neoadjuvant Therapy
- Predictive Value of Tests
Dr. Butler's most frequent co-authors
Recent publications by Dr. Butler
Antibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic Agents
Br J Cancer Suppl
Antineoplastic AgentsCell SurvivalOxygen Consumption
Ann Vasc Surg
Hypertension, PortalLiver Diseases, AlcoholicRadiography
Abdominal NeoplasmsBreast NeoplasmsCarcinoma, Lobular
See who Dr. Butler researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Butler works with, so you can find a warm path to the right surgical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John A A. Butler received $63 in industry payments from 2017 to 2025
CMS Open Payments shows 3 general payments to Dr. Butler from 2 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $36.
General payments to Dr. Butler by program year, 2017 to 2025
Companies that paid Dr. Butler the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John A A. Butler has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Butler.
Awards and honors for Dr. Butler
- Undated
- Checkbook Top Doc
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. John A A. Butler graduated from Loyola University Chicago Stritch School of Medicine
Dr. Butler graduated from Loyola University Chicago Stritch School of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. John A A. Butler accepts plans from 3 insurance carriers
Dr. Butler is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Butler accepts, by number of carriers
- Medicare3
- PPO2
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. John A A. Butler'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 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John A A. Butler
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. John A A. Butler's NPI number?
Dr. John A A. Butler's NPI number is 1902986094. It was assigned on October 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John A A. Butler?
Dr. John A A. Butler is a surgical oncologist in Orange, California. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. John A A. Butler practice?
Dr. Butler practices at 101 S The City Dr, Orange, CA 92868. Dr. Butler's primary practice is UCI Medical Center in Orange, California. Dmand AI also links Dr. Butler to 1 group practice or clinic.
What is Dr. John A A. Butler's office phone number?
The practice phone on file for Dr. Butler is (714) 513-5590.
What is Dr. John A A. Butler's medical license number?
Dr. Butler holds California license 000000G35047.
What medical group is Dr. John A A. Butler part of?
Dr. Butler is linked to UCI Health Physicians.
Does Dr. John A A. Butler accept Medicare?
Yes. CMS data shows Dr. Butler billed Medicare for 107 services in 2023.
What services does Dr. John A A. Butler bill to Medicare?
In 2023, Dr. Butler's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. John A A. Butler go to medical school?
Dr. Butler graduated from Loyola University Chicago Stritch School of Medicine in 1976.
What drugs does Dr. John A A. Butler prescribe most?
In 2017 Medicare Part D data, Dr. Butler's most prescribed drugs by claims were Levothyroxine Sodium.
Show 5 more questionsShow fewer questions
Has Dr. John A A. Butler received payments from drug or device companies?
CMS Open Payments shows $63 in general payments to Dr. Butler from 2 companies from 2017 to 2025. The largest total came from Allergan Inc.
How long has Dr. John A A. Butler been practicing?
Dr. Butler graduated from medical school in 1976, 50 years ago.
Does Dr. John A A. Butler do research?
Dmand AI links 20 publications to Dr. Butler.
Who does Dr. John A A. Butler publish with?
Dr. Butler's most frequent co-authors are Craig V. Smith, MD (3 shared papers), Karen T T. Lane, MD (2 shared papers) and Maki Yamamoto, MD (2 shared papers).
What insurance does Dr. John A A. Butler accept?
Dr. Butler is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
Selling to surgical oncology practices?
See surgical oncologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card