Dr. Michael J. Antonini, MD
- Medicare services, 2024
- 418
- Medicare patients, 2026
- 279
- Part D claims, 2026
- 188
- Hospital affiliations
- 5
- Industry payments
- $4,744
- Practice address
- 11815 Education Street, Auburn, CA 95603
- Practice phone
- Call (530) 889-6075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sutter Auburn Faith Hospital - Unit
Acute Care Hospital-Unit · Auburn, California
Find Dr. Antonini'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. Michael J. Antonini is a general surgeon in Auburn, California
Dr. Antonini practices at Sutter Auburn Faith Hospital - Unit in Auburn, California.
Dr. Antonini's NPI, 1700924941, was assigned on February 1, 2007. Dr. Antonini graduated from Medical College Of Wisconsin in 1993. Dr. Antonini holds California license G84850.
- NPI
- 1700924941NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325111214
- NPI enumeration date
- February 1, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 889-6075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Antonini practices at Sutter Auburn Faith Hospital - Unit in Auburn, California
Dr. Antonini's primary practice is Sutter Auburn Faith Hospital - Unit, at 11815 Education Street, Auburn, CA 95603 in Placer County. The practice phone is (530) 889-6075.
- Sutter Auburn Faith Hospital - Unit11815 Education Street, Auburn, CA 95603 · Placer CountyPhone(530) 889-6075
Source: Dmand AI Affiliation Data
Dr. Michael J. Antonini is affiliated with 6 sites of care and 1 medical group
Dr. Antonini's primary practice is Sutter Auburn Faith Hospital - Unit in Auburn, California. Dr. Antonini is also affiliated with Sutter Auburn Faith Hospital. The medical group on file is SGMF Radiology. Dmand AI also links Dr. Antonini to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael J. Antonini's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Antonini practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Auburn Faith Hospital - Unit | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Antonini is one of 2,926 general surgeons in California
Surgery is Dr. Antonini's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Antonini is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Antonini's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Michigan license
Clinical focus
Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, appendectomy, blood vessel access for dialysis, cancerous skin growth removal, colon removal, esophagus, stomach, or upper small intestine surgery and gallbladder removal among the conditions Dr. Antonini treats.
General surgeons near Dr. Antonini
Counts of general 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. Michael J. Antonini billed Medicare for 418 services in 2024
CMS data shows 418 Medicare services from Dr. Antonini across 12 procedure codes in 2024, for 279 Medicare patients. Medicare paid $51,646 for them.
Dr. Antonini's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2152024: 37273%
- Surgery
- 2023: 292024: 4659%
Where Dr. Antonini's Medicare services took place, 2024
- In an office22053%
- In a facility19847%
Dr. Antonini compared with the California median for general surgeons, 2024
- Dr. Antonini
- California median
- Medicare services
- 418vs 1662.5 times
- Medicare patients
- 279vs 1212.3 times
- Part D claims
- 150vs 344.4 times
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Antonini'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Antonini and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael J. Antonini treated 279 Medicare patients in 2026, average age 73
CMS counts 279 Medicare patients who saw Dr. Antonini in 2026. The largest group is 65 to 74, with 134 patients. 73% of them have high blood pressure, and 70% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.92, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Antonini's median patient age at 65, with 43% women.
Dr. Antonini's Medicare patients by age, 2026
Dr. Antonini's Medicare patients by sex, 2026
- Women12244%
- Men15756%
Chronic conditions among Dr. Antonini's Medicare patients, 2026
- High blood pressure73%
- High cholesterol70%
- Arthritis49%
- Chronic kidney disease39%
- Ischemic heart disease32%
- Mood disorders32%
- Anxiety29%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Antonini's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Michael J. Antonini wrote 188 Medicare Part D claims in 2026
In 2026, Dr. Antonini wrote 188 Medicare Part D claims for 121 patients. 99% of them were for generic drugs. CMS names the drug for 150 of them, across 3 drugs with 11 or more claims each, at $488 in total drug cost. In 2023, CMS named 99 claims across 2 drugs.
Dr. Antonini's Part D claims by kind of drug, 2026
- Generic187 claims99%
- Brand-name and other1 claims1%
Dr. Antonini'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. Antonini's Part D claims, 2026
- Opioids77%145 of 188 claims
- Antibiotics12%22 of 188 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: 992024: 15052%
Drugs named by CMS: 3 in 2024, 2 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), 2026 data
Dr. Michael J. Antonini ranks in the 93rd percentile for hernia repair (minimally invasive) in Medicare
Dr. Antonini accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 26 procedures of hernia repair (minimally invasive) by Dr. Antonini, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Antonini ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 93rd percentile26 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 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)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael J. Antonini received $4,744 in industry payments from 2018 to 2023
CMS Open Payments shows 15 general payments to Dr. Antonini from 5 drug and device companies from 2018 to 2023. Education make up the largest share, 53% of the total. Intuitive Surgical, Inc. paid the most, $4,666.
General payments to Dr. Antonini by program year, 2018 to 2023
General payments to Dr. Antonini by kind, 2018 to 2023
- Education$2,50053%
- Travel and lodging$1,76037%
- Food and beverage$46710%
- Gifts$160%
Companies that paid Dr. Antonini the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Antonini has 1 award and honors on record
Dmand AI lists 1 award for Dr. Antonini, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Antonini
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Michael J. Antonini graduated from Medical College Of Wisconsin
Dr. Antonini graduated from Medical College Of Wisconsin in 1993.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Michael J. Antonini accepts plans from 13 insurance carriers
Dr. Antonini is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- HCSC
- Humana
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Antonini accepts, by number of carriers
- PPO9
- Medicare7
- HMO5
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael J. Antonini'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Michael J. Antonini
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. Michael J. Antonini's NPI number?
Dr. Michael J. Antonini's NPI number is 1700924941. It was assigned on February 1, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Antonini?
Dr. Michael J. Antonini is a general surgeon in Auburn, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael J. Antonini practice?
Dr. Antonini practices at 11815 Education Street, Auburn, CA 95603. Dr. Antonini's primary practice is Sutter Auburn Faith Hospital - Unit in Auburn, California. Dmand AI also links Dr. Antonini to 3 hospitals and 1 group practice or clinic, and a free account names each one.
What is Dr. Michael J. Antonini's office phone number?
The practice phone on file for Dr. Antonini is (530) 889-6075. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Michael J. Antonini's email address?
Dmand AI checks professional and personal email addresses for Dr. Antonini through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Michael J. Antonini's medical license number?
Dr. Antonini holds California license G84850, one of the licenses on file in 2 states.
Which states has Dr. Michael J. Antonini been licensed in?
Dmand AI has state licenses on file for Dr. Antonini in California (1998 to 2026) and Michigan (1995 to 2000).
Which hospitals is Dr. Michael J. Antonini affiliated with?
Dr. Antonini is affiliated with Sutter Auburn Faith Hospital. Dmand AI links Dr. Antonini to 4 more hospitals, named with a free account.
What medical group is Dr. Michael J. Antonini part of?
Dr. Antonini is linked to SGMF Radiology.
Who does Dr. Michael J. Antonini practice with?
Dmand AI links 2,567 HCPs to Dr. Antonini's primary medical group, 40 of them general surgeons. A free account lists them, with verified contacts.
Show 10 more questionsShow fewer questions
Does Dr. Michael J. Antonini accept Medicare?
Yes. CMS data shows Dr. Antonini billed Medicare for 418 services in 2024, and Dr. Antonini accepts Medicare assignment.
How many Medicare patients does Dr. Michael J. Antonini see?
CMS counts 279 Medicare patients who saw Dr. Antonini in 2026, with an average age of 73.
Is Dr. Michael J. Antonini board certified?
Yes. Dr. Antonini is board certified in surgery by the American Board of Surgery.
What services does Dr. Michael J. Antonini bill to Medicare?
In 2024, Dr. Antonini's most billed Medicare services were office visit, new patient (99204), hospital inpatient care (99231) and hospital inpatient care (99223).
Where did Dr. Michael J. Antonini go to medical school?
Dr. Antonini graduated from Medical College Of Wisconsin in 1993.
What drugs does Dr. Michael J. Antonini prescribe most?
In 2024 Medicare Part D data, Dr. Antonini's most prescribed drugs by claims were Oxycodone HCl, Hydrocodone-Acetaminophen and Ondansetron HCl.
Has Dr. Michael J. Antonini received payments from drug or device companies?
CMS Open Payments shows $4,744 in general payments to Dr. Antonini from 5 companies from 2018 to 2023. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Michael J. Antonini been practicing?
Dr. Antonini graduated from medical school in 1993, 33 years ago.
What EHR does Dr. Michael J. Antonini's practice use?
Dmand AI tracks the EHR system at Sutter Auburn Faith Hospital - Unit and at 5 more affiliated sites. The vendor and product are available with a free Dmand AI account.
What insurance does Dr. Michael J. Antonini accept?
Dr. Antonini is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit. The full carrier list is available with a free Dmand AI account.
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