Dr. Michelle Antonowicz, MD
- Medicare services, 2024
- 352
- Medicare patients, 2024
- 352
- Part D claims, 2024
- 136
- Hospital affiliations
- 1
- Industry payments
- $651
- Practice address
- 1 Bay Avenue, Montclair, NJ 07042
- Practice phone
- Call (973) 429-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Antonowicz's professional email, personal email and mobile number
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Dr. Michelle Antonowicz is an emergency medicine physician in Montclair, New Jersey
Dr. Antonowicz practices at Hackensack Meridian Mountainside Medical Center in Montclair, New Jersey, part of Ardent Health.
Dr. Antonowicz's NPI, 1780683128, was assigned on July 19, 2005. Dr. Antonowicz graduated from Rutgers New Jersey Medical School in 1996. Dr. Antonowicz holds New Jersey license 25MA07150800.
- NPI
- 1780683128NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335120690
- NPI enumeration date
- July 19, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (973) 429-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michelle Antonowicz practices at Hackensack Meridian Mountainside Medical Center in Montclair, New Jersey
Dr. Antonowicz's primary practice is Hackensack Meridian Mountainside Medical Center, at 1 Bay Avenue, Montclair, NJ 07042 in Essex County. The practice phone is (973) 429-6000.
- Hackensack Meridian Mountainside Medical Center1 Bay Avenue, Montclair, NJ 07042 · Essex CountyPhone(973) 429-6000
Source: Dmand AI Affiliation Data
Dr. Michelle Antonowicz is affiliated with 1 site of care and 2 medical groups
Dr. Antonowicz's primary practice is Hackensack Meridian Mountainside Medical Center in Montclair, New Jersey, part of Ardent Health. The medical group on file is Emergency Associates of Montclair. Dmand AI also links Dr. Antonowicz to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michelle Antonowicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Antonowicz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hackensack Meridian Mountainside Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michelle Antonowicz is one of 1,548 emergency medicine physicians in New Jersey
Emergency medicine is Dr. Antonowicz's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Antonowicz is licensed in New Jersey.
Specialties and state licenses
- Emergency medicine, New JerseyPrimary
Emergency medicine physicians near Dr. Antonowicz
Counts of emergency medicine physicians 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. Michelle Antonowicz billed Medicare for 352 services in 2024
CMS data shows 352 Medicare services from Dr. Antonowicz across 3 procedure codes in 2024, for 352 Medicare patients. Medicare paid $48,828 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Antonowicz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3522024: 352No change
Dr. Antonowicz compared with the New Jersey median for emergency medicine physicians, 2024
- Dr. Antonowicz
- New Jersey median
- Medicare services
- 352vs 3268% above
- Medicare patients
- 352vs 32110% above
- Part D claims
- 33vs 4730% below
Medians across 1,494 emergency medicine physicians in New Jersey with Dmand AI profiles that report each measure.
Dr. Antonowicz'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
Dr. Michelle Antonowicz treated 352 Medicare patients in 2024, average age 77
CMS counts 352 Medicare patients who saw Dr. Antonowicz in 2024. The largest group is 75 to 84, with 139 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 2.07, 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. Antonowicz's median patient age at 61, with 57% women.
Dr. Antonowicz's Medicare patients by age, 2024
Dr. Antonowicz's Medicare patients by sex, 2024
- Women20458%
- Men14842%
Chronic conditions among Dr. Antonowicz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease54%
- Diabetes46%
- Mood disorders44%
- Anxiety42%
- Heart failure38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Antonowicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women57%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michelle Antonowicz wrote 136 Medicare Part D claims in 2024
In 2024, Dr. Antonowicz wrote 136 Medicare Part D claims for 103 patients. 96% of them were for generic drugs. CMS names the drug for 33 of them, across 2 drugs with 11 or more claims each, at $331 in total drug cost. In 2023, CMS named 71 claims across 5 drugs.
Dr. Antonowicz's Part D claims by kind of drug, 2024
- Generic131 claims96%
- Brand-name and other5 claims4%
Dr. Antonowicz'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. Antonowicz's Part D claims, 2024
- Antibiotics49%67 of 136 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: 712024: 3354%
Drugs named by CMS: 2 in 2024, 5 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
How Dr. Michelle Antonowicz takes part in Medicare
Dr. Antonowicz 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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Dr. Michelle Antonowicz received $651 in industry payments from 2016 to 2025
CMS Open Payments shows 10 general payments to Dr. Antonowicz from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $366.
General payments to Dr. Antonowicz by program year, 2016 to 2025
Companies that paid Dr. Antonowicz 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. Michelle Antonowicz graduated from Rutgers New Jersey Medical School
Dr. Antonowicz graduated from Rutgers New Jersey Medical School in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michelle Antonowicz'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) |
| 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 Dr. Michelle Antonowicz
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. Michelle Antonowicz's NPI number?
Dr. Michelle Antonowicz's NPI number is 1780683128. It was assigned on July 19, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Michelle Antonowicz?
Dr. Michelle Antonowicz is an emergency medicine physician in Montclair, New Jersey. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michelle Antonowicz practice?
Dr. Antonowicz practices at 1 Bay Avenue, Montclair, NJ 07042. Dr. Antonowicz's primary practice is Hackensack Meridian Mountainside Medical Center in Montclair, New Jersey, part of Ardent Health. Dmand AI also links Dr. Antonowicz to 1 medical group.
What is Dr. Michelle Antonowicz's office phone number?
The practice phone on file for Dr. Antonowicz is (973) 429-6000.
What is Dr. Michelle Antonowicz's medical license number?
Dr. Antonowicz holds New Jersey license 25MA07150800.
Which hospitals is Dr. Michelle Antonowicz affiliated with?
Dr. Antonowicz practices at Hackensack Meridian Mountainside Medical Center in Montclair, New Jersey.
What medical group is Dr. Michelle Antonowicz part of?
Dr. Antonowicz is linked to Emergency Associates of Montclair. Dmand AI links Dr. Antonowicz to 1 more medical group.
Does Dr. Michelle Antonowicz accept Medicare?
Yes. CMS data shows Dr. Antonowicz billed Medicare for 352 services in 2024, and Dr. Antonowicz accepts Medicare assignment.
How many Medicare patients does Dr. Michelle Antonowicz see?
CMS counts 352 Medicare patients who saw Dr. Antonowicz in 2024, with an average age of 77.
What services does Dr. Michelle Antonowicz bill to Medicare?
In 2024, Dr. Antonowicz's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Show 4 more questionsShow fewer questions
Where did Dr. Michelle Antonowicz go to medical school?
Dr. Antonowicz graduated from Rutgers New Jersey Medical School in 1996.
What drugs does Dr. Michelle Antonowicz prescribe most?
In 2024 Medicare Part D data, Dr. Antonowicz's most prescribed drugs by claims were Cefuroxime and Cephalexin.
Has Dr. Michelle Antonowicz received payments from drug or device companies?
CMS Open Payments shows $651 in general payments to Dr. Antonowicz from 6 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Michelle Antonowicz been practicing?
Dr. Antonowicz graduated from medical school in 1996, 30 years ago.
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