Dr. Andrew B. Stefaniwsky, MD
- Medicare services, 2024
- 1,262
- Medicare patients, 2024
- 524
- Part D claims, 2024
- 6,014
- Hospital affiliations
- 3
- Industry payments
- $9,747
- Practice address
- 97 West Parkway, Pompton Plains, NJ 07444
- Practice phone
- Call (973) 831-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stefaniwsky'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. Andrew B. Stefaniwsky is a gastroenterologist in Pompton Plains, New Jersey
Dr. Stefaniwsky practices at Chilton Medical Center in Pompton Plains, New Jersey, part of Atlantic Health System.
Dr. Stefaniwsky's NPI, 1811061807, was assigned on November 20, 2006. Dr. Stefaniwsky graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 1977. Dr. Stefaniwsky holds New Jersey license MA035013.
- NPI
- 1811061807NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527196203
- NPI enumeration date
- November 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (973) 831-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew B. Stefaniwsky practices at Chilton Medical Center in Pompton Plains, New Jersey
Dr. Stefaniwsky's primary practice is Chilton Medical Center, at 97 West Parkway, Pompton Plains, NJ 07444 in Morris County. The practice phone is (973) 831-5000.
- Chilton Medical Center97 West Parkway, Pompton Plains, NJ 07444 · Morris CountyPhone(973) 831-5000
Source: Dmand AI Affiliation Data
Dr. Andrew B. Stefaniwsky is affiliated with 5 sites of care and 2 medical groups
Dr. Stefaniwsky's primary practice is Chilton Medical Center in Pompton Plains, New Jersey, part of Atlantic Health System. Dr. Stefaniwsky is also affiliated with Morristown Medical Center. The medical group on file is Atlantic Medical Group. Dmand AI also links Dr. Stefaniwsky to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andrew B. Stefaniwsky's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stefaniwsky practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chilton Medical Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew B. Stefaniwsky is one of 691 gastroenterologists in New Jersey
Gastroenterology is Dr. Stefaniwsky's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Stefaniwsky is licensed in New Jersey.
Specialties and state licenses
- Gastroenterology, New JerseyPrimary
Gastroenterologists near Dr. Stefaniwsky
Counts of gastroenterologists 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. Andrew B. Stefaniwsky billed Medicare for 1,262 services in 2024
CMS data shows 1,262 Medicare services from Dr. Stefaniwsky across 11 procedure codes in 2024, for 524 Medicare patients. Medicare paid $121,790 for them.
Dr. Stefaniwsky's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8822024: 74016%
- Other services
- 2023: 2292024: 26214%
- Tests and treatments
- 2023: 2032024: 17713%
- Surgery
- 2023: 1442024: 8342%
Where Dr. Stefaniwsky's Medicare services took place, 2024
- In an office1,12689%
- In a facility13611%
Dr. Stefaniwsky compared with the New Jersey median for gastroenterologists, 2024
- Dr. Stefaniwsky
- New Jersey median
- Medicare services
- 1,262vs 68584% above
- Medicare patients
- 524vs 37540% above
- Part D claims
- 5,407vs 6118.8 times
Medians across 674 gastroenterologists in New Jersey with Dmand AI profiles that report each measure.
Dr. Stefaniwsky'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. Andrew B. Stefaniwsky treated 524 Medicare patients in 2024, average age 74
CMS counts 524 Medicare patients who saw Dr. Stefaniwsky in 2024. The largest group is 65 to 74, with 246 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stefaniwsky's median patient age at 57, with 50% women.
Dr. Stefaniwsky's Medicare patients by age, 2024
Dr. Stefaniwsky's Medicare patients by sex, 2024
- Women27152%
- Men25348%
Chronic conditions among Dr. Stefaniwsky's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis43%
- Diabetes26%
- Anxiety23%
- Ischemic heart disease22%
- Mood disorders18%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stefaniwsky's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women50%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew B. Stefaniwsky wrote 6,014 Medicare Part D claims in 2024
In 2024, Dr. Stefaniwsky wrote 6,014 Medicare Part D claims for 785 patients. 90% of them were for generic drugs. CMS names the drug for 5,407 of them, across 102 drugs with 11 or more claims each, at $381,725 in total drug cost. In 2023, CMS named 5,338 claims across 107 drugs.
Dr. Stefaniwsky's Part D claims by kind of drug, 2024
- Generic5,434 claims90%
- Brand-name and other580 claims10%
Dr. Stefaniwsky'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. Stefaniwsky's Part D claims, 2024
- Opioids1%39 of 6,014 claims
- Antibiotics3%184 of 6,014 claims
- Antipsychotics, patients 65 and over0%14 of 6,014 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: 5,3382024: 5,4071%
Drugs named by CMS: 102 in 2024, 107 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. Andrew B. Stefaniwsky ranks in the 75th percentile for colonoscopy in Medicare
Dr. Stefaniwsky accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 83 procedures of colonoscopy by Dr. Stefaniwsky, more than 75% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Stefaniwsky ranks in Medicare procedure volume
- Colonoscopy
- 75th percentile83 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 66th percentile57 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Andrew B. Stefaniwsky received $9,747 in industry payments from 2016 to 2025
CMS Open Payments shows 667 general payments to Dr. Stefaniwsky from 56 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, $1,122.
General payments to Dr. Stefaniwsky by program year, 2016 to 2025
General payments to Dr. Stefaniwsky by kind, 2016 to 2025
- Food and beverage$9,740100%
- Education$70%
Companies that paid Dr. Stefaniwsky 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. Andrew B. Stefaniwsky graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc)
Dr. Stefaniwsky graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew B. Stefaniwsky'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)Doctors and Clinicians Utilization Data (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. Andrew B. Stefaniwsky
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. Andrew B. Stefaniwsky's NPI number?
Dr. Andrew B. Stefaniwsky's NPI number is 1811061807. It was assigned on November 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew B. Stefaniwsky?
Dr. Andrew B. Stefaniwsky is a gastroenterologist in Pompton Plains, New Jersey. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Andrew B. Stefaniwsky practice?
Dr. Stefaniwsky practices at 97 West Parkway, Pompton Plains, NJ 07444. Dr. Stefaniwsky's primary practice is Chilton Medical Center in Pompton Plains, New Jersey, part of Atlantic Health System. Dmand AI also links Dr. Stefaniwsky to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Andrew B. Stefaniwsky's office phone number?
The practice phone on file for Dr. Stefaniwsky is (973) 831-5000.
What is Dr. Andrew B. Stefaniwsky's medical license number?
Dr. Stefaniwsky holds New Jersey license MA035013.
Which hospitals is Dr. Andrew B. Stefaniwsky affiliated with?
Dr. Stefaniwsky practices at Chilton Medical Center in Pompton Plains, New Jersey. Dr. Stefaniwsky is also affiliated with Morristown Medical Center. Dmand AI links Dr. Stefaniwsky to 1 more hospital.
What medical group is Dr. Andrew B. Stefaniwsky part of?
Dr. Stefaniwsky is linked to Atlantic Medical Group. Dmand AI links Dr. Stefaniwsky to 1 more medical group.
Does Dr. Andrew B. Stefaniwsky accept Medicare?
Yes. CMS data shows Dr. Stefaniwsky billed Medicare for 1,262 services in 2024, and Dr. Stefaniwsky accepts Medicare assignment.
How many Medicare patients does Dr. Andrew B. Stefaniwsky see?
CMS counts 524 Medicare patients who saw Dr. Stefaniwsky in 2024, with an average age of 74.
What services does Dr. Andrew B. Stefaniwsky bill to Medicare?
In 2024, Dr. Stefaniwsky's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and heart test or procedure (93000).
Show 4 more questionsShow fewer questions
Where did Dr. Andrew B. Stefaniwsky go to medical school?
Dr. Stefaniwsky graduated from Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) in 1977.
What drugs does Dr. Andrew B. Stefaniwsky prescribe most?
In 2024 Medicare Part D data, Dr. Stefaniwsky's most prescribed drugs by claims were Atorvastatin Calcium, Pantoprazole Sodium and Amlodipine Besylate.
Has Dr. Andrew B. Stefaniwsky received payments from drug or device companies?
CMS Open Payments shows $9,747 in general payments to Dr. Stefaniwsky from 56 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Andrew B. Stefaniwsky been practicing?
Dr. Stefaniwsky graduated from medical school in 1977, 49 years ago.
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