Dr. Stefan Adrian Gillen, DO
- Medicare services, 2024
- 378
- Medicare patients, 2024
- 200
- Part D claims, 2024
- 279
- Publications
- 2
- Hospital affiliations
- 5
- Practice address
- 100 Madison Ave, Morristown, NJ 07962
- Practice phone
- Call (973) 971-5450
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gillen'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. Stefan Adrian Gillen is an epilepsy physician in Morristown, New Jersey
Dr. Gillen practices at Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System.
Dr. Gillen's NPI, 1003302670, was assigned on July 7, 2018. Dr. Gillen graduated from Rowan University School of Osteopathic Medicine in 2018. Dr. Gillen holds New Jersey license 25MB11831000.
- NPI
- 1003302670NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365827615
- NPI enumeration date
- July 7, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (973) 971-5450
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stefan Adrian Gillen practices at Morristown Medical Center in Morristown, New Jersey
Dr. Gillen's primary practice is Morristown Medical Center, at 100 Madison Ave, Morristown, NJ 07962 in Morris County. The practice phone is (973) 971-5450.
- Morristown Medical Center100 Madison Ave, Morristown, NJ 07962 · Morris CountyPhone(973) 971-5450
Source: Dmand AI Affiliation Data
Dr. Stefan Adrian Gillen is affiliated with 6 sites of care and 1 medical group
Dr. Gillen's primary practice is Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System. Dr. Gillen is also affiliated with Overlook Medical Center. The medical group on file is Atlantic Medical Group. Dmand AI also links Dr. Gillen to 3 more hospitals and 1 group practice or clinic, 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. Stefan Adrian Gillen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gillen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Morristown Medical Center | 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. Stefan Adrian Gillen is one of 11 epilepsy physicians in New Jersey
Epilepsy is Dr. Gillen's primary specialty in the NPI Registry, under taxonomy code 2084E0001X. Dr. Gillen is licensed in New Jersey.
Specialties and state licenses
- Epilepsy, New JerseyPrimary
Epilepsy physicians near Dr. Gillen
Counts of epilepsy 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. Stefan Adrian Gillen billed Medicare for 378 services in 2024
CMS data shows 378 Medicare services from Dr. Gillen across 12 procedure codes in 2024, for 200 Medicare patients. Medicare paid $32,255 for them.
Dr. Gillen's Medicare services by type, 2024
- Tests and treatments226
- Office and hospital visits152
Where Dr. Gillen's Medicare services took place, 2024
- In an office359%
- In a facility34391%
Dr. Gillen compared with the New Jersey median for epilepsy physicians, 2024
- Dr. Gillen
- New Jersey median
- Medicare services
- 378vs 59036% below
- Part D claims
- 199vs 76174% below
Medians across 11 epilepsy physicians in New Jersey with Dmand AI profiles that report each measure.
Dr. Gillen'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. Gillen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gillen and other epilepsy physicians in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stefan Adrian Gillen treated 200 Medicare patients in 2024, average age 73
CMS counts 200 Medicare patients who saw Dr. Gillen in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 1.86, 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. Gillen's median patient age at 57, with 50% women.
Dr. Gillen's Medicare patients by age, 2024
Dr. Gillen's Medicare patients by sex, 2024
- Women11457%
- Men8643%
Chronic conditions among Dr. Gillen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders53%
- Stroke or TIA52%
- Anxiety49%
- Arthritis49%
- Ischemic heart disease42%
- Depression41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gillen'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. Stefan Adrian Gillen wrote 279 Medicare Part D claims in 2024
In 2024, Dr. Gillen wrote 279 Medicare Part D claims for 46 patients. 81% of them were for generic drugs. CMS names the drug for 199 of them, across 9 drugs with 11 or more claims each, at $39,586 in total drug cost. In 2023, CMS named 126 claims across 6 drugs.
Dr. Gillen's Part D claims by kind of drug, 2024
- Generic226 claims81%
- Brand-name and other53 claims19%
Dr. Gillen'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1262024: 19958%
Drugs named by CMS: 9 in 2024, 6 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. Stefan Adrian Gillen offers telehealth to Medicare patients
Dr. Gillen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gillen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Stefan Adrian Gillen has 2 publications on record
Dmand AI links 2 papers to Dr. Gillen, published from 2018 to 2022. Dr. Gillen's most frequent co-authors are Kyle R. Marden, MD, Jesse Mitrani Thon, MD and Olga Regina Thon, MD.
Dr. Gillen's most frequent co-authors
- Kyle R. Marden, MD1 shared paper
- Jesse Mitrani Thon, MD1 shared paper
- Olga Regina Thon, MD1 shared paper
Recent publications by Dr. Gillen
See who Dr. Gillen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gillen works with, so you can find a warm path to the right epilepsy physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stefan Adrian Gillen received $871 in industry payments from 2021 to 2025
CMS Open Payments shows 32 general payments to Dr. Gillen from 14 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. UCB, Inc. paid the most, $236.
General payments to Dr. Gillen by program year, 2021 to 2025
Companies that paid Dr. Gillen the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stefan Adrian Gillen graduated from Rowan University School of Osteopathic Medicine
Dr. Gillen graduated from Rowan University School of Osteopathic Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stefan Adrian Gillen'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) |
| 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 |
| 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. Stefan Adrian Gillen
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. Stefan Adrian Gillen's NPI number?
Dr. Stefan Adrian Gillen's NPI number is 1003302670. It was assigned on July 7, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Stefan Adrian Gillen?
Dr. Stefan Adrian Gillen is an epilepsy physician in Morristown, New Jersey. The primary specialty in the NPI Registry is Epilepsy Physician (taxonomy code 2084E0001X).
Where does Dr. Stefan Adrian Gillen practice?
Dr. Gillen practices at 100 Madison Ave, Morristown, NJ 07962. Dr. Gillen's primary practice is Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System. Dmand AI also links Dr. Gillen to 3 hospitals and 1 group practice or clinic.
What is Dr. Stefan Adrian Gillen's office phone number?
The practice phone on file for Dr. Gillen is (973) 971-5450.
What is Dr. Stefan Adrian Gillen's medical license number?
Dr. Gillen holds New Jersey license 25MB11831000.
Which hospitals is Dr. Stefan Adrian Gillen affiliated with?
Dr. Gillen practices at Morristown Medical Center in Morristown, New Jersey. Dr. Gillen is also affiliated with Overlook Medical Center. Dmand AI links Dr. Gillen to 3 more hospitals.
What medical group is Dr. Stefan Adrian Gillen part of?
Dr. Gillen is linked to Atlantic Medical Group.
Does Dr. Stefan Adrian Gillen accept Medicare?
Yes. CMS data shows Dr. Gillen billed Medicare for 378 services in 2024, and Dr. Gillen accepts Medicare assignment.
Does Dr. Stefan Adrian Gillen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gillen as offering telehealth services.
How many Medicare patients does Dr. Stefan Adrian Gillen see?
CMS counts 200 Medicare patients who saw Dr. Gillen in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Stefan Adrian Gillen bill to Medicare?
In 2024, Dr. Gillen's most billed Medicare services were nerve and brain test (95816), nerve and brain test (95720) and hospital inpatient care (99231).
Where did Dr. Stefan Adrian Gillen go to medical school?
Dr. Gillen graduated from Rowan University School of Osteopathic Medicine in 2018.
What drugs does Dr. Stefan Adrian Gillen prescribe most?
In 2024 Medicare Part D data, Dr. Gillen's most prescribed drugs by claims were Levetiracetam, Depakote and Lacosamide.
Has Dr. Stefan Adrian Gillen received payments from drug or device companies?
CMS Open Payments shows $871 in general payments to Dr. Gillen from 14 companies from 2021 to 2025. The largest total came from UCB, Inc.
How long has Dr. Stefan Adrian Gillen been practicing?
Dr. Gillen graduated from medical school in 2018, 8 years ago.
Does Dr. Stefan Adrian Gillen do research?
Dmand AI links 2 publications to Dr. Gillen, published from 2018 to 2022.
Who does Dr. Stefan Adrian Gillen publish with?
Dr. Gillen's most frequent co-authors are Kyle R. Marden, MD (1 shared paper), Jesse Mitrani Thon, MD (1 shared paper) and Olga Regina Thon, MD (1 shared paper).
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