Dr. Pierce Janssen, MD
- Part D claims, 2024
- 43
- Hospital affiliations
- 2
- Industry payments
- $1,548
- Medical groups
- 2
- State licenses
- 2
- 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. Janssen'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. Pierce Janssen is a plastic surgeon in Morristown, New Jersey
Dr. Janssen practices at Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System.
Dr. Janssen's NPI, 1831695279, was assigned on April 4, 2018. Dr. Janssen graduated from Stony Brook University Health Sciences Center School of Medicine in 2018. Dr. Janssen holds Ohio license 35.150669.
- NPI
- 1831695279NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032455738
- NPI enumeration date
- April 4, 2018
- NPI status
- Active
- Accepts Medicare assignment
- 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. Pierce Janssen practices at Morristown Medical Center in Morristown, New Jersey
Dr. Janssen'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. Pierce Janssen is affiliated with 3 sites of care and 2 medical groups
Dr. Janssen's primary practice is Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System. Dr. Janssen is also affiliated with Saint Clare's Denville Hospital. The medical group on file is Cleveland Clinic. Dmand AI also links Dr. Janssen to 1 more ambulatory surgery center 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. Pierce Janssen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Janssen practices, 3 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 |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Atlantic Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Pierce Janssen is one of 181 plastic surgeons in New Jersey
Plastic surgery is Dr. Janssen's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dmand AI has Dr. Janssen's licenses on file in 2 states: Ohio and New York.
Specialties and state licenses
- Plastic surgery, OhioPrimary
- Student in an organized health care education/training program, New York
Plastic surgeons near Dr. Janssen
Counts of plastic 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. Pierce Janssen's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts Dr. Janssen's median patient age at 53, with 90% women.
Dr. Janssen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women90%
- Men10%
Source: Dmand AI Patient Panel Data
Dr. Pierce Janssen wrote 43 Medicare Part D claims in 2024
In 2024, Dr. Janssen wrote 43 Medicare Part D claims for 23 patients. 100% of them were for generic drugs. CMS names the drug for 36 of them, across 2 drugs with 11 or more claims each, at $121 in total drug cost.
Dr. Janssen'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. Janssen's Part D claims, 2024
- Opioids56%24 of 43 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Pierce Janssen takes part in Medicare
Dr. Janssen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
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)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Pierce Janssen received $1,548 in industry payments from 2024 to 2025
CMS Open Payments shows 21 general payments to Dr. Janssen from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Integra LifeSciences Corporation paid the most, $806.
General payments to Dr. Janssen by program year, 2024 to 2025
Companies that paid Dr. Janssen the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Pierce Janssen graduated from Stony Brook University Health Sciences Center School of Medicine
Dr. Janssen graduated from Stony Brook University Health Sciences Center School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Pierce Janssen'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 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)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. Pierce Janssen
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. Pierce Janssen's NPI number?
Dr. Pierce Janssen's NPI number is 1831695279. It was assigned on April 4, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Pierce Janssen?
Dr. Pierce Janssen is a plastic surgeon in Morristown, New Jersey. The primary specialty in the NPI Registry is Plastic Surgery Physician (taxonomy code 208200000X).
Where does Dr. Pierce Janssen practice?
Dr. Janssen practices at 100 Madison Ave, Morristown, NJ 07962. Dr. Janssen's primary practice is Morristown Medical Center in Morristown, New Jersey, part of Atlantic Health System. Dmand AI also links Dr. Janssen to 1 ambulatory surgery center and 1 medical group.
What is Dr. Pierce Janssen's office phone number?
The practice phone on file for Dr. Janssen is (973) 971-5450.
What is Dr. Pierce Janssen's medical license number?
Dr. Janssen holds Ohio license 35.150669, one of the licenses on file in 2 states.
Which states has Dr. Pierce Janssen been licensed in?
Dmand AI has state licenses on file for Dr. Janssen in Ohio and New York.
Which hospitals is Dr. Pierce Janssen affiliated with?
Dr. Janssen practices at Morristown Medical Center in Morristown, New Jersey. Dr. Janssen is also affiliated with Saint Clare's Denville Hospital.
What medical group is Dr. Pierce Janssen part of?
Dr. Janssen is linked to Cleveland Clinic. Dmand AI links Dr. Janssen to 1 more medical group.
Does Dr. Pierce Janssen accept Medicare?
Yes. CMS lists Dr. Janssen as accepting Medicare assignment.
Where did Dr. Pierce Janssen go to medical school?
Dr. Janssen graduated from Stony Brook University Health Sciences Center School of Medicine in 2018.
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What drugs does Dr. Pierce Janssen prescribe most?
In 2024 Medicare Part D data, Dr. Janssen's most prescribed drugs by claims were Oxycodone HCl and Ondansetron HCl.
Has Dr. Pierce Janssen received payments from drug or device companies?
CMS Open Payments shows $1,548 in general payments to Dr. Janssen from 8 companies from 2024 to 2025. The largest total came from Integra LifeSciences Corporation.
How long has Dr. Pierce Janssen been practicing?
Dr. Janssen graduated from medical school in 2018, 8 years ago.
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