Dr. Henry Herman Janssen Jr., MD
- Medicare services, 2024
- 49,758
- Medicare patients, 2024
- 6,124
- Industry payments
- $136
- Affiliated sites
- 6
- Medical groups
- 5
- Practice address
- 150 East Sunrise Hwy., Lindenhurst, NY 11757
- Practice phone
- Call (631) 444-5544
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Zwanger-Pesiri Radiology - Lindenhurst
Mammography / Breast Imaging Center · Lindenhurst, New York
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. Henry Herman Janssen Jr. is a diagnostic radiologist in Lindenhurst, New York
Dr. Janssen practices at Zwanger-Pesiri Radiology - Lindenhurst in Lindenhurst, New York.
Dr. Janssen's NPI, 1053371765, was assigned on March 25, 2006. Dr. Janssen graduated from University of Florida College of Medicine in 1994. Dr. Janssen holds Connecticut license 037751.
- NPI
- 1053371765NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779634902
- NPI enumeration date
- March 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 444-5544
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Henry Herman Janssen Jr. practices at Zwanger-Pesiri Radiology - Lindenhurst in Lindenhurst, New York
Dr. Janssen's primary practice is Zwanger-Pesiri Radiology - Lindenhurst, at 150 East Sunrise Hwy., Lindenhurst, NY 11757. The practice phone is (631) 444-5544.
- Zwanger-Pesiri Radiology - Lindenhurst150 East Sunrise Hwy., Lindenhurst, NY 11757Phone(631) 444-5544
Source: Dmand AI Affiliation Data
Dr. Henry Herman Janssen Jr. is affiliated with 6 sites of care and 5 medical groups
Dr. Janssen's primary practice is Zwanger-Pesiri Radiology - Lindenhurst in Lindenhurst, New York. The medical group on file is CareMount Medical. Dmand AI also links Dr. Janssen to 5 more group practices and clinics and 4 medical groups, each named with a free account. Dr. Janssen's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Henry Herman Janssen Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Janssen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Zwanger-Pesiri Radiology - Lindenhurst | Available with a free account |
| +5 more sites and 4 medical groups | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Henry Herman Janssen Jr. is one of 2,697 diagnostic radiologists in New York
Diagnostic radiology is Dr. Janssen's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Janssen is licensed in Connecticut.
Specialties and state licenses
- Diagnostic radiology, ConnecticutPrimary
Diagnostic radiologists near Dr. Janssen
Counts of diagnostic radiologists 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. Henry Herman Janssen Jr. billed Medicare for 49,758 services in 2024
CMS data shows 49,758 Medicare services from Dr. Janssen across 60 procedure codes in 2024, for 6,124 Medicare patients. Medicare paid $936,594 for them. Every service was in an office.
Dr. Janssen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 24,8262024: 33,59035%
- Imaging
- 2023: 11,7992024: 16,16837%
- Drugs given in the office
- 2023: 842024: 0100%
- Tests and treatments
- 2023: 132024: 0100%
- Surgery
- 2023: 112024: 0100%
Dr. Janssen compared with the New York median for diagnostic radiologists, 2024
- Dr. Janssen
- New York median
- Medicare services
- 49,758vs 2,41420.6 times
- Medicare patients
- 6,124vs 1,1595.3 times
Medians across 2,610 diagnostic radiologists in New York with Dmand AI profiles that report each measure.
Dr. Janssen'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. Janssen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Janssen and other diagnostic radiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Henry Herman Janssen Jr. treated 6,124 Medicare patients in 2024, average age 74
CMS counts 6,124 Medicare patients who saw Dr. Janssen in 2024. The largest group is 65 to 74, with 2,936 patients. 75% of them have arthritis, and 75% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Janssen's median patient age at 71, with 59% women.
Dr. Janssen's Medicare patients by age, 2024
Dr. Janssen's Medicare patients by sex, 2024
- Women3,76762%
- Men2,35738%
Chronic conditions among Dr. Janssen's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease37%
- Diabetes35%
- Anxiety29%
- Osteoporosis23%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
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 71
Patient panel by sex, all payers
- Women59%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Henry Herman Janssen Jr. takes part in Medicare
Dr. Janssen 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Henry Herman Janssen Jr. received $136 in industry payments from 2017 to 2022
CMS Open Payments shows 2 general payments to Dr. Janssen from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $120.
General payments to Dr. Janssen by program year, 2017 to 2022
Companies that paid Dr. Janssen the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Henry Herman Janssen Jr. graduated from University of Florida College of Medicine
Dr. Janssen graduated from University of Florida College of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Henry Herman Janssen Jr.'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) |
| 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. Henry Herman Janssen Jr.
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. Henry Herman Janssen Jr.'s NPI number?
Dr. Henry Herman Janssen Jr.'s NPI number is 1053371765. It was assigned on March 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Henry Herman Janssen Jr.?
Dr. Henry Herman Janssen Jr. is a diagnostic radiologist in Lindenhurst, New York. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Henry Herman Janssen Jr. practice?
Dr. Janssen practices at 150 East Sunrise Hwy., Lindenhurst, NY 11757. Dr. Janssen's primary practice is Zwanger-Pesiri Radiology - Lindenhurst in Lindenhurst, New York. Dmand AI also links Dr. Janssen to 5 group practices and clinics and 4 medical groups.
What is Dr. Henry Herman Janssen Jr.'s office phone number?
The practice phone on file for Dr. Janssen is (631) 444-5544.
What is Dr. Henry Herman Janssen Jr.'s medical license number?
Dr. Janssen holds Connecticut license 037751.
What medical group is Dr. Henry Herman Janssen Jr. part of?
Dr. Janssen is linked to CareMount Medical. Dmand AI links Dr. Janssen to 4 more medical groups.
Does Dr. Henry Herman Janssen Jr. accept Medicare?
Yes. CMS data shows Dr. Janssen billed Medicare for 49,758 services in 2024, and Dr. Janssen accepts Medicare assignment.
How many Medicare patients does Dr. Henry Herman Janssen Jr. see?
CMS counts 6,124 Medicare patients who saw Dr. Janssen in 2024, with an average age of 74.
What services does Dr. Henry Herman Janssen Jr. bill to Medicare?
In 2024, Dr. Janssen's most billed Medicare services were medical supplies or transport (A9575), diagnostic imaging (73721) and diagnostic imaging (73221).
Where did Dr. Henry Herman Janssen Jr. go to medical school?
Dr. Janssen graduated from University of Florida College of Medicine in 1994.
Has Dr. Henry Herman Janssen Jr. received payments from drug or device companies?
CMS Open Payments shows $136 in general payments to Dr. Janssen from 2 companies from 2017 to 2022. The largest total came from Gilead Sciences, Inc.
How long has Dr. Henry Herman Janssen Jr. been practicing?
Dr. Janssen graduated from medical school in 1994, 32 years ago.
Selling to diagnostic radiology practices?
See diagnostic radiologists in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card