Dr. Irwin J. Hollander, MD
- Medicare services, 2024
- 2,872
- Medicare patients, 2024
- 991
- Part D claims, 2024
- 86
- Hospital affiliations
- 5
- Industry payments
- $33
- Practice address
- 801 Ostrum St, Bethlehem, PA 18015
- Practice phone
- Call (484) 526-4558
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Lukes University Hospital Bethlehem
Bethlehem, Pennsylvania
Find Dr. Hollander'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. Irwin J. Hollander is a pathologist in Bethlehem, Pennsylvania
Dr. Hollander practices at St Lukes University Hospital Bethlehem in Bethlehem, Pennsylvania.
Dr. Hollander's NPI, 1003966391, was assigned on January 11, 2007. Dr. Hollander holds Pennsylvania license MD014407E.
- NPI
- 1003966391NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375718968
- NPI enumeration date
- January 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (484) 526-4558
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Irwin J. Hollander practices at St Lukes University Hospital Bethlehem in Bethlehem, Pennsylvania
Dr. Hollander's primary practice is St Lukes University Hospital Bethlehem, at 801 Ostrum St, Bethlehem, PA 18015 in Northampton County. The practice phone is (484) 526-4558.
- St Lukes University Hospital Bethlehem801 Ostrum St, Bethlehem, PA 18015 · Northampton CountyPhone(484) 526-4558
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Irwin J. Hollander is affiliated with 6 sites of care and 3 medical groups
Dr. Hollander's primary practice is St Lukes University Hospital Bethlehem in Bethlehem, Pennsylvania. Dr. Hollander is also affiliated with St. Luke's University Hospital - Bethlehem Campus. The medical group on file is St. Luke's South Mountain Family Practice. Dmand AI also links Dr. Hollander to 4 more hospitals and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Irwin J. Hollander's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hollander practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Lukes University Hospital Bethlehem | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Irwin J. Hollander is one of 428 pathologists in Pennsylvania
Anatomic pathology and clinical pathology is Dr. Hollander's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Hollander is licensed in Pennsylvania.
Specialties and state licenses
- Anatomic pathology and clinical pathology, PennsylvaniaPrimary
Pathologists near Dr. Hollander
Counts of pathologists 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. Irwin J. Hollander billed Medicare for 2,872 services in 2024
CMS data shows 2,872 Medicare services from Dr. Hollander across 17 procedure codes in 2024, for 991 Medicare patients. Medicare paid $87,854 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hollander's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,4412024: 2,87218%
Dr. Hollander compared with the Pennsylvania median for pathologists, 2024
- Dr. Hollander
- Pennsylvania median
- Medicare services
- 2,872vs 1,3002.2 times
- Medicare patients
- 991vs 53984% above
- Part D claims
- 60vs 125.0 times
Medians across 464 pathologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Hollander'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. Irwin J. Hollander treated 991 Medicare patients in 2024, average age 75
CMS counts 991 Medicare patients who saw Dr. Hollander in 2024. The largest group is 65 to 74, with 433 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.79, 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. Hollander's median patient age at 68, with 51% women.
Dr. Hollander's Medicare patients by age, 2024
Dr. Hollander's Medicare patients by sex, 2024
- Women57858%
- Men41342%
Chronic conditions among Dr. Hollander's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Chronic kidney disease36%
- Diabetes35%
- Ischemic heart disease35%
- Mood disorders34%
- Cancer32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hollander's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Irwin J. Hollander wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Hollander wrote 86 Medicare Part D claims. 99% of them were for generic drugs. CMS names the drug for 60 of them, across 5 drugs with 11 or more claims each, at $787 in total drug cost. In 2023, CMS named 39 claims across 3 drugs.
Dr. Hollander's Part D claims by kind of drug, 2024
- Generic85 claims99%
- Brand-name and other1 claims1%
Dr. Hollander'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. Hollander's Part D claims, 2024
- Antipsychotics, patients 65 and over14%12 of 86 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: 392024: 6054%
Drugs named by CMS: 5 in 2024, 3 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. Irwin J. Hollander takes part in Medicare
Dr. Hollander 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. Irwin J. Hollander received $33 in industry payments from 2016 to 2018
CMS Open Payments shows 2 general payments to Dr. Hollander from 2 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $17.
General payments to Dr. Hollander by program year, 2016 to 2018
Companies that paid Dr. Hollander the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Irwin J. Hollander'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Irwin J. Hollander
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. Irwin J. Hollander's NPI number?
Dr. Irwin J. Hollander's NPI number is 1003966391. It was assigned on January 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Irwin J. Hollander?
Dr. Irwin J. Hollander is a pathologist in Bethlehem, Pennsylvania. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Irwin J. Hollander practice?
Dr. Hollander practices at 801 Ostrum St, Bethlehem, PA 18015. Dr. Hollander's primary practice is St Lukes University Hospital Bethlehem in Bethlehem, Pennsylvania. Dmand AI also links Dr. Hollander to 4 hospitals and 2 medical groups.
What is Dr. Irwin J. Hollander's office phone number?
The practice phone on file for Dr. Hollander is (484) 526-4558.
What is Dr. Irwin J. Hollander's medical license number?
Dr. Hollander holds Pennsylvania license MD014407E.
Which hospitals is Dr. Irwin J. Hollander affiliated with?
Dr. Hollander is affiliated with St. Luke's University Hospital - Bethlehem Campus. Dmand AI links Dr. Hollander to 4 more hospitals.
What medical group is Dr. Irwin J. Hollander part of?
Dr. Hollander is linked to St. Luke's South Mountain Family Practice. Dmand AI links Dr. Hollander to 2 more medical groups.
Does Dr. Irwin J. Hollander accept Medicare?
Yes. CMS data shows Dr. Hollander billed Medicare for 2,872 services in 2024, and Dr. Hollander accepts Medicare assignment.
How many Medicare patients does Dr. Irwin J. Hollander see?
CMS counts 991 Medicare patients who saw Dr. Hollander in 2024, with an average age of 75.
What services does Dr. Irwin J. Hollander bill to Medicare?
In 2024, Dr. Hollander's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88307) and lab and pathology test (88341).
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What drugs does Dr. Irwin J. Hollander prescribe most?
In 2024 Medicare Part D data, Dr. Hollander's most prescribed drugs by claims were Lorazepam, Naltrexone HCl and Risperidone.
Has Dr. Irwin J. Hollander received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. Hollander from 2 companies from 2016 to 2018. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Irwin J. Hollander been practicing?
Dr. Hollander graduated from medical school in 1972, 54 years ago.
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