Dr. William Andrew Arthur Karalis, DO
- Part D claims, 2024
- 29
- Hospital affiliations
- 2
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 300 Community Drive, Manhasset, NY 11030
- Practice phone
- Call (516) 562-0100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karalis' 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. William Andrew Arthur Karalis is an emergency medicine physician in Manhasset, New York
Dr. Karalis practices at North Shore University Hospital in Manhasset, New York, part of Northwell Health.
Dr. Karalis' NPI, 1891435731, was assigned on March 30, 2022. Dr. Karalis graduated from University of New England, College of Osteo Medicine in 2022. Dr. Karalis holds New York license 335875.
- NPI
- 1891435731NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577065192
- NPI enumeration date
- March 30, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (516) 562-0100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Andrew Arthur Karalis practices at North Shore University Hospital in Manhasset, New York
Dr. Karalis' primary practice is North Shore University Hospital, at 300 Community Drive, Manhasset, NY 11030 in Nassau County. The practice phone is (516) 562-0100.
- North Shore University Hospital300 Community Drive, Manhasset, NY 11030 · Nassau CountyPhone(516) 562-0100
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Andrew Arthur Karalis is affiliated with 2 sites of care and 3 medical groups
Dr. Karalis' primary practice is North Shore University Hospital in Manhasset, New York, part of Northwell Health. Dr. Karalis is also affiliated with Cape Cod Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Karalis to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Andrew Arthur Karalis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karalis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Shore University Hospital | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Andrew Arthur Karalis is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Karalis' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Karalis is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Karalis
Counts of emergency medicine 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. William Andrew Arthur Karalis' patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Dr. Karalis' median patient age at 39, with 55% women.
Dr. Karalis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. William Andrew Arthur Karalis wrote 29 Medicare Part D claims in 2024
In 2024, Dr. Karalis wrote 29 Medicare Part D claims for 24 patients. 93% of them were for generic drugs.
Dr. Karalis' Part D claims by kind of drug, 2024
- Generic27 claims93%
- Brand-name and other2 claims7%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. William Andrew Arthur Karalis takes part in Medicare
Dr. Karalis 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. William Andrew Arthur Karalis graduated from University of New England, College of Osteo Medicine
Dr. Karalis graduated from University of New England, College of Osteo Medicine in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Andrew Arthur Karalis'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 (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) |
| 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. William Andrew Arthur Karalis
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. William Andrew Arthur Karalis' NPI number?
Dr. William Andrew Arthur Karalis' NPI number is 1891435731. It was assigned on March 30, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. William Andrew Arthur Karalis?
Dr. William Andrew Arthur Karalis is an emergency medicine physician in Manhasset, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. William Andrew Arthur Karalis practice?
Dr. Karalis practices at 300 Community Drive, Manhasset, NY 11030. Dr. Karalis' primary practice is North Shore University Hospital in Manhasset, New York, part of Northwell Health. Dmand AI also links Dr. Karalis to 2 medical groups.
What is Dr. William Andrew Arthur Karalis' office phone number?
The practice phone on file for Dr. Karalis is (516) 562-0100.
What is Dr. William Andrew Arthur Karalis' medical license number?
Dr. Karalis holds New York license 335875.
Which hospitals is Dr. William Andrew Arthur Karalis affiliated with?
Dr. Karalis practices at North Shore University Hospital in Manhasset, New York. Dr. Karalis is also affiliated with Cape Cod Hospital.
What medical group is Dr. William Andrew Arthur Karalis part of?
Dr. Karalis is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Karalis to 2 more medical groups.
Does Dr. William Andrew Arthur Karalis accept Medicare?
Yes. CMS lists Dr. Karalis as accepting Medicare assignment.
Where did Dr. William Andrew Arthur Karalis go to medical school?
Dr. Karalis graduated from University of New England, College of Osteo Medicine in 2022.
How long has Dr. William Andrew Arthur Karalis been practicing?
Dr. Karalis graduated from medical school in 2022, 4 years ago.
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