Cassandra Blair Willison, PA-C
- Medicare patients, 2024
- 218
- MIPS score, 2024
- 83
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 27005 76th Ave, New Hyde Park, NY 11040
- Practice phone
- Call (516) 876-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Long Island Jewish Medical Center
New Hyde Park, New York
Find Cassandra Willison'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.
Cassandra Blair Willison is a physician assistant in New Hyde Park, New York
Cassandra Willison practices at Long Island Jewish Medical Center in New Hyde Park, New York.
Cassandra Willison's NPI, 1083135735, was assigned on July 3, 2017. Cassandra Willison holds Maryland license C06526.
- NPI
- 1083135735NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062788565
- NPI enumeration date
- July 3, 2017
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (516) 876-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Cassandra Blair Willison practices at Long Island Jewish Medical Center in New Hyde Park, New York
Cassandra Willison's primary practice is Long Island Jewish Medical Center, at 27005 76th Ave, New Hyde Park, NY 11040 in Nassau County. The practice phone is (516) 876-6000.
- Long Island Jewish Medical Center27005 76th Ave, New Hyde Park, NY 11040 · Nassau CountyPhone(516) 876-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Cassandra Blair Willison is affiliated with 3 sites of care and 1 medical group
Cassandra Willison's primary practice is Long Island Jewish Medical Center in New Hyde Park, New York. Cassandra Willison is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Cassandra Willison to 1 more hospital, 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 Cassandra Blair Willison's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cassandra Willison practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Long Island Jewish Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Cassandra Blair Willison is one of 11,456 physician assistants in New York
Physician assistant is Cassandra Willison's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Cassandra Willison is licensed in Maryland.
Specialties and state licenses
- Physician assistant, MarylandPrimary
Physician assistants near Cassandra Willison
Counts of physician assistants 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
Cassandra Blair Willison treated 218 Medicare patients in 2024, average age 71
CMS counts 218 Medicare patients who saw Cassandra Willison in 2024. The largest group is 65 to 74, with 109 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Cassandra Willison's median patient age at 68, with 73% women.
Cassandra Willison's Medicare patients by age, 2024
Cassandra Willison's Medicare patients by sex, 2024
- Women11553%
- Men10347%
Chronic conditions among Cassandra Willison's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes36%
- Mood disorders34%
- Cancer33%
- Chronic kidney disease32%
- Ischemic heart disease32%
Share of Medicare patients with each condition. A patient can have several.
Cassandra Willison'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
- Women73%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Cassandra Blair Willison scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Cassandra Willison for performance year 2024, reported as part of a group. CMS lists Cassandra Willison as offering telehealth.
- Offers telehealth
- Yes
Cassandra Willison's MIPS scores, performance year 2024
- 83of 100Final score
- 73.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
Sources for Cassandra Blair Willison'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 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)Clinician Public Reporting: Overall MIPS Performance (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 Cassandra Blair Willison
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Cassandra Blair Willison's NPI number?
Cassandra Blair Willison's NPI number is 1083135735. It was assigned on July 3, 2017, and it is active in the NPI Registry.
What does Cassandra Blair Willison specialize in?
Cassandra Blair Willison is a physician assistant in New Hyde Park, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Cassandra Blair Willison practice?
Cassandra Willison practices at 27005 76th Ave, New Hyde Park, NY 11040. Cassandra Willison's primary practice is Long Island Jewish Medical Center in New Hyde Park, New York. Dmand AI also links Cassandra Willison to 1 hospital.
What is Cassandra Blair Willison's office phone number?
The practice phone on file for Cassandra Willison is (516) 876-6000.
What is Cassandra Blair Willison's medical license number?
Cassandra Willison holds Maryland license C06526.
Which hospitals is Cassandra Blair Willison affiliated with?
Cassandra Willison is affiliated with The Johns Hopkins Hospital. Dmand AI links Cassandra Willison to 1 more hospital.
What medical group is Cassandra Blair Willison part of?
Cassandra Willison is linked to Johns Hopkins University.
Does Cassandra Blair Willison offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Cassandra Willison as offering telehealth services.
What is Cassandra Blair Willison's MIPS score?
Cassandra Willison's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Cassandra Blair Willison see?
CMS counts 218 Medicare patients who saw Cassandra Willison in 2024, with an average age of 71.
How long has Cassandra Blair Willison been practicing?
Cassandra Willison graduated from medical school in 2017, 9 years ago.
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