Kathryn Sullivan, PA-C
- Medicare patients, 2024
- 213
- Part D claims, 2024
- 558
- Hospital affiliations
- 1
- Industry payments
- $658
- Medical groups
- 2
- Practice address
- 100 Reserve Rd, Danbury, CT 06810
- Practice phone
- Call (203) 739-7742
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nuvance Health Medical Practice CT, Inc.
Danbury, Connecticut
Find Kathryn Sullivan'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.
Kathryn Sullivan is a physician assistant in Danbury, Connecticut
Kathryn Sullivan practices at Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut.
Kathryn Sullivan's NPI, 1831733799, was assigned on November 4, 2019. Kathryn Sullivan holds New York license 024377.
- NPI
- 1831733799NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002241999
- NPI enumeration date
- November 4, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 739-7742
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Kathryn Sullivan practices at Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut
Kathryn Sullivan's primary practice is Nuvance Health Medical Practice CT, Inc., at 100 Reserve Rd, Danbury, CT 06810 in Western Ct County. The practice phone is (203) 739-7742.
- Nuvance Health Medical Practice CT, Inc.100 Reserve Rd, Danbury, CT 06810 · Western Ct CountyPhone(203) 739-7742
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Kathryn Sullivan is affiliated with 4 sites of care and 2 medical groups
Kathryn Sullivan's primary practice is Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut. Kathryn Sullivan is also affiliated with Northwell Danbury Hospital. The medical group on file is Danbury Medical Group. Dmand AI also links Kathryn Sullivan to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Kathryn Sullivan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kathryn Sullivan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nuvance Health Medical Practice CT, Inc. | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Kathryn Sullivan is one of 888 physician assistants in Connecticut
Medical is Kathryn Sullivan's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Dmand AI has Kathryn Sullivan's licenses on file in 2 states: New York and Connecticut.
Specialties and state licenses
- Medical physician assistant, New YorkPrimary
- Connecticut license
Physician assistants near Kathryn Sullivan
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
Kathryn Sullivan treated 213 Medicare patients in 2024, average age 77
CMS counts 213 Medicare patients who saw Kathryn Sullivan in 2024. The largest group is 75 to 84, with 80 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Kathryn Sullivan's median patient age at 73, with 65% women.
Kathryn Sullivan's Medicare patients by age, 2024
Kathryn Sullivan's Medicare patients by sex, 2024
- Women12458%
- Men8942%
Chronic conditions among Kathryn Sullivan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer54%
- Arthritis39%
- Ischemic heart disease36%
- Anxiety33%
- Chronic kidney disease33%
- Mood disorders33%
Share of Medicare patients with each condition. A patient can have several.
Kathryn Sullivan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Kathryn Sullivan wrote 558 Medicare Part D claims in 2024
In 2024, Kathryn Sullivan wrote 558 Medicare Part D claims for 171 patients. 84% of them were for generic drugs.
Kathryn Sullivan's Part D claims by kind of drug, 2024
- Generic470 claims84%
- Brand-name88 claims16%
Drug classes CMS tracks in Kathryn Sullivan's Part D claims, 2024
- Opioids5%28 of 558 claims
- Antibiotics13%73 of 558 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Kathryn Sullivan offers telehealth to Medicare patients
Kathryn Sullivan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Kathryn Sullivan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Kathryn Sullivan received $658 in industry payments in 2025
CMS Open Payments shows 27 general payments to Kathryn Sullivan from 18 drug and device companies in 2025. Food and beverage make up the largest share, 93% of the total. Abbvie Inc. paid the most, $118.
General payments to Kathryn Sullivan by kind, 2025 to 2025
- Food and beverage$61493%
- Education$437%
Companies that paid Kathryn Sullivan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Kathryn Sullivan'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 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) |
| 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) |
| 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 Kathryn Sullivan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kathryn Sullivan's NPI number?
Kathryn Sullivan's NPI number is 1831733799. It was assigned on November 4, 2019, and it is active in the NPI Registry.
What does Kathryn Sullivan specialize in?
Kathryn Sullivan is a physician assistant in Danbury, Connecticut. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Kathryn Sullivan practice?
Kathryn Sullivan practices at 100 Reserve Rd, Danbury, CT 06810. Kathryn Sullivan's primary practice is Nuvance Health Medical Practice CT, Inc. in Danbury, Connecticut. Dmand AI also links Kathryn Sullivan to 2 group practices and clinics and 1 medical group.
What is Kathryn Sullivan's office phone number?
The practice phone on file for Kathryn Sullivan is (203) 739-7742.
What is Kathryn Sullivan's medical license number?
Kathryn Sullivan holds New York license 024377, one of the licenses on file in 2 states.
Which states has Kathryn Sullivan been licensed in?
Dmand AI has state licenses on file for Kathryn Sullivan in New York and Connecticut.
Which hospitals is Kathryn Sullivan affiliated with?
Kathryn Sullivan is affiliated with Northwell Danbury Hospital.
What medical group is Kathryn Sullivan part of?
Kathryn Sullivan is linked to Danbury Medical Group. Dmand AI links Kathryn Sullivan to 1 more medical group.
Does Kathryn Sullivan accept Medicare?
Yes. CMS lists Kathryn Sullivan as accepting Medicare assignment.
Does Kathryn Sullivan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Kathryn Sullivan as offering telehealth services.
Show 3 more questionsShow fewer questions
How many Medicare patients does Kathryn Sullivan see?
CMS counts 213 Medicare patients who saw Kathryn Sullivan in 2024, with an average age of 77.
Has Kathryn Sullivan received payments from drug or device companies?
CMS Open Payments shows $658 in general payments to Kathryn Sullivan from 18 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Kathryn Sullivan been practicing?
Kathryn Sullivan graduated from medical school in 2019, 7 years ago.
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