Denise Ythier, PA
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 318
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Industry payments
- $371
- Practice address
- 100 Woods Rd, Valhalla, NY 10595
- Practice phone
- Call (914) 493-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Denise Ythier'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.
Denise Ythier is a physician assistant in Valhalla, New York
Denise Ythier practices at Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network.
Denise Ythier's NPI, 1023018702, was assigned on July 26, 2005. Denise Ythier holds New York license 003280.
- NPI
- 1023018702NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325180102
- NPI enumeration date
- July 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (914) 493-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Denise Ythier practices at Westchester Medical Center in Valhalla, New York
Denise Ythier's primary practice is Westchester Medical Center, at 100 Woods Rd, Valhalla, NY 10595 in Westchester County. The practice phone is (914) 493-7000.
- Westchester Medical Center100 Woods Rd, Valhalla, NY 10595 · Westchester CountyPhone(914) 493-7000
Source: Dmand AI Affiliation Data
Denise Ythier is affiliated with 2 sites of care and 2 medical groups
Denise Ythier's primary practice is Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network. The medical group on file is Westchester Medical Center Advanced Physician Services. Dmand AI also links Denise Ythier to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Denise Ythier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Denise Ythier practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Westchester Medical Center | Available with a free account |
| +1 more site and 1 medical group | 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 Westchester Medical Center Health Network and 6.2K+ hospitals, with verified contacts in the same login.
Denise Ythier is one of 11,456 physician assistants in New York
Physician assistant is Denise Ythier's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Denise Ythier is board certified in 1987 - 2028 by the NY State PA License. Denise Ythier is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Physician assistants near Denise Ythier
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
Denise Ythier treated 12 Medicare patients in 2024, average age 75
CMS counts 12 Medicare patients who saw Denise Ythier in 2024. The largest group is under 65, with 0 patients. 75% of them have high cholesterol. Their average risk score is 0.86, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Denise Ythier's median patient age at 56, with 60% women.
Denise Ythier's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Denise Ythier's Medicare patients, 2024
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Denise Ythier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women60%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Denise Ythier wrote 318 Medicare Part D claims in 2024
In 2024, Denise Ythier wrote 318 Medicare Part D claims for 155 patients. 64% of them were for generic drugs. CMS names the drug for 171 of them, across 8 drugs with 11 or more claims each, at $44,531 in total drug cost.
Denise Ythier's Part D claims by kind of drug, 2024
- Generic204 claims64%
- Brand-name114 claims36%
Denise Ythier'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 Denise Ythier's Part D claims, 2024
- Antibiotics13%40 of 318 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Denise Ythier scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Denise Ythier for performance year 2024, reported as part of a group. Denise Ythier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Denise Ythier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Denise Ythier received $371 in industry payments in 2025
CMS Open Payments shows 8 general payments to Denise Ythier from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $288.
Companies that paid Denise Ythier the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Denise Ythier is board certified in 1987 - 2028
- Board certified in 1987 - 2028
Source: Dmand AI Professional Profile Data
Sources for Denise Ythier'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 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)Clinician Public Reporting: Overall MIPS Performance (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 Denise Ythier
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Denise Ythier's NPI number?
Denise Ythier's NPI number is 1023018702. It was assigned on July 26, 2005, and it is active in the NPI Registry.
What does Denise Ythier specialize in?
Denise Ythier is a physician assistant in Valhalla, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Denise Ythier practice?
Denise Ythier practices at 100 Woods Rd, Valhalla, NY 10595. Denise Ythier's primary practice is Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network. Dmand AI also links Denise Ythier to 1 group practice or clinic and 1 medical group.
What is Denise Ythier's office phone number?
The practice phone on file for Denise Ythier is (914) 493-7000.
What is Denise Ythier's medical license number?
Denise Ythier holds New York license 003280.
Which hospitals is Denise Ythier affiliated with?
Denise Ythier practices at Westchester Medical Center in Valhalla, New York.
What medical group is Denise Ythier part of?
Denise Ythier is linked to Westchester Medical Center Advanced Physician Services. Dmand AI links Denise Ythier to 1 more medical group.
Does Denise Ythier accept Medicare?
Yes. CMS lists Denise Ythier as accepting Medicare assignment.
Does Denise Ythier offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Denise Ythier as offering telehealth services.
What is Denise Ythier's MIPS score?
Denise Ythier's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
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How many Medicare patients does Denise Ythier see?
CMS counts 12 Medicare patients who saw Denise Ythier in 2024, with an average age of 75.
Is Denise Ythier board certified?
Yes. Denise Ythier is board certified in 1987 - 2028 by the NY State PA License.
What drugs does Denise Ythier prescribe most?
In 2024 Medicare Part D data, Denise Ythier's most prescribed drugs by claims were Gavilyte-G, Linzess and Famotidine.
Has Denise Ythier received payments from drug or device companies?
CMS Open Payments shows $371 in general payments to Denise Ythier from 4 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Denise Ythier been practicing?
Denise Ythier graduated from medical school in 1987, 39 years ago.
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