Catherine Xie, MD PHD
NPI 1780334821 · Dermatology Physician · New Haven, CT
Enrolled with Medicare as Order and Referring Only - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Xie, MD PHD is a Dermatology Physician provider in New Haven, CT (NPI 1780334821).
Provider details
- NPI number
- 1780334821
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 84117 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Triamcinolone Acetonide | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 56 Franklin StWaterbury, CT 06706-1253Phone: (203) 709-8685
Registry dates
- Enumerated
- 2022-03-23
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Catherine Xie's NPI number?
- Catherine Xie's National Provider Identifier (NPI) is 1780334821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Xie's specialty?
- Catherine Xie is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Xie located?
- Catherine Xie's practice location on file with NPPES is 20 York St, New Haven, CT 06510-3220.
- What is Catherine Xie's phone number?
- The practice phone number listed in the NPPES registry for Catherine Xie is (203) 688-4242.
- Does Catherine Xie accept Medicare?
- Catherine Xie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Xie's NPI active?
- Yes — Catherine Xie's NPI (1780334821) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.