Catherine Zillmann, NPP
NPI 1326052333 · Psychiatric/Mental Health Nurse Practitioner · Smithtown, NY
Catherine Zillmann, NPP is a Psychiatric/Mental Health Nurse Practitioner provider in Smithtown, NY (NPI 1326052333).
Provider details
- NPI number
- 1326052333
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NPP
- Sex
- Female
- Sole proprietor
- Yes
- License
- F400964-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 35 |
| Clonazepam | 15 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 14 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphet Er | 13 |
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
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2018-02-14
Frequently asked questions
- What is Catherine Zillmann's NPI number?
- Catherine Zillmann's National Provider Identifier (NPI) is 1326052333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Zillmann's specialty?
- Catherine Zillmann is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Zillmann located?
- Catherine Zillmann's practice location on file with NPPES is 363 Route 111 Ste 103, Smithtown, NY 11787-4750.
- What is Catherine Zillmann's phone number?
- The practice phone number listed in the NPPES registry for Catherine Zillmann is (631) 864-9202.
- Is Catherine Zillmann's NPI active?
- Yes — Catherine Zillmann's NPI (1326052333) is active in the NPPES registry as of the last update on 2018-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.