Sydney Seyfert, NP
NPI 1821394974 · Psychiatric/Mental Health Nurse Practitioner · Missoula, MT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sydney Seyfert, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Missoula, MT (NPI 1821394974).
Provider details
- NPI number
- 1821394974
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP60202570 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Escitalopram Oxalate | 27 |
| Lamotrigine | 27 |
| Gabapentin | 25 |
| Haloperidol Decanoate | 25 |
| Zolpidem Tartrate | 17 |
| Olanzapine | 14 |
| Pantoprazole Sodium | 14 |
| Simvastatin | 14 |
| Trazodone Hcl | 14 |
| Aripiprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-02-08
- Last updated
- 2020-04-22
- Certified
- 2020-04-22
Frequently asked questions
- What is Sydney Seyfert's NPI number?
- Sydney Seyfert's National Provider Identifier (NPI) is 1821394974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Seyfert's specialty?
- Sydney Seyfert is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sydney Seyfert located?
- Sydney Seyfert's practice location on file with NPPES is 821 S Orange St, Missoula, MT 59801-3833.
- What is Sydney Seyfert's phone number?
- The practice phone number listed in the NPPES registry for Sydney Seyfert is (406) 540-3556.
- Does Sydney Seyfert accept Medicare?
- Sydney Seyfert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sydney Seyfert's NPI active?
- Yes — Sydney Seyfert's NPI (1821394974) is active in the NPPES registry as of the last update on 2020-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.