Susan Nifenecker, NPP
NPI 1144233420 · Psychiatric/Mental Health Nurse Practitioner · Seaford, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Nifenecker, NPP is a Psychiatric/Mental Health Nurse Practitioner provider in Seaford, NY (NPI 1144233420).
Provider details
- NPI number
- 1144233420
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NPP
- Sex
- Female
- Sole proprietor
- Yes
- License
- F400714-1 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,415 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 812 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 398 | $53 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 190 | $72 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 15 | $176 |
Typical Medicare-allowed amounts for these services range $53–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clozapine | 402 | 27 |
| Benztropine Mesylate | 343 | 42 |
| Risperidone | 337 | 39 |
| Olanzapine | 310 | 24 |
| Quetiapine Fumarate | 241 | 28 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 197 | 20 |
| Clonazepam | 170 | 15 |
| Fluoxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-15
- Last updated
- 2015-08-03
Frequently asked questions
- What is Susan Nifenecker's NPI number?
- Susan Nifenecker's National Provider Identifier (NPI) is 1144233420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Nifenecker's specialty?
- Susan Nifenecker is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Susan Nifenecker located?
- Susan Nifenecker's practice location on file with NPPES is 2146 Jackson Ave, Seaford, NY 11783-2606.
- What is Susan Nifenecker's phone number?
- The practice phone number listed in the NPPES registry for Susan Nifenecker is (516) 221-3030.
- Does Susan Nifenecker accept Medicare?
- Susan Nifenecker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Nifenecker's NPI active?
- Yes — Susan Nifenecker's NPI (1144233420) is active in the NPPES registry as of the last update on 2015-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.