Sonya Isler, NP
NPI 1336628957 · Psychiatric/Mental Health Nurse Practitioner · Fredericksburg, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonya Isler, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Fredericksburg, VA (NPI 1336628957).
Provider details
- NPI number
- 1336628957
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 5010844 (NC)
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 tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clonazepam | 55 |
| Lamotrigine | 41 |
| Aripiprazole | 30 |
| Buspirone Hcl | 28 |
| Quetiapine Fumarate | 23 |
| Alprazolam | 20 |
| Fluoxetine Hcl | 20 |
| Sertraline Hcl | 20 |
| Lorazepam | 18 |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$213 across 10 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
Additional practice locations (2)
- 66 E Main St Fl 3303Westminster, MD 21157-5008Phone: (833) 351-8255
- 109 W 27th St Rm 5sNew York, NY 10001-6208Phone: (833) 351-8255
Registry dates
- Enumerated
- 2018-08-14
- Last updated
- 2025-10-13
- Certified
- 2025-10-13
Frequently asked questions
- What is Sonya Isler's NPI number?
- Sonya Isler's National Provider Identifier (NPI) is 1336628957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonya Isler's specialty?
- Sonya Isler is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sonya Isler located?
- Sonya Isler's practice location on file with NPPES is 150 Riverside Pkwy Ste 115, Fredericksburg, VA 22406-1094.
- What is Sonya Isler's phone number?
- The practice phone number listed in the NPPES registry for Sonya Isler is (833) 351-8255.
- Does Sonya Isler accept Medicare?
- Sonya Isler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonya Isler's NPI active?
- Yes — Sonya Isler's NPI (1336628957) is active in the NPPES registry as of the last update on 2025-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.