Seth Osenkarski, MSN, APRN, FNP-BC
NPI 1649819608 · Family Nurse Practitioner · Charleston, SC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seth Osenkarski, MSN, APRN, FNP-BC is a Family Nurse Practitioner provider in Charleston, SC (NPI 1649819608).
Provider details
- NPI number
- 1649819608
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, APRN, FNP-BC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 23106 (SC)
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
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
571 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 340 | $72 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 61 | $50 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 55 | $11 |
| Automated Urinalysis Test81003 | 40 | $2 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 35 | $94 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 17 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 91 | 89 |
| Ipratropium Bromide | 69 | 67 |
| Doxycycline Monohydrate | 59 | 58 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 35 | 33 |
| Azithromycin | 33 | 33 |
| Methocarbamol | 20 | 20 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 18 | 18 |
Practice location
Mailing address
Additional practice locations (1)
- 2550 Elms Center RdN Charleston, SC 29406-9844Phone: (843) 302-8840Fax: (843) 818-2188
Registry dates
- Enumerated
- 2019-12-22
- Last updated
- 2022-03-15
- Certified
- 2022-03-15
Frequently asked questions
- What is Seth Osenkarski's NPI number?
- Seth Osenkarski's National Provider Identifier (NPI) is 1649819608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Osenkarski's specialty?
- Seth Osenkarski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Seth Osenkarski located?
- Seth Osenkarski's practice location on file with NPPES is 59 George St, Charleston, SC 29401-1422.
- What is Seth Osenkarski's phone number?
- The practice phone number listed in the NPPES registry for Seth Osenkarski is (843) 720-8523.
- Does Seth Osenkarski accept Medicare?
- Seth Osenkarski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seth Osenkarski's NPI active?
- Yes — Seth Osenkarski's NPI (1649819608) is active in the NPPES registry as of the last update on 2022-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.