NPPES file of Aug 9, 2026

Seth David Osenkarski, MSN, APRN, FNP-BC

Family Nurse Practitioner · Charleston, SC

Seth David Osenkarski, MSN, APRN, FNP-BC is a family nurse practitioner with a practice address in Charleston, South Carolina, and NPI 1649819608, issued on Dec 22, 2019. Check the license (South Carolina 23106, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649819608
Name
Seth David Osenkarski
Credential
MSN, APRN, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
23106 SC
Self-reported in NPPES; status is on the state search
Practice location
4400 Dorchester RD, Charleston, SC 29405
Phone
(843) 278-8291
Enumerated
Dec 22, 2019
Record last updated
Jul 31, 2026
Fax
(843) 279-3199
Medicaid ID
NP6773 SC
Medicare enrollment
Enrolled (PECOS I20200429001281); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4400 Dorchester RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Richard McClure, RPHPharmacist1235489600
  2. Tyler Nguyen, DMDStudent in an Organized Health Care Education/Training Program1932807856

Verify Seth David Osenkarski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 23106
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Carolina license search

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59% fewer Medicare Part D claims than the average family nurse practitioner in 2024

530 Medicare Part D claims for 306 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Seth Osenkarski530
  2. Specialty average1,305

Most prescribed

  1. Prednisone91 claims
  2. Ipratropium Bromide69 claims
  3. Doxycycline Monohydrate59 claims
  4. Amoxicillin-Clavulanate Potass35 claims
  5. Azithromycin33 claims
  6. Methocarbamol20 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through 2 group practices

  1. IH Physician Services PCCanonsburg, PA
  2. Palmetto Primary Care Physicians LLCN Charleston, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Seth David Osenkarski among 4,320 family nurse practitioner records in South Carolina

Seth David Osenkarski, MSN, APRN, FNP-BC is one of 4,320 family nurse practitioner records with a practice address in South Carolina. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 54% of them.

  • NPI issued2019 · 54% of these records are older, 38% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2015 · median 2018 among the 2,643 with a school on file
  • Record last updated2026 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

320 family nurse practitioner records list a practice address in Charleston

They are 320 of the 10,840 NPPES records with a practice address in Charleston, and 4,320 family nurse practitioner records in South Carolina.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Lara Alicea, FNP-CNorth Charleston, SC 294051538624705
  2. Hannah DweikatNorth Charleston, SC 294051114515095
  3. Shannon Gainey, FNPNorth Charleston, SC 294051780914051
  4. Ann Hassell, MSN, FNP-BCNorth Charleston, SC 294051487373536
  5. Lori Infinger, FNPNorth Charleston, SC 294051245233444
  6. Suzan Kleckley, ANPNorth Charleston, SC 294051649247685
  7. Gretchen Overstolz, FNPNorth Charleston, SC 294051215291067
  8. Caitlin Paris, FNP-CNorth Charleston, SC 294051245995067

Common questions

What is Seth David Osenkarski, MSN, APRN, FNP-BC's NPI number?

Seth David Osenkarski, MSN, APRN, FNP-BC's National Provider Identifier (NPI) is 1649819608, issued on Dec 22, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Seth David Osenkarski, MSN, APRN, FNP-BC located?

The NPPES record lists a practice address at 4400 Dorchester RD, Charleston, SC, 29405. Phone: (843) 278-8291. Providers update this record themselves, so call before visiting.

How can I verify Seth David Osenkarski, MSN, APRN, FNP-BC's license?

NPPES lists South Carolina license number 23106, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Seth David Osenkarski, MSN, APRN, FNP-BC prescribe under Medicare Part D?

In 2024, Seth David Osenkarski, MSN, APRN, FNP-BC had 530 Medicare Part D claims for 306 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.