Cheryl L. Irwin, FNP
Family Nurse Practitioner · Charleston, SC
Cheryl L. Irwin, FNP is a family nurse practitioner with a practice address in Charleston, South Carolina, and NPI 1821336793, issued on Jan 28, 2013. Check the license (South Carolina 18133, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cheryl L. Irwin
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 18133 SC
Self-reported in NPPES; status is on the state search - Practice location
- 319 Folly RD, Charleston, SC 29412
- Phone
- (843) 203-2246
- Enumerated
- Jan 28, 2013
- Record last updated
- Jul 23, 2026
- Fax
- (843) 203-2247
- Medicaid ID
- NP2218 SC
- Medicare enrollment
- Enrolled (PECOS I20130221000245); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,320 in South Carolina → Look up another NPI →
Also registered at 319 Folly RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cheryl L. Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 18133Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average family nurse practitioner in 2024
451 Medicare Part D claims for 311 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Methylprednisolone90 claims
- Cephalexin53 claims
- Azithromycin51 claims
- Amoxicillin-Clavulanate Potass29 claims
- Mupirocin25 claims
- Paxlovid18 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 one group practice
- Roper Saint Francis Physicians NetworkNorth Charleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cheryl L. Irwin among 4,320 family nurse practitioner records in South Carolina
Cheryl L. Irwin, FNP 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 2013, is newer than 22% of them.
- NPI issued2013 · 22% of these records are older, 75% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2012 · 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.
All 4,320 in South Carolina → Every provider in Charleston → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Kristin Anderson, NP-CCharleston, SC 294121003568775
- Simone Chinnis, DNP, FNP, AE-CCharleston, SC 294121174047518
- Ashley Ehlers-Isenhower, FNPCharleston, SC 294121568131050
- Jennifer Gardner, FNPCharleston, SC 294121417192444
- Laura Hill, CRNPCharleston, SC 294121710438106
- Brigitte Huttemeyer, DNP, APRN, FNP-CCharleston, SC 294121437795747
- Devon Licari, ARNP, FNPCharleston, SC 294121083038723
- Katherine Madden, NPCharleston, SC 294121861843997
Common questions
What is Cheryl L. Irwin, FNP's NPI number?
Cheryl L. Irwin, FNP's National Provider Identifier (NPI) is 1821336793, issued on Jan 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Cheryl L. Irwin, FNP located?
The NPPES record lists a practice address at 319 Folly RD, Charleston, SC, 29412. Phone: (843) 203-2246. Providers update this record themselves, so call before visiting.
How can I verify Cheryl L. Irwin, FNP's license?
NPPES lists South Carolina license number 18133, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.
How much does Cheryl L. Irwin, FNP prescribe under Medicare Part D?
In 2024, Cheryl L. Irwin, FNP had 451 Medicare Part D claims for 311 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.