Cheryl Irwin, FNP
NPI 1821336793 · Family Nurse Practitioner · Charleston, SC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cheryl Irwin, FNP is a Family Nurse Practitioner provider in Charleston, SC (NPI 1821336793).
Provider details
- NPI number
- 1821336793
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 18133 (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
13 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
660 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 | 282 | $73 |
| X-Ray of Chest, 2 Views71046 | 61 | $22 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 60 | $102 |
| Automated Urinalysis Test81003 | 52 | $2 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19) and Influenza Virus Types a and B87636 | 38 | $140 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 90 | 87 |
| Cephalexin | 53 | 53 |
| Azithromycin | 51 | 50 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 29 | 29 |
| Mupirocin | 25 | 25 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 18 | 18 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 17 | 17 |
Practice location
Mailing address
Additional practice locations (1)
- 325 Folly Rd Ste 102aCharleston, SC 29412-2507Phone: (843) 762-1440Fax: (843) 762-6979
Registry dates
- Enumerated
- 2013-01-28
- Last updated
- 2024-10-30
- Certified
- 2024-10-30
Frequently asked questions
- What is Cheryl Irwin's NPI number?
- Cheryl Irwin's National Provider Identifier (NPI) is 1821336793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cheryl Irwin's specialty?
- Cheryl Irwin is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cheryl Irwin located?
- Cheryl Irwin's practice location on file with NPPES is 319 Folly Rd, Charleston, SC 29412-2518.
- What is Cheryl Irwin's phone number?
- The practice phone number listed in the NPPES registry for Cheryl Irwin is (843) 203-2246.
- Does Cheryl Irwin accept Medicare?
- Cheryl Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cheryl Irwin's NPI active?
- Yes — Cheryl Irwin's NPI (1821336793) is active in the NPPES registry as of the last update on 2024-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.