Colleen O'Brien, DNP
NPI 1801508148 · Family Nurse Practitioner · Charleston, SC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen O'Brien, DNP is a Family Nurse Practitioner provider in Charleston, SC (NPI 1801508148).
Provider details
- NPI number
- 1801508148
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- No
- License
- 26846 (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
3 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
993 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 | 396 | $71 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 107 | $63 |
| X-Ray of Chest, 2 Views71046 | 95 | $22 |
| Automated Urinalysis Test81003 | 62 | $2 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 62 | $49 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 48 | $11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 95 | 93 |
| Fluticasone Propionate | 54 | 54 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 53 | 51 |
| Cephalexin | 41 | 40 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 39 | 38 |
| Amoxicillin | 35 | 35 |
| Mupirocin | 35 | 34 |
Practice location
Mailing address
Additional practice locations (1)
- 319 Folly RdCharleston, SC 29412-2518Phone: (843) 203-2246Fax: (843) 203-2247
Registry dates
- Enumerated
- 2022-12-19
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Colleen O'Brien's NPI number?
- Colleen O'Brien's National Provider Identifier (NPI) is 1801508148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen O'Brien's specialty?
- Colleen O'Brien is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Colleen O'Brien located?
- Colleen O'Brien's practice location on file with NPPES is 316 Calhoun St, Charleston, SC 29401-1113.
- What is Colleen O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Colleen O'Brien is (843) 724-2450.
- Does Colleen O'Brien accept Medicare?
- Colleen O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen O'Brien's NPI active?
- Yes — Colleen O'Brien's NPI (1801508148) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.