Clarence Darby, PA PHD
NPI 1073535605 · Medical Physician Assistant · Columbia, SC
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clarence Darby, PA PHD is a Medical Physician Assistant provider in Columbia, SC (NPI 1073535605).
Provider details
- NPI number
- 1073535605
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 440 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 101 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 218 | 26 |
| Amlodipine Besylate | 132 | 17 |
| Omeprazole | 128 | 16 |
| Levothyroxine Sodium | 106 | — |
| Olanzapine | 91 | — |
| Pravastatin Sodium | 91 | — |
| Pantoprazole Sodium | 89 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2023-08-07
- Certified
- 2023-08-07
Frequently asked questions
- What is Clarence Darby's NPI number?
- Clarence Darby's National Provider Identifier (NPI) is 1073535605, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clarence Darby's specialty?
- Clarence Darby is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clarence Darby located?
- Clarence Darby's practice location on file with NPPES is 140 Wildewood Park Dr Ste 107, Columbia, SC 29223-4312.
- What is Clarence Darby's phone number?
- The practice phone number listed in the NPPES registry for Clarence Darby is (803) 722-4988.
- Does Clarence Darby accept Medicare?
- Clarence Darby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clarence Darby's NPI active?
- Yes — Clarence Darby's NPI (1073535605) is active in the NPPES registry as of the last update on 2023-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.