William Oquinn, M.D.
NPI 1508870726 · Family Medicine Physician · Branchville, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Oquinn, M.D. is a Family Medicine Physician provider in Branchville, SC (NPI 1508870726).
Provider details
- NPI number
- 1508870726
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 007265 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
99 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) |
|---|---|---|
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 36 | $16 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 27 | $50 |
| Automated Urinalysis Test81003 | 24 | $2 |
| Administration of Influenza Virus VaccineG0008 | 12 | $30 |
Typical Medicare-allowed amounts for these services range $2–$50 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 131 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 678 | 152 |
| Amlodipine Besylate | 525 | 125 |
| Losartan Potassium | 398 | 82 |
| Rosuvastatin Calcium | 279 | 60 |
| Pantoprazole Sodium | 270 | 66 |
| Hydrochlorothiazide | 262 | 64 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2013-10-08
Frequently asked questions
- What is William Oquinn's NPI number?
- William Oquinn's National Provider Identifier (NPI) is 1508870726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Oquinn's specialty?
- William Oquinn is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Oquinn located?
- William Oquinn's practice location on file with NPPES is 215 Dorange Rd, Branchville, SC 29432-2241.
- What is William Oquinn's phone number?
- The practice phone number listed in the NPPES registry for William Oquinn is (803) 274-8400.
- Does William Oquinn accept Medicare?
- William Oquinn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Oquinn's NPI active?
- Yes — William Oquinn's NPI (1508870726) is active in the NPPES registry as of the last update on 2013-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.