William Oquinn, MD
NPI 1700990587 · Family Medicine Physician · Port Royal, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Oquinn, MD is a Family Medicine Physician provider in Port Royal, SC (NPI 1700990587).
Provider details
- NPI number
- 1700990587
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- TL31284 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
490 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 | 136 | $82 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 82 | $50 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 70 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 68 | $116 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 57 | $94 |
| Automated Urinalysis Test81003 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 65 | 61 |
| Azithromycin | 49 | 48 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 37 | 35 |
| Prednisone | 36 | 36 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 32 | 32 |
| Methylprednisolone | 25 | 25 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2024-10-31
- Certified
- 2024-10-31
Frequently asked questions
- What is William Oquinn's NPI number?
- William Oquinn's National Provider Identifier (NPI) is 1700990587, 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 1510 Ribaut Rd, Port Royal, SC 29935-1403.
- What is William Oquinn's phone number?
- The practice phone number listed in the NPPES registry for William Oquinn is (843) 770-0676.
- 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 (1700990587) is active in the NPPES registry as of the last update on 2024-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.