James Duncan, D.O.
NPI 1235216847 · Family Medicine Physician · West Portsmouth, OH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Duncan, D.O. is a Family Medicine Physician provider in West Portsmouth, OH (NPI 1235216847).
Provider details
- NPI number
- 1235216847
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 34002558 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,864 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 843 | $120 |
| Blood Glucose (sugar) Level82947 | 184 | $4 |
| Hemoglobin A1c Level83036 | 158 | $9 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 99 | $17 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 96 | $24 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 91 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 157 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 473 | 90 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 429 | 72 |
| Lisinopril | 406 | 86 |
| Atorvastatin Calcium | 363 | 87 |
| Pantoprazole Sodium | 297 | 67 |
| Gabapentin | 270 | 53 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$62 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2018-09-11
Frequently asked questions
- What is James Duncan's NPI number?
- James Duncan's National Provider Identifier (NPI) is 1235216847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Duncan's specialty?
- James Duncan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Duncan located?
- James Duncan's practice location on file with NPPES is 22442 State Route 73, West Portsmouth, OH 45663-6365.
- What is James Duncan's phone number?
- The practice phone number listed in the NPPES registry for James Duncan is (740) 858-6656.
- Does James Duncan accept Medicare?
- James Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Duncan's NPI active?
- Yes — James Duncan's NPI (1235216847) is active in the NPPES registry as of the last update on 2018-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.