Eric Duffield, P.A
NPI 1245427004 · Physician Assistant · Lansing, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Duffield, P.A is a Physician Assistant provider in Lansing, MI (NPI 1245427004).
Provider details
- NPI number
- 1245427004
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A
- Sex
- Male
- Sole proprietor
- No
- License
- 5601003938 (MI)
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 tenure25% of score
18 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
461 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 | 244 | $87 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 115 | $71 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 35 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 18 | $104 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 16 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 115 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 247 | 57 |
| Levothyroxine Sodium | 229 | 58 |
| Omeprazole | 196 | 59 |
| Amlodipine Besylate | 181 | 49 |
| Atorvastatin Calcium | 164 | 52 |
| Montelukast Sodium | 144 | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$574 across 31 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
- 2007-09-26
- Last updated
- 2007-09-26
Frequently asked questions
- What is Eric Duffield's NPI number?
- Eric Duffield's National Provider Identifier (NPI) is 1245427004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Duffield's specialty?
- Eric Duffield is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Eric Duffield located?
- Eric Duffield's practice location on file with NPPES is 405 W Greenlawn Ave, Lansing, MI 48910-2898.
- What is Eric Duffield's phone number?
- The practice phone number listed in the NPPES registry for Eric Duffield is (517) 346-5000.
- Does Eric Duffield accept Medicare?
- Eric Duffield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Duffield's NPI active?
- Yes — Eric Duffield's NPI (1245427004) is active in the NPPES registry as of the last update on 2007-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.