David Hansen, D.O.
NPI 1235578642 · Emergency Medicine Physician · Westfield, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Hansen, D.O. is a Emergency Medicine Physician provider in Westfield, MA (NPI 1235578642).
Provider details
- NPI number
- 1235578642
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 1025179 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
317 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 121 | $179 |
| Critical Care, First 30-74 Minutes99291 | 83 | $217 |
| Critical Care, Each Additional 30 Minutes99292 | 65 | $110 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 48 | $124 |
Typical Medicare-allowed amounts for these services range $110–$217 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 54 | 54 |
| Ondansetronbrand: Ondansetron Odt | 40 | 39 |
| Ibuprofen | 40 | 40 |
| Cyclobenzaprine Hcl | 27 | 27 |
| Cephalexin | 26 | 26 |
| Prednisone | 18 | 18 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 15 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$79 across 4 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
- 2013-06-19
- Last updated
- 2025-12-24
- Certified
- 2025-12-24
Frequently asked questions
- What is David Hansen's NPI number?
- David Hansen's National Provider Identifier (NPI) is 1235578642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Hansen's specialty?
- David Hansen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Hansen located?
- David Hansen's practice location on file with NPPES is 115 W Silver St, Westfield, MA 01085-3678.
- What is David Hansen's phone number?
- The practice phone number listed in the NPPES registry for David Hansen is (413) 568-2811.
- Does David Hansen accept Medicare?
- David Hansen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Hansen's NPI active?
- Yes — David Hansen's NPI (1235578642) is active in the NPPES registry as of the last update on 2025-12-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.