Zachary Terwilliger, M.D.
NPI 1881058881 · Emergency Medicine Physician · Daytona Beach, FL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Terwilliger, M.D. is a Emergency Medicine Physician provider in Daytona Beach, FL (NPI 1881058881).
Provider details
- NPI number
- 1881058881
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME138339 (FL)
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
10 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
424 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 | 173 | $173 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 104 | $119 |
| Critical Care, First 30-74 Minutes99291 | 62 | $210 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 44 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 27 | $71 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 14 | $142 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 33 | 33 |
| Ibuprofen | 24 | 24 |
| Prednisone | 21 | 21 |
| Cefdinir | 16 | 16 |
| Doxycycline Hyclate | 16 | 16 |
| Cephalexin | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 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
- 2016-04-06
- Last updated
- 2019-07-10
Frequently asked questions
- What is Zachary Terwilliger's NPI number?
- Zachary Terwilliger's National Provider Identifier (NPI) is 1881058881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Terwilliger's specialty?
- Zachary Terwilliger is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Terwilliger located?
- Zachary Terwilliger's practice location on file with NPPES is 303 N Clyde Morris Blvd, Daytona Beach, FL 32114-2709.
- What is Zachary Terwilliger's phone number?
- The practice phone number listed in the NPPES registry for Zachary Terwilliger is (386) 425-2285.
- Does Zachary Terwilliger accept Medicare?
- Zachary Terwilliger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Terwilliger's NPI active?
- Yes — Zachary Terwilliger's NPI (1881058881) is active in the NPPES registry as of the last update on 2019-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.