Michelle Terwilliger, NP
NPI 1912360546 · Family Nurse Practitioner · Dyer, IN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Terwilliger, NP is a Family Nurse Practitioner provider in Dyer, IN (NPI 1912360546).
Provider details
- NPI number
- 1912360546
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 29522 (SC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
404 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 | 358 | $100 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 17 | $72 |
Typical Medicare-allowed amounts for these services range $72–$132 (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 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 268 | 72 |
| Levetiracetam | 168 | 49 |
| Lamotrigine | 152 | 36 |
| Donepezil Hcl | 140 | 65 |
| Pregabalin | 136 | 37 |
| Duloxetine Hcl | 133 | 41 |
| Clonazepam | 111 | 22 |
| Memantine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,611 across 201 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
Additional practice locations (1)
- 2 Innovation Dr Ste 350Greenville, SC 29607-5269Phone: (864) 516-1170
Registry dates
- Enumerated
- 2016-03-31
- Last updated
- 2025-04-17
- Certified
- 2025-04-17
Frequently asked questions
- What is Michelle Terwilliger's NPI number?
- Michelle Terwilliger's National Provider Identifier (NPI) is 1912360546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Terwilliger's specialty?
- Michelle Terwilliger is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michelle Terwilliger located?
- Michelle Terwilliger's practice location on file with NPPES is 1100 Joliet St, Dyer, IN 46311-1996.
- What is Michelle Terwilliger's phone number?
- The practice phone number listed in the NPPES registry for Michelle Terwilliger is (219) 836-2096.
- Does Michelle Terwilliger accept Medicare?
- Michelle Terwilliger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Terwilliger's NPI active?
- Yes — Michelle Terwilliger's NPI (1912360546) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.