Todd Markwalter, APN
NPI 1700894276 · Family Nurse Practitioner · Johnson City, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Todd Markwalter, APN is a Family Nurse Practitioner provider in Johnson City, TN (NPI 1700894276).
Provider details
- NPI number
- 1700894276
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Male
- Sole proprietor
- No
- License
- 8440 (TN)
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
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
1,152 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 374 | $58 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 341 | $84 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 264 | $84 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 155 | $58 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 18 | $103 |
Typical Medicare-allowed amounts for these services range $58–$103 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 673 | 31 |
| Gabapentin | 624 | 37 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 509 | 36 |
| Levothyroxine Sodium | 469 | 17 |
| Atorvastatin Calcium | 322 | 11 |
| Mirtazapine | 225 | 12 |
| Potassium Chloride |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$219 across 6 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
- 2006-08-03
- Last updated
- 2014-10-20
Frequently asked questions
- What is Todd Markwalter's NPI number?
- Todd Markwalter's National Provider Identifier (NPI) is 1700894276, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Todd Markwalter's specialty?
- Todd Markwalter is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Todd Markwalter located?
- Todd Markwalter's practice location on file with NPPES is 119 Boone Ridge Dr, Johnson City, TN 37615-4998.
- What is Todd Markwalter's phone number?
- The practice phone number listed in the NPPES registry for Todd Markwalter is (423) 282-1480.
- Does Todd Markwalter accept Medicare?
- Todd Markwalter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Todd Markwalter's NPI active?
- Yes — Todd Markwalter's NPI (1700894276) is active in the NPPES registry as of the last update on 2014-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.