William Tschannen, PA-C
NPI 1427651967 · Physician Assistant · Saint Louis, MO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Tschannen, PA-C is a Physician Assistant provider in Saint Louis, MO (NPI 1427651967).
Provider details
- NPI number
- 1427651967
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2021009626 (MO)
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 tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 99 | 29 |
| Levothyroxine Sodium | 95 | 26 |
| Lisinopril | 82 | 22 |
| Amlodipine Besylate | 82 | 22 |
| Methylprednisolone | 81 | 66 |
| Gabapentin | 75 | 20 |
| Losartan Potassium | 74 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$386 across 21 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)
- 130 E Lockling StBrookfield, MO 64628-2337Phone: (660) 258-2222
Registry dates
- Enumerated
- 2020-11-18
- Last updated
- 2025-12-18
- Certified
- 2025-12-18
Frequently asked questions
- What is William Tschannen's NPI number?
- William Tschannen's National Provider Identifier (NPI) is 1427651967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Tschannen's specialty?
- William Tschannen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Tschannen located?
- William Tschannen's practice location on file with NPPES is 3009 N Ballas Rd Ste 390c, Saint Louis, MO 63131-2322.
- What is William Tschannen's phone number?
- The practice phone number listed in the NPPES registry for William Tschannen is (314) 996-5900.
- Does William Tschannen accept Medicare?
- William Tschannen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Tschannen's NPI active?
- Yes — William Tschannen's NPI (1427651967) is active in the NPPES registry as of the last update on 2025-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.