WILLIAM TSCHANNEN PA-C
NPI 1427651967
Physician Assistant in Saint Louis, MO

Q: What is William Tschannen's NPI number?

The NPI number for William Tschannen is 1427651967. It was assigned to this individual provider in the NPPES registry on November 18, 2020.

Q: What is William Tschannen's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for William Tschannen was last updated on December 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 18, 2020PECOS EnrolledAccepts Medicare Assignment

3009 N BALLAS RD STE 390C, SAINT LOUIS, MO 63131(314) 996-5900(314) 996-5910 Get Directions Write a Review

NPPES record last updated: December 18, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 18, 2025, Nov 18, 2024, Sep 30, 2021 and 1 more (4 updates tracked since 2020).

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About William Tschannen Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM TSCHANNEN PA-C (NPI 1427651967) is an individual physician assistant in Saint Louis, Missouri, licensed in Missouri (2021009626) and active in the NPI registry since November 2020. He is enrolled in Medicare PECOS, is affiliated with Pershing Memorial Hospital, and maintains a secondary practice location in Brookfield.

NPPES Registry Identity

NPI1427651967

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameWILLIAM TSCHANNENCredential: PA-C

Location Address3009 N BALLAS RD STE 390CSaint Louis, MO 63131-2322

Mailing AddressPo Box 959354Saint Louis, MO 63195-9354 · (314) 996-5900 · Fax (314) 996-5910

Phone(314) 996-5900

Fax(314) 996-5910

Sole ProprietorYes

Medical School CMSOtherGraduated 2020

Enumeration DateNovember 18, 2020

Last NPPES UpdateDecember 18, 20254 updates tracked since enumeration

NPPES CertifiedDecember 18, 2025

✔ NPI 1427651967 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in MO · 2021009626

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 2021009626 (MO)

3009 N BALLAS RD STE 390C, Saint Louis, MO 63131

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Secondary Practice Location 1

Location 1130 E Lockling StBrookfield, MO 64628-2337 · Phone (660) 258-2222

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Tschannen Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880001924

PECOS Enrollment IDI20210407002349

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Pershing Memorial Hospital

Critical Access Hospitals · Brookfield, MO

OwnershipVoluntary non-profit - Private

CMS Certification Number261307

Location130 East LocklingBrookfield, MO 64628 · Linn County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63131 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$86.32 typical visit price

range $55.65 – $169.38

Typical copayment $21.58 (range $13.91 – $42.34)

Most-billed visit code 99203

Established Patient

$69.50 typical visit price

range $17.76 – $137.92

Typical copayment $17.37 (range $4.44 – $34.48)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908

DME-Orthotic Devices · category DF000N

1 supplier24 claims24 services$45.44 avg. paid by Medicare

Walking boot, pneumatic and/or vacuum, with or without joints, with or without interface material, prefabricated, off-the-shelf L4361

DME-Orthotic Devices · category DF003N

1 supplier24 claims24 services$201.80 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BARRY MICHAEL MOSSMAN M.D.

Internal Medicine