1. Home
  2. Directory
  3. Missouri
  4. Saint Charles
  5. Pediatrics
  6. NPI Profile

DR. HOMER THOMAS JOHNSON II M.D.
NPI 1932223898
Pediatrics - Sleep Medicine in Saint Charles, MO

Active since March 18, 2007PECOS EnrolledAccepts Medicare Assignment
1475 KISKER RD, SUITE 200, SAINT CHARLES, MO 63304(636) 498-7880(636) 498-7889 Get Directions Write a Review

NPPES record last updated: March 14, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Homer Thomas Johnson Ii M.d. NPPES

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

DR. HOMER THOMAS JOHNSON II M.D. (NPI 1932223898) is an individual sleep medicine provider in Saint Charles, Missouri, licensed in Missouri (2007001620) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and is a graduate of University Of Missouri, Columbia School Of Medicine (2004).

NPPES Registry Identity

NPI1932223898
Entity TypeIndividualMale
Primary Taxonomy2080S0012X
Provider Legal NameDR. HOMER THOMAS JOHNSON IICredential: M.D.
Location Address1475 KISKER RD, SUITE 200Saint Charles, MO 63304-8781
Mailing AddressPo Box 955534Saint Louis, MO 63195-5534
Phone(636) 498-7880
Fax(636) 498-7889
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2004
Enumeration DateMarch 18, 2007
Last NPPES UpdateMarch 14, 2022
NPPES CertifiedMarch 14, 2022
✔ NPI 1932223898 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatrics · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080S0012X
License✔ Licensed in MO · 2007001620
Definition
A Pediatrician who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Also ListedFamily MedicineTaxonomy 207Q00000X · License ME 97186 (FL), NO. 2007001620 (MO)
Also ListedFamily Medicine · Sleep MedicineTaxonomy 207QS1201X · License 2007001620 (MO)
1475 KISKER RD, Saint Charles, MO 63304
Open in Google Maps ↗

Other Identifiers 1

Medicaid205475809MO

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Homer Thomas Johnson Ii M.d. 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 ID4688761356
PECOS Enrollment IDI20071026000443
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Homer Johnson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ssm Health Care St. Louis
7.9 mi
Emergency Medicine
300 1ST CAPITOL DR
Saint Charles, MO 63301
  • Reassigned Medicare billing, Missouri enrollment
  • 741 clinicians in this Medicare group
NPI 1427002922 (636) 947-5000
Ssm Medical Group, Inc.
8.8 mi
Clinic/Center
1101 HIGHWAY K STE A
O Fallon, MO 63366
  • Reassigned Medicare billing, Missouri enrollment
  • 697 clinicians in this Medicare group
NPI 1851896146 (844) 766-7200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
143 services126 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
38 services38 patients
Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation G0399
A Home Sleep Test (HST) with a Type III Portable Monitor is an unattended test that records your breathing, heart rate, and oxygen levels during sleep. This test uses a minimum of 4 channels to monitor these parameters, helping to diagnose sleep disorders.
33 services33 patients

Hospital Affiliations CMS Care Compare

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

Ssm St Joseph Health Center

Acute Care Hospitals · Saint Charles, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260005
Location300 1st Capitol DrSaint Charles, MO 63301 · St. Charles County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63304 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
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 15

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

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
11 suppliers234 claims236 services$32.12 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
6 suppliers102 claims102 services$72.70 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
5 suppliers96 claims270 services$28.51 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
8 suppliers106 claims598 services$15.73 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
5 suppliers75 claims419 services$13.15 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
11 suppliers188 claims190 services$47.30 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 20

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

SHITAL MEHTA
Nutritionist
1475 KISKER RD
SAINT CHARLES, MO 63304
St. Charles County (636) 498-7800
FOREFRONT DERMATOLOGY, S.C.
Dermatology
1475 KISKER RD, SUITE 270
SAINT CHARLES, MO 63304
St. Charles County (920) 663-9016
DR. RICHARD F VAUGHN M.D.
Internal Medicine
1475 KISKER RD
SAINT CHARLES, MO 63304
St. Charles County (636) 498-5850
SSM ST. JOSEPH HEALTH CENTER
Clinic/Center (Oncology, Radiation)
1475 KISKER RD, SUITE 190
SAINT CHARLES, MO 63304
St. Charles County (636) 498-7800
MRS. LAUREN RAE KNIGHT APRN, FNP-BC
Nurse Practitioner (Family)
1475 KISKER RD
SAINT CHARLES, MO 63304
St. Charles County (636) 498-7400
AMELIA SIGNORELLI
Occupational Therapist
1475 KISKER RD
SAINT CHARLES, MO 63304
St. Charles County (636) 498-7474
HEEL TO TOE PODIATRY LLC
Podiatrist (Foot & Ankle Surgery)
1475 KISKER RD, SUITE 260
SAINT CHARLES, MO 63304
St. Charles County (636) 928-4447
SSM ST. JOSEPH SURGERY CENTER, LLC
Clinic/Center (Ambulatory Surgical)
1475 KISKER RD
SAINT CHARLES, MO 63304
St. Charles County (636) 498-7400

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Homer Johnson's NPI number?

The NPI number for Homer Johnson is 1932223898. It was assigned to this individual provider in the NPPES registry on March 18, 2007.

Where is Homer Johnson located?

Homer Johnson practices at 1475 Kisker Rd Suite 200, Saint Charles, MO 63304. The listed phone number is (636) 498-7880.

What is Homer Johnson's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Sleep Medicine, with taxonomy code 2080S0012X.

Is Homer Johnson enrolled in Medicare?

Yes. Homer Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Homer Johnson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Homer Johnson reassigns Medicare benefits to 2 organizations: Ssm Health Care St. Louis (Saint Charles, MO) and Ssm Medical Group, Inc. (O Fallon, MO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Homer Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Homer Johnson accept?

Health plans from Anthem Blue Cross and Blue Shield and Oscar Insurance Company list Homer Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Homer Johnson affiliated with any hospitals?

According to CMS data, Homer Johnson is affiliated with Ssm St Joseph Health Center.

When was this NPI record last updated?

The NPPES record for Homer Johnson was last updated on March 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.