Doctor profile · Federal record
Dr. William Johnson, MD
Pediatric Allergy/Immunology Physician · Pediatrics Physician · Saint Louis, MO
- NPI 1669476495
- MIPS 62.3 / 100 · 2023
- 21 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1 Childrens Pl
Saint Louis, MO 631101002
(314) 454-2694
fax (314) 454-2515
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- January 24, 2018
- Specialty taxonomy
- 2080P0201X — NUCC code
- State license (1)
- Missouri #R1F19
- Medicaid (2)
- MO #202878708 · IL #ENROLLED
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669476495. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,804
Distinct HCPCS
9
Medicare allowed
$33,345
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 836 | 15 | $4 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 400 | 31 | $15 | |
95117 |
Professional service for multiple injections of allergen | 243 | 31 | $11 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 96 | 67 | $124 | |
96160 |
Administration and interpretation of patient-focused health risk assessment | 88 | 58 | $3 | |
94375 |
Test to measure rate of airflow | 84 | 55 | $37 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 31 | 29 | $88 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 13 | 13 | $109 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 13 | 13 | $163 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 414. This provider delivers 4.4× the peer median.Open Payments
Industry payments received
All-time total
$175
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AIMMUNE THERAPEUTICS, INC. | 1 | $175.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
970
Patients
274
Total drug cost
$241,349
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 155 | 47 | $2,339 |
| Fluticasone Propionate | Generic | 105 | 41 | $1,885 |
| Azelastine Hcl | Generic | 99 | 35 | $2,409 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 98 | 49 | $2,977 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 92 | 22 | $95,280 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 82 | 19 | $43,771 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 72 | 14 | $45,664 |
| Ipratropium Bromide | Generic | 50 | 21 | $2,692 |
| Omeprazole | Generic | 42 | 13 | $573 |
| Wixela Inhub (Fluticasone Propion/Salmeterol) | Brand | 42 | 0 | $7,116 |
Frequently asked questions
What is Dr. William Johnson's medical specialty?
Dr. William Johnson practices Pediatric Allergy/Immunology Physician in Saint Louis, MO.
Where does Dr. William Johnson practice?
Dr. William Johnson practices at 1 Childrens Pl, Saint Louis, MO 631101002. Office phone: 3144542694.
What is Dr. William Johnson's NPI?
Dr. William Johnson's National Provider Identifier (NPI) is 1669476495, issued by NPPES.
What procedures does Dr. William Johnson commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Professional service for multiple injections of allergen (HCPCS 95117). Source: CMS Medicare Physician & Other Practitioners file.