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Physician

WILLIAM KNAPP, D.O.

Family Medicine

FLORISSANT, MO, 63031
NPI: 1023099140

Hospital Affiliations

Search procedure prices at these hospitals only

Common Procedures for Family Medicine

Annual Physical ExamWell-Child VisitImmunizationsChronic Disease ManagementSports PhysicalMinor Wound CareSkin Lesion RemovalJoint InjectionPreventive ScreeningMental Health Screening

Based on specialty. Actual services may vary — contact the provider's office to confirm.

Procedure Pricing (Medicare Data)

Based on CMS Medicare Provider Utilization data for 2023. These represent what this physician charged Medicare, not necessarily what you would pay. Compare with other physicians

ProcedureAvg ChargeMedicare AllowedMedicare PaidServices
99214
Established patient office or other outpatient visit, 30-39 minutes
$162$124$79280
82306
Vitamin d-3 level
$91$29$2952
93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
$91$14$1021
80061
Blood test, lipids (cholesterol and triglycerides)
$82$13$13117
84443
Blood test, thyroid stimulating hormone (tsh)
$75$16$16128
90662
Influenza vaccine split virus, preservative free
$69$68$6833
82043
Urine microalbumin (protein) level
$64$6$626
80053
Blood test, comprehensive group of blood chemicals
$62$10$10202
83036
Hemoglobin a1c level
$62$10$1058
G0103
Prostate cancer screening; prostate specific antigen test (psa)
$57$19$1932
80048
Blood test, basic group of blood chemicals (calcium, total)
$41$8$834
85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
$36$8$8195
G0008
Administration of influenza virus vaccine
$31$30$3034
82570
Creatinine level to test for kidney function or muscle injury
$28$5$527
84439
Thyroxine (thyroid chemical), free
$28$9$920
36415
Insertion of needle into vein for collection of blood sample
$16$8$8257
81002
Urinalysis, manual test
$13$3$313
85652
Red blood cell sedimentation rate, to detect inflammation, automated
$9$3$312
85018
Blood count, hemoglobin
$7$2$237
85014
Red blood cell concentration measurement
$7$2$236

Compare prices for procedures performed by Family Medicine physicians

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Physician identity data from the NPPES NPI Registry. Last synced 3/28/2026.