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Physician

WALLACE JOHNSON, M.D.

Internal Medicine

BALTIMORE, MD, 21201
NPI: 1043253867

Contact

Internal Medicine

BALTIMORE, MD

UNIVERSITY OF MD MEDICAL CENTER MIDTOWN CAMPUS

410-225-8996

umms.org/midtown/locations/ummc-midtown-campus

Hospital Affiliations

Search procedure prices at these hospitals only

Common Procedures for Internal Medicine

Annual Physical ExamChronic Disease ManagementPreventive ScreeningBlood Pressure ManagementDiabetes ManagementCholesterol ManagementImmunizationsEKGSpirometryHealth Risk Assessment

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
99204
New patient office or other outpatient visit, 45-59 minutes
$315$179$13220
99215
Established patient office or other outpatient visit, 40-54 minutes
$280$192$15316
99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
$260$138$10119
99214
Established patient office or other outpatient visit, 30-39 minutes
$205$136$92477
99213
Established patient office or other outpatient visit, 20-29 minutes
$140$97$7426
90662
Influenza vaccine split virus, preservative free
$67$66$6625
G0008
Administration of influenza virus vaccine
$30$29$2926

Compare prices for procedures performed by Internal Medicine physicians

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