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Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
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Methodology•Download Data
  1. Home
  2. Providers
  3. Zia Ahmad
❤️
MDIndividual

Zia Ahmad, M.D., F.A.C.C.

NPI: 1063491777
Saint Louis, MO
10 years of data
Cardiology
$4.8M
Total Payments
23.2K
Beneficiaries
63.6K
Services
3.7x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$4.8M
Specialty median$193.1K

📋 Key Findings

1Billed $4.8M over 10 years
23.7x markup ratio (above median)
398th percentile in Cardiology by payments
411 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $4.8M in total Medicare payments ranks in the 98th percentile of Cardiology providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid — the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$1.7K$399.854.26x$1.3K$502.0K3.4K2.3K
2015$989.51$210.874.69x$778.64$378.4K3.4K2.2K
2016$878.18$191.254.59x$686.93$345.1K3.5K2.0K
2017$1.1K$246.254.51x$863.19$416.5K3.5K2.1K
2018$1.2K$277.214.36x$932.40$520.8K4.7K2.2K
2019$1.4K$334.974.08x$1.0K$541.4K4.9K1.8K
2020$713.48$153.364.65x$560.12$561.5K9.5K3.1K
2021$665.44$146.304.55x$519.14$632.7K11.1K3.1K
2022$1.2K$263.434.71x$977.89$537.6K10.0K2.3K
2023$225.45$61.163.69x$164.29$384.9K9.5K2.2K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$431.0K
5.5K services$78.43/svc2.60x markup
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
$336.1K
7.8K services$43.21/svc2.66x markup
G2066Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec⚠ 4.7x markup
$333.7K
4.0K services$83.39/svc4.70x markup
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes
$297.5K
7.7K services$38.52/svc2.59x markup
93299Remote evaluations of implantable heart recorder system including transmissions, technician review, support, and distribution of results up to 30 days⚠ 3.8x markup
$288.1K
2.8K services$103.21/svc3.80x markup
99458Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; each additional 20 minute
$217.1K
6.8K services$31.74/svc2.60x markup
36247Insertion of catheter into abdominal pelvic or leg artery⚠ 5.2x markup
$216.1K
190 services$1.1K/svc5.22x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$205.1K
2.5K services$81.19/svc2.26x markup
33285Insertion of heart rhythm monitor under skin⚠ 3.3x markup
$199.4K
67 services$3.0K/svc3.25x markup
37238Insertion of intravascular stents in vein, open or accessed through the skin, with radiological supervision and interpretation⚠ 3.3x markup
$198.3K
65 services$3.1K/svc3.30x markup
36252Insertion of catheters into main and accessory arteries of both kidneys for imaging including radiological supervision and interpretation⚠ 5.2x markup
$196.6K
205 services$959.01/svc5.15x markup
78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies
$168.0K
531 services$316.37/svc2.63x markup
37252Ultrasound evaluation of blood vessel during diagnosis or treatment⚠ 4.0x markup
$163.1K
167 services$976.55/svc3.97x markup
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart⚠ 6.6x markup
$156.5K
481 services$325.41/svc6.57x markup
36475Destruction of insufficient vein of arm or leg, accessed through the skin⚠ 4.4x markup
$107.5K
84 services$1.3K/svc4.41x markup
99222Initial hospital inpatient care, typically 50 minutes per day
$100.4K
949 services$105.78/svc2.92x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$93.2K
1.7K services$56.40/svc2.44x markup
37225Removal of plaque in arteries in one leg, endovascular, accessed through the skin or open procedure⚠ 3.9x markup
$88.5K
11 services$8.0K/svc3.89x markup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function⚠ 4.2x markup
$86.6K
1.0K services$85.89/svc4.15x markup
A9500Technetium tc-99m sestamibi, diagnostic, per study dose
$79.5K
518 services$153.56/svc2.13x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes5.5K$431.0K$78.432.60x
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days7.8K$336.1K$43.212.66x
G2066Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec4.0K$333.7K$83.394.70x
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes7.7K$297.5K$38.522.59x
93299Remote evaluations of implantable heart recorder system including transmissions, technician review, support, and distribution of results up to 30 days2.8K$288.1K$103.213.80x
99458Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; each additional 20 minute6.8K$217.1K$31.742.60x
36247Insertion of catheter into abdominal pelvic or leg artery190$216.1K$1.1K5.22x
99233Subsequent hospital inpatient care, typically 35 minutes per day2.5K$205.1K$81.192.26x
33285Insertion of heart rhythm monitor under skin67$199.4K$3.0K3.25x
37238Insertion of intravascular stents in vein, open or accessed through the skin, with radiological supervision and interpretation65$198.3K$3.1K3.30x
36252Insertion of catheters into main and accessory arteries of both kidneys for imaging including radiological supervision and interpretation205$196.6K$959.015.15x
78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies531$168.0K$316.372.63x
37252Ultrasound evaluation of blood vessel during diagnosis or treatment167$163.1K$976.553.97x
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart481$156.5K$325.416.57x
36475Destruction of insufficient vein of arm or leg, accessed through the skin84$107.5K$1.3K4.41x
99222Initial hospital inpatient care, typically 50 minutes per day949$100.4K$105.782.92x
99213Established patient office or other outpatient visit, typically 15 minutes1.7K$93.2K$56.402.44x
37225Removal of plaque in arteries in one leg, endovascular, accessed through the skin or open procedure11$88.5K$8.0K3.89x
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function1.0K$86.6K$85.894.15x
A9500Technetium tc-99m sestamibi, diagnostic, per study dose518$79.5K$153.562.13x

Markup Analysis

Charge-to-Payment Ratio

3.7x

This provider submits charges 3.7 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.7x means for every $100 Medicare pays, this provider initially charges $370. This is higher than the national average.

Location

Saint Louis, MO

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

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Data Sources

  • • Centers for Medicare & Medicaid Services (CMS)
  • • Medicare Provider Utilization and Payment Data (2014-2023)
  • • National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

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