Dr. Ahmed Messallam, M.D
What this data tells you about Dr. Messallam
Dr. Ahmed Messallam is a student in an organized health care education/training program specialist in Marietta, GA, with 12 years of NPI registration. Based on federal Medicare data, Dr. Messallam performed 553 Medicare services across 502 unique beneficiaries.
Between the years covered by Open Payments, Dr. Messallam received a total of $2,317 from 16 pharmaceutical and/or device companies across 43 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in student in an organized health care education/training program. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Messallam is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Upper GI endoscopy with biopsy A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities. |
109 | $32 | $885 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
74 | $62 | $183 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
54 | $102 | $348 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
39 | $39 | $100 |
| Colonoscopy with biopsy A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease. |
37 | $80 | $1,033 |
| Endoscopic ultrasound of esophagus, stomach, or upper small bowel An ultrasound exam of the esophagus, stomach, and/or upper small bowel performed using a flexible endoscope. |
36 | $153 | $844 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
35 | $67 | $230 |
| Colon polyp removal with endoscopic snare This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination. |
27 | $141 | $1,101 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
26 | $133 | $406 |
| Endoscopic ultrasound-guided needle biopsy A procedure using an ultrasound-equipped endoscope to guide a needle for tissue sampling of the esophagus, stomach, or upper small bowel. |
25 | $201 | $804 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
24 | $91 | $277 |
| Endoscopic removal of bile or pancreatic duct stone A flexible endoscope is used to remove stones or debris from the bile or pancreatic ducts. |
20 | $108 | $1,600 |
| Esophageal dilation with guide wire and endoscope A flexible endoscope is used to insert a guide wire into the esophagus, followed by dilation to widen the esophageal passage. |
16 | $107 | $894 |
| Removal of large bowel tissue using flexible endoscope A procedure to remove tissue from the large intestine using a flexible tube with a camera. The endoscope allows the provider to access and excise the tissue directly. |
16 | $259 | $1,200 |
| Pancreatic or bile duct stent insertion A flexible endoscope is used to place a stent into the pancreatic or bile duct to keep it open. |
15 | $310 | $1,224 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2019-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Messallam is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 16% of GA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Messallam experienced with upper gi endoscopy with biopsy?
Does Dr. Messallam receive payments from pharmaceutical companies?
How do Dr. Messallam's costs compare to other student in an organized health care education/training programs in Marietta?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology