Medicare Enrolled
Dr. Siraj Ahmed, M.D.
Internal Medicine · Manteca, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Ahmed from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Ahmed
Dr. Siraj Ahmed is an internal medicine specialist in Manteca, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Ahmed performed 3,989 Medicare services across 1,471 unique beneficiaries.
Between the years covered by Open Payments, Dr. Ahmed received a total of $4,582 from 22 pharmaceutical and/or device companies across 170 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. 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. Ahmed 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.
✓ 19 years in practice
▲ Top 7% volume in CA
$4,582 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,989
Medicare services
Top 7% in CA for internal medicine
1,471
Unique beneficiaries
$105
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~210 Medicare services per year of practice
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 |
|---|---|---|---|
| Hyperbaric oxygen therapy, full body chamber Treatment involving breathing pure oxygen in a pressurized full-body chamber. The service is billed for each 30-minute interval of the procedure. |
1,269 | $146 | $542 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
701 | $94 | $239 |
| Oxygen chamber therapy management This code covers the professional management and oversight of a patient undergoing oxygen chamber therapy. It involves monitoring the patient's response and adjusting the treatment plan as needed. |
320 | $83 | $700 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
317 | $167 | $529 |
| SARS-CoV-2 immunoassay test A laboratory test using immunoassay techniques to detect the presence of severe acute respiratory syndrome coronavirus. |
222 | $35 | $200 |
| Spirometry test before and after medication A test that measures the amount of air you can exhale and the speed of your breathing before and after taking a medication. |
178 | $29 | $140 |
| 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. |
147 | $95 | $236 |
| Exercise-induced lung stress test A test performed to evaluate how the lungs function during physical exertion. It helps identify breathing difficulties or lung conditions that occur specifically when exercising. |
122 | $26 | $130 |
| Lung volume test using sensors A test that measures the amount of air in the lungs using sensors. |
121 | $45 | $125 |
| Pulmonary gas exchange test A test to examine how well the lungs exchange gases. |
121 | $47 | $125 |
| Sleep study with heart rate and breathing monitoring A sleep study that monitors heart rate, breathing patterns, and sleep duration. This test records physiological data while you sleep to assess your sleep quality and breathing function. |
118 | $125 | $300 |
| COVID-19 amplified DNA/RNA probe detection A laboratory test that uses amplified DNA or RNA probes to detect the presence of severe acute respiratory syndrome coronavirus 2 (COVID-19) antigen. |
63 | $50 | $202 |
| 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. |
50 | $73 | $160 |
| 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. |
48 | $133 | $350 |
| New patient office visit, complex (60-74 min) | 44 | $177 | $435 |
| 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. |
24 | $103 | $450 |
| Bronchoscopy A diagnostic exam of the lung airways using an endoscope to visually inspect the inside of the lungs and airways. |
22 | $103 | $515 |
| Emergent tracheostomy An emergency procedure to create an opening in the windpipe to insert a breathing tube, guided by an endoscope. |
17 | $103 | $215 |
| Insertion of non-tunneled central venous catheter A procedure to place a central venous catheter for infusion in patients aged 5 years or older. The catheter is inserted directly into a large vein without being tunneled under the skin. |
16 | $57 | $370 |
| COVID-19 nucleic acid test, high throughput A laboratory test that detects the genetic material of the SARS-CoV-2 virus using an amplified probe technique. This method utilizes high-throughput technologies to process samples. |
16 | $74 | $300 |
| COVID-19 nucleic acid test, high throughput A laboratory test that detects the genetic material of the SARS-CoV-2 virus using amplified probe techniques. This method utilizes high-throughput technologies to process samples efficiently. |
15 | $24 | $100 |
| 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. |
14 | $63 | $232 |
| Manual attempt to restore blood circulation and breathing A manual procedure performed to restore blood circulation and breathing. |
12 | $143 | $238 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
12 | $138 | $663 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
0.4% high complexity
3.1% medium
96.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$4,582
Total received (2018-2024)
Avg $764/year across 6 years
Top 17% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
22
Companies
170
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$4,360 (95.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$222 (4.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,465
2023
$1,781
2022
$703
2021
$406
2019
$114
2018
$114
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Regeneron Healthcare Solutions, Inc.
$309
Itamar Medical Inc
$240
GENZYME CORPORATION
$163
Actelion Pharmaceuticals US, Inc.
$142
AstraZeneca Pharmaceuticals LP
$142
Mylan Specialty L.P.
$139
Boehringer Ingelheim Pharmaceuticals, Inc.
$102
GlaxoSmithKline, LLC.
$59
Takeda Pharmaceuticals U.S.A., Inc.
$57
Amgen Inc.
$41
Grifols USA, LLC
$28
Insmed, Inc.
$24
Resmed Corp
$18
Top 3 companies account for 48.6% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$743
Regeneron Healthcare Solutions, Inc.
$726
GlaxoSmithKline, LLC.
$631
Boehringer Ingelheim Pharmaceuticals, Inc.
$459
Mylan Specialty L.P.
$379
Itamar Medical Inc
$356
Actelion Pharmaceuticals US, Inc.
$250
Teva Pharmaceuticals USA, Inc.
$228
GENZYME CORPORATION
$181
Janssen Pharmaceuticals, Inc
$144
Grifols USA, LLC
$104
Amgen Inc.
$92
SANOFI-AVENTIS U.S. LLC
$80
Takeda Pharmaceuticals U.S.A., Inc.
$57
IDORSIA PHARMACEUTICALS US INC
$28
Gilead Sciences, Inc.
$27
Insmed, Inc.
$24
Vapotherm Inc
$20
Resmed Corp
$18
Philips Electronics North America Corporation
$16
BOSTON SCIENTIFIC CORPORATION
$14
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$5
Top 3 companies account for 45.8% of all-time payments
Associated products mentioned in payments ›
(8874) inCourage · AIRSENSE · AIRSUPRA · Arikayce · BREZTRI · CINQAIR · DUPIXENT · FARXIGA · FASENRA · GENERAL PAIN MANAGEMENT · GLASSIA · LifeVest · NUCALA · OFEV · OPSUMIT · Prolastin-C Liquid · QUVIVIQ · TEZSPIRE · TRELEGY ELLIPTA · UPTRAVI · VAPOTHERM · WatchPATONE · XARELTO · YUPELRI · Yupelri
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (95%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Internal medicine physicians within 10 mi
405
Per 100K population
51.4
County median income
$88,531
Nearest hospital
DOCTORS HOSPITAL OF MANTECA
0.0 mi
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. Ahmed is a clinical cardiology specialist, with above-average Medicare volume (top 7% in CA), with low-engagement industry engagement in the top 17% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Ahmed experienced with hyperbaric oxygen therapy, full body chamber?
Based on Medicare claims data, Dr. Ahmed performed 1,269 hyperbaric oxygen therapy, full body chamber services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Ahmed receive payments from pharmaceutical companies?
Yes. Dr. Ahmed received a total of $4,582 from 22 companies across 170 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Ahmed's costs compare to other internal medicine physicians in Manteca?
Dr. Ahmed's average Medicare payment per service is $105. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Ahmed) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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.
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