Medicare Enrolled
Dr. Christopher Green, M.D.
Internal Medicine · Alton, IL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Green 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. Green
Dr. Christopher Green is an internal medicine specialist in Alton, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Green performed 2,178 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Green received a total of $37,005 from 71 pharmaceutical and/or device companies across 1132 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Green 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.
✓ 20 years of NPI registration
▲ Top 15% volume in IL
$37,005 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,178
Medicare services
Top 15% in IL for internal medicine
Not available
Unique patients (not deduplicated)
$79
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| 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. |
790 | $87 | $165 |
| 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. |
300 | $55 | $115 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
293 | $126 | $250 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
119 | $89 | $135 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
87 | $10 | $75 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
85 | $15 | $54 |
| Bone density scan (DEXA) of hip, pelvis, and spine This test measures bone density in the hip, pelvis, and spine to assess bone strength. It also includes an assessment for spine fractures. |
66 | $49 | $85 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
49 | $20 | $65 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
44 | $30 | $59 |
| Pneumococcal vaccine, 23-valent A vaccine that protects against 23 types of pneumococcal bacteria. It is used to prevent infections caused by these bacteria. |
32 | $131 | $200 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
32 | $10 | $95 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
31 | $30 | $35 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
28 | $140 | $210 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
27 | $75 | $85 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
26 | $63 | $110 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
25 | $208 | $300 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
24 | $22 | $85 |
| X-ray of lower and sacral spine, minimum 6 views An X-ray imaging test that captures at least six views of the lower back and sacral spine to evaluate bone structure and alignment. |
22 | $36 | $220 |
| Pneumococcal conjugate vaccine (PCV20) An intramuscular injection of the 20-valent pneumococcal conjugate vaccine. It is used to protect against diseases caused by Streptococcus pneumoniae bacteria. |
22 | $269 | $355 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
20 | $15 | $38 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
15 | $23 | $110 |
| 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. |
15 | $114 | $240 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
15 | $159 | $250 |
| X-ray of middle spine, 2 views An X-ray imaging test that produces two views of the middle section of the spine to visualize the bones and joints. |
11 | $19 | $110 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$37,005
Total received (2018-2024)
Avg $5,286/year across 7 years
Top 2% in IL for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
71
Companies
1,132
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,456
2023
$2,968
2022
$3,263
2021
$23,038
2020
$2,091
2019
$1,660
2018
$1,530
Payments by company (2024)
AstraZeneca Pharmaceuticals LP
$240
ABBVIE INC.
$217
Amgen Inc.
$198
Lilly USA, LLC
$166
Novo Nordisk Inc
$165
Novartis Pharmaceuticals Corporation
$164
GlaxoSmithKline, LLC.
$145
Janssen Pharmaceuticals, Inc
$136
Insulet Corporation
$114
Radius Health, Inc.
$97
Xeris Pharmaceuticals, Inc.
$93
Merck Sharp & Dohme LLC
$80
Verity Pharmaceuticals Inc.
$73
Esperion Therapeutics, Inc.
$72
Sumitomo Pharma America, Inc.
$69
Boehringer Ingelheim Pharmaceuticals, Inc.
$67
Antares Pharma, Inc.
$57
Eisai Inc.
$50
Mirum Pharmaceuticals, Inc.
$49
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$47
Azurity Pharmaceuticals, Inc.
$46
PFIZER INC.
$35
Lundbeck LLC
$21
Exact Sciences Corporation
$17
E.R. Squibb & Sons, L.L.C.
$16
Alnylam Pharmaceuticals Inc.
$14
SPR Therapeutics, Inc
$8
Top 3 companies account for 26.7% of 2024 payments
All-time payments by company (2018-2024) ›
Novo Nordisk Inc
$21,405
Amgen Inc.
$1,698
Lilly USA, LLC
$1,312
ABBVIE INC.
$1,194
AstraZeneca Pharmaceuticals LP
$848
Novartis Pharmaceuticals Corporation
$813
PFIZER INC.
$667
Janssen Pharmaceuticals, Inc
$643
Amarin Pharma Inc.
$627
EISAI INC.
$530
AbbVie Inc.
$490
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$473
GlaxoSmithKline, LLC.
$418
Antares Pharma, Inc.
$386
Biogen, Inc.
$377
Merck Sharp & Dohme LLC
$373
Corcept Therapeutics
$372
Allergan, Inc.
$293
Abbott Laboratories
$289
Esperion Therapeutics, Inc.
$282
Boehringer Ingelheim Pharmaceuticals, Inc.
$263
SANOFI-AVENTIS U.S. LLC
$216
Radius Health, Inc.
$214
Merck Sharp & Dohme Corporation
$204
Bayer Healthcare Pharmaceuticals Inc.
$181
Takeda Pharmaceuticals U.S.A., Inc.
$181
Supernus Pharmaceuticals, Inc.
$129
Insulet Corporation
$129
Lundbeck LLC
$122
Astellas Pharma US Inc
$119
Exact Sciences Corporation
$109
Sumitomo Pharma America, Inc.
$103
Axsome Therapeutics, Inc.
$102
E.R. Squibb & Sons, L.L.C.
$101
Acerus Pharmaceuticals Corporation
$94
Xeris Pharmaceuticals, Inc.
$93
Bayer HealthCare Pharmaceuticals Inc.
$93
Otsuka America Pharmaceutical, Inc.
$83
Verity Pharmaceuticals Inc.
$73
Eisai Inc.
$62
Almatica Pharma LLC
$61
Azurity Pharmaceuticals, Inc.
$58
Allergan Inc.
$53
Alnylam Pharmaceuticals Inc.
$52
Mirum Pharmaceuticals, Inc.
$49
Biohaven Pharmaceutical Holding Company Ltd.
$46
Sentynl Therapeutics, Inc.
$41
Kowa Pharmaceuticals America, Inc.
$33
Ironwood Pharmaceuticals, Inc
$33
Biohaven Pharmaceuticals, Inc.
$29
DePuy Synthes Sales Inc.
$29
US WorldMeds, LLC
$27
AbbVie, Inc.
$25
VBI Vaccine (Delaware) Inc.
$24
Avanos Medical
$24
VBI Vaccines (Delaware) Inc.
$23
Alexion Pharmaceuticals, Inc.
$23
Clarus Therapeutics Inc.
$22
Medtronic, Inc.
$22
RECORDATI_RARE_DISEASES_INC.
$21
Horizon Therapeutics plc
$18
Daiichi Sankyo Inc.
$16
Medtronic MiniMed, Inc.
$15
IMPEL PHARMACEUTICALS INC.
$15
Melinta Therapeutics, Inc.
$15
Kaleo, Inc.
$14
Apria Healthcare LLC
$13
Avanir Pharmaceuticals, Inc.
$13
Axonics Modulation Technologies, Inc.
$12
Purdue Pharma L.P.
$11
SPR Therapeutics, Inc
$8
Top 3 companies account for 66.0% of all-time payments
Associated products mentioned in payments ›
ADUHELM · AIMOVIG · AIRSUPRA · ANORO · AREXVY · AVYCAZ · Aduhelm · Aimovig · Auvelity · Axonics r-SNM System · BASAGLAR · BELSOMRA · BOTOX · BREO · BREZTRI · BREZTRI AEROSPHERE · BYDUREON · Baxdela · CHANTIX · COLOGUARD · CREON · Cholbam · Cologuard Collection Kit · Creon · DALVANCE · ELIQUIS · EMGALITY · ENTRESTO · EVENITY · EVZIO · FARXIGA · FORTEO · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Freedom Lite system · FreeStyle Libre · FreeStyle Libre 2 · FreeStyle Lite system · GEMTESA · GENVISC 850 SODIUM HYALURONATE · GIVLAARI · GRALISE · GVOKE HYPOPEN · HORIZANT · Horizant · INTELLIS ADAPTIVESTIM · INVOKANA · InPen · JANUVIA · JARDIANCE · JATENZO · Kerendia · Korlym · LEQVIO · LINZESS · LIVALO · LYRICA · Leqembi · Levorphanol Tartrate · Linzess · Lucemyra/Lofexidine · MOUNJARO · MYRBETRIQ · Medela · Morphabond ER · Myrbetriq · NEXLETOL · NEXLIZET · NOCDURNA · NUCALA · NUEDEXTA · NURTEC ODT · Natesto · Omnipod · Otezla · Ozempic · PEAK · PENNSAID · PREMARIN · PREVNAR - 13 · PROCLAIM · PreHevbrio · Prolia · QULIPTA · REXULTI · REYVOW · RYBELSUS · Rybelsus · SEGLENTIS · SHINGRIX · SIGNIFOR LAR · SOLIQUA · SOLIQUA 100/33 · SPIRIVA RESPIMAT · SPRAVATO · SPRINT PNS System · STRENSIQ · SYMBICORT · SYNTHROID · Saxenda · Synthroid · TEFLARO · TLANDO · TOUJEO · TRELEGY ELLIPTA · TRINTELLIX · TROKENDI XR · TRULANCE · TRULICITY · Tlando · Tresiba · Trintellix · Trudhesa · Tymlos · UBRELVY · VERQUVO · VIBERZI · VRAYLAR · VYVANSE · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XIFAXAN · XYOSTED
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Internal medicine physicians in nearby ZIP areas
1,132
County median income
$74,800
Nearest hospital to ZIP centroid (approximate)
ALTON MEMORIAL HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Green is a clinical cardiology specialist, with above-average Medicare volume (top 15% in IL), with 20 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. Green experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Green performed 790 office visit, established patient (30-39 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Green receive payments from pharmaceutical companies?
Yes. Dr. Green received a total of $37,005 from 71 companies across 1,132 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Green's costs compare to other internal medicine physicians in Alton?
Dr. Green's average Medicare payment per service is $79. 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. Green) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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