Medicare Enrolled

Dr. Charles Geringer, M.D.

Rheumatology · Olympia Fields, IL
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
3700 W 203RD ST STE 209, Olympia Fields, IL 60461
7086792884
In practice since 2006 (20 years)
NPI: 1235195702 verify on NPPES ↗
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. Geringer 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 →
Are you Dr. Geringer? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Geringer

Dr. Charles Geringer is a rheumatology specialist in Olympia Fields, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Geringer performed 563 Medicare services across 434 unique beneficiaries.

Between the years covered by Open Payments, Dr. Geringer received a total of $18,113 from 45 pharmaceutical and/or device companies across 790 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in rheumatology. 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. Geringer 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 in practice ▲ 563 Medicare services $18,113 industry payments

Medicare Practice Summary

Medicare Utilization ↗
563
Medicare services
Bottom 38% in IL for rheumatology
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
434
Unique beneficiaries
$66
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~28 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
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.
178 $67 $180
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.
145 $87 $250
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.
63 $63 $142
Methylprednisolone acetate injection, 80 mg
An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication.
58 $9 $24
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.
34 $11 $44
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.
28 $119 $360
Joint injection, major joint
Removal of fluid from a large joint and/or injection of medication into the joint space.
26 $66 $199
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.
17 $100 $240
New patient office visit (30-44 min)
An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range.
14 $80 $242
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.

Industry Payment Transparency

Open Payments through 2024 ↗
$18,113
Total received (2018-2024)
Avg $2,588/year across 7 years
Top 14% in IL for rheumatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
45
Companies
790
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
$18,063 (99.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$51 (0.3%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$2,615
2023
$3,467
2022
$3,067
2021
$1,788
2020
$1,434
2019
$3,134
2018
$2,608

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Amgen Inc.
$657
PFIZER INC.
$615
ABBVIE INC.
$322
Janssen Biotech, Inc.
$199
ANI Pharmaceuticals, Inc.
$124
E.R. Squibb & Sons, L.L.C.
$117
Novartis Pharmaceuticals Corporation
$92
Lilly USA, LLC
$70
Boehringer Ingelheim Pharmaceuticals, Inc.
$59
Kyowa Kirin, Inc.
$46
Biocon Biologics Inc
$42
UCB, Inc.
$36
Mallinckrodt Hospital Products Inc.
$35
Organon Llc
$34
SOBI, INC
$34
Sandoz Inc.
$33
AstraZeneca Pharmaceuticals LP
$29
Aurinia Pharma U.S., Inc.
$25
Kiniksa Pharmaceuticals International, plc
$16
Fresenius Kabi USA, LLC
$16
Genentech USA, Inc.
$14
Top 3 companies account for 61.0% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$3,211
PFIZER INC.
$2,338
ABBVIE INC.
$1,264
Novartis Pharmaceuticals Corporation
$1,231
Janssen Biotech, Inc.
$1,147
E.R. Squibb & Sons, L.L.C.
$829
AbbVie, Inc.
$792
Celgene Corporation
$679
Boehringer Ingelheim Pharmaceuticals, Inc.
$665
Horizon Therapeutics plc
$609
AstraZeneca Pharmaceuticals LP
$564
Lilly USA, LLC
$546
GlaxoSmithKline, LLC.
$506
Mallinckrodt Hospital Products Inc.
$455
UCB, Inc.
$414
AbbVie Inc.
$392
Antares Pharma, Inc.
$292
Alexion Pharmaceuticals, Inc.
$222
ANI Pharmaceuticals, Inc.
$180
Genentech USA, Inc.
$177
Mallinckrodt Enterprises LLC
$118
GENZYME CORPORATION
$117
Mallinckrodt LLC
$117
Kyowa Kirin, Inc.
$114
Fresenius Kabi USA, LLC
$111
Janssen Scientific Affairs, LLC
$100
Exeltis, USA Inc.
$100
SOBI, INC
$96
Ultragenyx Pharmaceutical Inc.
$94
Actelion Pharmaceuticals US, Inc.
$77
Horizon Pharma plc
$76
Merck Sharp & Dohme Corporation
$68
MEDEXUS PHARMA, INC.
$62
Aurinia Pharma U.S., Inc.
$50
Sandoz Inc.
$48
Biocon Biologics Inc
$42
Mylan Institutional Inc.
$35
Organon Llc
$34
Organon LLC
$33
Kiniksa Pharmaceuticals, Ltd.
$24
Zyla Life Sciences
$21
Zyla Life Sciences, Inc.
$21
Celltrion USA Inc.
$17
Kiniksa Pharmaceuticals International, plc
$16
Ferring Pharmaceuticals Inc.
$11
Top 3 companies account for 37.6% of all-time payments
Associated products mentioned in payments ›
ACTHAR · AMJEVITA · Actemra · Arcalyst · BENLYSTA · COSENTYX · CYLTEZO · Cimzia · Crysvita · Cryvista · EUFLEXXA · EVENITY · EVUSHELD · Enbrel · HADLIMA · HUMIRA · HYRIMOZ · Hulio · Humira · IDACIO · KEVZARA · KINERET · KRYSTEXXA · Kineret · LUPKYNIS · LYRICA · OFEV · OPSUMIT · ORENCIA · OTREXUP · Otezla · Otrexup · PENNSAID · PURIFIED CORTROPHIN GEL · Prolia · REMICADE · RENFLEXIS · RINVOQ · Rasuvo · Rituxan · SAPHNELO · SIMPONI · SIMPONI ARIA · SKYRIZI · STELARA · STRENSIQ · TALTZ · TAVNEOS · TREMFYA · Tavneos · XELJANZ · XYOSTED · YUFLYMA · ZORVOLEX
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for a rheumatology specialist in Olympia Fields?
Compare rheumatologists in the Olympia Fields area by procedure volume, costs, and industry payment transparency.
Browse rheumatologists nearby

Geographic Context

Rheumatologists within 10 mi
88
Per 100K population
1.7
County median income
$81,797
Nearest hospital
FRANCISCAN HEALTH OLYMPIA & CHICAGO HEIGHTS
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. Geringer is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 14% of IL peers, 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. Geringer experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Geringer performed 178 office visit, established patient (20-29 min) 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. Geringer receive payments from pharmaceutical companies?
Yes. Dr. Geringer received a total of $18,113 from 45 companies across 790 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. Geringer's costs compare to other rheumatologists in Olympia Fields?
Dr. Geringer's average Medicare payment per service is $66. 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. Geringer) 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 →
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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →