Medicare Enrolled
Dr. Ryan Mathew, M.D.
Rheumatology · Kennesaw, GA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Mathew 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. Mathew?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Mathew
Dr. Ryan Mathew is a rheumatology specialist in Kennesaw, GA, with 10 years of NPI registration. Based on federal Medicare data, Dr. Mathew performed 19,813 Medicare services across 3,323 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mathew received a total of $9,304 from 25 pharmaceutical and/or device companies across 370 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. Mathew 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.
✓ 10 years in practice
▲ Top 25% volume in GA
$9,304 industry payments
Medicare Practice Summary
Medicare Utilization ↗19,813
Medicare services
Top 25% in GA for rheumatology
3,323
Unique beneficiaries
$16
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,981 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 |
|---|---|---|---|
| Certolizumab injection (Cimzia) An injection of certolizumab pegol administered under the direct supervision of a physician. |
9,000 | $4 | $11 |
| Denosumab injection (Prolia/Xgeva) | 3,120 | $18 | $30 |
| Abatacept infusion (Orencia) An injection of abatacept administered under the direct supervision of a physician. This code is used for Medicare when the drug is not self-administered. |
1,525 | $34 | $68 |
| Infliximab infusion (Remicade) An injection of infliximab, excluding biosimilar versions, administered in a 10 mg dose. |
810 | $26 | $110 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
507 | $10 | $28 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
440 | $8 | $18 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
436 | $4 | $10 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
436 | $5 | $20 |
| 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. |
358 | $84 | $174 |
| Autoimmune disorder antibody test A laboratory test that measures antibodies in the blood to help assess for autoimmune disorders. |
322 | $17 | $32 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
229 | $8 | $12 |
| Complement and antigen measurement A laboratory test to measure levels of complement proteins and antigens in the blood. |
220 | $12 | $33 |
| X-ray of hand, minimum of 3 views An X-ray imaging test of the hand that captures at least three different angles to visualize the bones and joints. |
209 | $23 | $68 |
| Wrist X-ray, 2 views An X-ray imaging test of the wrist using two different angles to visualize the bones and joints. |
170 | $21 | $65 |
| 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. |
153 | $10 | $30 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
146 | $29 | $61 |
| Tuberculosis test, enumeration of t-cells A blood test that counts T-cells to help detect tuberculosis infection. |
144 | $97 | $132 |
| 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. |
131 | $119 | $229 |
| Drug screening test A laboratory test that uses a chemistry analyzer to detect the presence of drugs in a sample. |
122 | $60 | $100 |
| 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. |
98 | $111 | $225 |
| Rheumatoid factor level | 92 | $6 | $18 |
| Rheumatoid arthritis antibody test A blood test to measure antibodies used in assessing rheumatoid arthritis. |
89 | $13 | $28 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
85 | $6 | $20 |
| Complete ultrasound scan of joint An ultrasound exam that uses sound waves to create detailed images of a joint. This procedure allows for the visualization of the joint's internal structures. |
83 | $38 | $193 |
| 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. |
78 | $45 | $81 |
| 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. |
75 | $59 | $124 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
73 | $2 | $10 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
62 | $1 | $13 |
| X-ray of foot, 2 views An X-ray imaging test of the foot using two different angles to create pictures of the bones and joints. |
52 | $19 | $60 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
49 | $91 | $240 |
| X-ray of ankle, 2 views An X-ray imaging test of the ankle using two different angles to visualize the bones and joints. |
48 | $22 | $110 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
48 | $20 | $120 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
47 | $4 | $10 |
| 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. |
46 | $15 | $65 |
| DNA antibody test (native or double-stranded) A blood test that measures the level of antibodies targeting native or double-stranded DNA. This test is used to detect the presence of these specific antibodies in the body. |
46 | $13 | $35 |
| Measurement of dna antibody, single stranded | 46 | $12 | $15 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
42 | $4 | $8 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
39 | $45 | $150 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
37 | $11 | $60 |
| Injection, methylprednisolone acetate, 40 mg | 24 | $6 | $15 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
21 | $6 | $17 |
| New patient office visit, complex (60-74 min) | 20 | $150 | $264 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
12 | $54 | $160 |
| Diphenhydramine injection, up to 50 mg An injection of diphenhydramine hydrochloride, an antihistamine medication, administered in a dose of up to 50 milligrams. |
12 | $1 | $6 |
| Manual white blood cell count A laboratory test that involves examining a sample under a microscope to manually count the number of white blood cells present. |
11 | $4 | $5 |
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.
12.2% high complexity
64.0% medium
23.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$9,304
Total received (2018-2024)
Avg $1,861/year across 5 years
Top 38% in GA for rheumatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
25
Companies
370
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
$9,304 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$4,343
2023
$3,791
2022
$915
2019
$120
2018
$134
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$939
Amgen Inc.
$480
Novartis Pharmaceuticals Corporation
$409
Janssen Biotech, Inc.
$406
UCB, Inc.
$392
AstraZeneca Pharmaceuticals LP
$239
GlaxoSmithKline, LLC.
$208
Mallinckrodt Hospital Products Inc.
$182
Boehringer Ingelheim Pharmaceuticals, Inc.
$179
ANI Pharmaceuticals, Inc.
$152
E.R. Squibb & Sons, L.L.C.
$151
Janssen Scientific Affairs, LLC
$123
Kyowa Kirin, Inc.
$121
Lilly USA, LLC
$121
Aurinia Pharma U.S., Inc.
$80
Radius Health, Inc.
$54
Alexion Pharmaceuticals, Inc.
$34
PFIZER INC.
$29
Organon Llc
$29
Genentech USA, Inc.
$16
Top 3 companies account for 42.1% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$2,056
Amgen Inc.
$983
Mallinckrodt Hospital Products Inc.
$789
UCB, Inc.
$740
Janssen Biotech, Inc.
$716
Novartis Pharmaceuticals Corporation
$597
AstraZeneca Pharmaceuticals LP
$501
GlaxoSmithKline, LLC.
$479
Lilly USA, LLC
$286
ANI Pharmaceuticals, Inc.
$285
Boehringer Ingelheim Pharmaceuticals, Inc.
$251
E.R. Squibb & Sons, L.L.C.
$243
GENZYME CORPORATION
$202
Aurinia Pharma U.S., Inc.
$183
Alexion Pharmaceuticals, Inc.
$177
PORTOLA PHARMACEUTICALS, INC.
$134
Janssen Scientific Affairs, LLC
$123
Kyowa Kirin, Inc.
$121
Mallinckrodt Enterprises LLC
$120
Horizon Therapeutics plc
$111
Radius Health, Inc.
$108
Genentech USA, Inc.
$30
PFIZER INC.
$29
Organon Llc
$29
Boston Scientific Corporation
$13
Top 3 companies account for 41.1% of all-time payments
Associated products mentioned in payments ›
ACTHAR · Actemra · BENLYSTA · BEVYXXA · Bimzelx · COSENTYX · Cimzia · EVENITY · Enbrel · HADLIMA · HUMIRA · Infinion 16 · KEVZARA · KRYSTEXXA · LUPKYNIS · OFEV · ORENCIA · Otezla · PURIFIED CORTROPHIN GEL · REMICADE · RENFLEXIS · RINVOQ · SAPHNELO · SIMPONI ARIA · SKYRIZI · STRENSIQ · TALTZ · TAVNEOS · TREMFYA · Tymlos · XELJANZ
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.
Geographic Context
Rheumatologists within 10 mi
73
Per 100K population
9.5
County median income
$98,712
Nearest hospital
WELLSTAR KENNESTONE REGIONAL MEDICAL CENTER
8.5 mi
8.5 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. Mathew is a mixed practice specialist, with above-average Medicare volume (top 25% in GA), with low-engagement industry engagement.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Mathew experienced with certolizumab injection (cimzia)?
Based on Medicare claims data, Dr. Mathew performed 9,000 certolizumab injection (cimzia) 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. Mathew receive payments from pharmaceutical companies?
Yes. Dr. Mathew received a total of $9,304 from 25 companies across 370 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. Mathew's costs compare to other rheumatologists in Kennesaw?
Dr. Mathew's average Medicare payment per service is $16. 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. Mathew) 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 →
Explore related providers
Same specialty & city
Rheumatologists in Kennesaw
Browse rheumatologists in Kennesaw ranked by procedure volume and transparency data.
Highest volume
Top Rheumatologists in GA
Rheumatologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Rheumatologists in GA
Which GA rheumatologists receive the most from drug and device companies.
By company
ABBVIE INC. Payments to Doctors
See all physicians who received payments from ABBVIE INC.
By company
Amgen Inc. Payments to Doctors
See all physicians who received payments from Amgen Inc.
By company
Mallinckrodt Hospital Products Inc. Payments to Doctors
See all physicians who received payments from Mallinckrodt Hospital Products Inc.
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