Medicare Enrolled
Dr. Kevin Kempf, MD
Rheumatology · San Antonio, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Kempf 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. Kempf
Dr. Kevin Kempf is a rheumatology specialist in San Antonio, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Kempf performed 290,070 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Kempf received a total of $118,964 from 56 pharmaceutical and/or device companies across 1279 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. Kempf 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 1% volume in TX
$118,964 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗290,070
Medicare services
Top 1% in TX for rheumatology
Not available
Unique patients (not deduplicated)
$12
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 |
|---|---|---|---|
| Tocilizumab injection (Actemra) | 84,984 | $4 | $17 |
| Certolizumab injection (Cimzia) An injection of certolizumab pegol administered under the direct supervision of a physician. |
84,800 | $4 | $19 |
| Golimumab infusion (Simponi Aria) Administration of golimumab medication directly into a vein. This code specifies the dosage amount of 1 milligram for intravenous delivery. |
39,659 | $11 | $48 |
| 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. |
39,600 | $33 | $134 |
| Denosumab injection (Prolia/Xgeva) | 8,040 | $18 | $42 |
| Infliximab infusion (Remicade) An injection of infliximab, excluding biosimilar versions, administered in a 10 mg dose. |
6,921 | $25 | $114 |
| Rituximab injection, 10 mg Administration of a 10 mg dose of rituximab medication via injection. |
4,152 | $62 | $257 |
| Infliximab-abda biosimilar injection, 10 mg This code represents the administration of a 10 mg dose of infliximab-abda, a biosimilar medication. It covers the injection of this specific pharmaceutical product. |
3,350 | $30 | $119 |
| Autoimmune disorder antibody test A laboratory test that measures antibodies in the blood to help assess for autoimmune disorders. |
2,335 | $17 | $44 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,496 | $10 | $26 |
| 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. |
1,440 | $8 | $20 |
| 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. |
1,434 | $5 | $14 |
| Sed rate test (inflammation marker) This automated test measures how quickly red blood cells settle in a tube to detect inflammation in the body. |
1,278 | $3 | $6 |
| 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. |
1,229 | $89 | $253 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
1,193 | $99 | $399 |
| Extended-release steroid injection (Zilretta) An injection of triamcinolone acetonide using a preservative-free, extended-release microsphere formulation. The dosage is measured in milligrams. |
1,120 | $13 | $42 |
| Immunoassay substance analysis, multiple step method A laboratory test that uses an immunoassay technique to analyze a substance. The process involves multiple steps to detect or measure the target material. |
815 | $11 | $28 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
564 | $56 | $222 |
| Measurement of dna antibody, single stranded | 438 | $12 | $29 |
| 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. |
437 | $13 | $35 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
436 | $29 | $72 |
| Rheumatoid arthritis antibody test A blood test to measure antibodies used in assessing rheumatoid arthritis. |
412 | $13 | $32 |
| Rheumatoid factor level | 410 | $5 | $15 |
| Cardiolipin antibody (tissue antibody) measurement | 375 | $24 | $63 |
| Complement and antigen measurement A laboratory test to measure levels of complement proteins and antigens in the blood. |
374 | $12 | $29 |
| Beta 2 glycoprotein 1 antibody (autoantibody) measurement | 372 | $24 | $63 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
273 | $21 | $85 |
| Immunoassay substance measurement A laboratory test that uses immunoassay techniques to measure the level of a specific substance in a sample. |
243 | $17 | $39 |
| 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. |
182 | $4 | $12 |
| Hyaluronan injection (Euflexxa) for joint An injection of hyaluronan or its derivative, specifically Euflexxa, administered directly into a joint space. |
172 | $95 | $311 |
| 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. |
164 | $92 | $300 |
| 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. |
147 | $6 | $17 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
126 | $14 | $38 |
| 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. |
122 | $122 | $497 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
115 | $14 | $37 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
115 | $16 | $42 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
109 | $11 | $47 |
| Methylprednisolone injection, up to 40 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, administered in a dose of up to 40 mg. |
87 | $3 | $13 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
80 | $13 | $35 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
79 | $8 | $22 |
| Injection, methylprednisolone acetate, 40 mg | 79 | $6 | $15 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
58 | $4 | $18 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
43 | $30 | $61 |
| 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. |
41 | $65 | $166 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
39 | $73 | $75 |
| 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. |
38 | $128 | $331 |
| Methylprednisolone acetate injection, 80 mg An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication. |
31 | $9 | $28 |
| Methylprednisolone acetate injection, 20 mg A 20 mg injection of methylprednisolone acetate, a corticosteroid medication. This code specifies the drug and dosage administered. |
24 | $3 | $4 |
| 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. |
22 | $10 | $42 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
17 | $53 | $146 |
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.
30.1% high complexity
64.8% medium
5.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$118,964
Total received (2018-2024)
Avg $16,995/year across 7 years
Top 6% in TX for rheumatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
56
Companies
1,279
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
$3,744
2023
$3,327
2022
$10,901
2021
$3,065
2020
$10,880
2019
$46,373
2018
$40,674
Payments by company (2024)
Amgen Inc.
$821
Janssen Biotech, Inc.
$497
UCB, Inc.
$425
Novartis Pharmaceuticals Corporation
$415
Lilly USA, LLC
$243
Mallinckrodt Hospital Products Inc.
$151
Johnson & Johnson Health Care Systems Inc.
$150
PFIZER INC.
$139
ABBVIE INC.
$123
GENZYME CORPORATION
$121
Fresenius Kabi USA, LLC
$96
GlaxoSmithKline, LLC.
$94
Radius Health, Inc.
$78
ANI Pharmaceuticals, Inc.
$76
E.R. Squibb & Sons, L.L.C.
$76
Boehringer Ingelheim Pharmaceuticals, Inc.
$75
Teva Pharmaceuticals USA, Inc.
$31
AstraZeneca Pharmaceuticals LP
$29
SCILEX PHARMACEUTICALS INC.
$29
Aurinia Pharma U.S., Inc.
$24
Ultragenyx Pharmaceutical Inc.
$22
Ferring Pharmaceuticals Inc.
$14
SHIELD THERAPEUTICS INC
$13
Top 3 companies account for 46.6% of 2024 payments
All-time payments by company (2018-2024) ›
Celgene Corporation
$48,585
GlaxoSmithKline, LLC.
$18,188
Amgen Inc.
$13,115
UCB, Inc.
$7,745
Novartis Pharmaceuticals Corporation
$7,534
GENZYME CORPORATION
$5,638
Horizon Therapeutics plc
$4,346
Janssen Biotech, Inc.
$1,481
Lilly USA, LLC
$1,450
Mallinckrodt Hospital Products Inc.
$1,257
E.R. Squibb & Sons, L.L.C.
$1,156
PFIZER INC.
$1,096
Genentech USA, Inc.
$954
Radius Health, Inc.
$670
Regeneron Healthcare Solutions, Inc.
$630
Flexion Therapeutics, Inc.
$579
SANOFI-AVENTIS U.S. LLC
$551
Aurinia Pharma U.S., Inc.
$479
Ferring Pharmaceuticals Inc.
$398
Horizon Pharma plc
$331
AstraZeneca Pharmaceuticals LP
$303
Merck Sharp & Dohme Corporation
$245
Boehringer Ingelheim Pharmaceuticals, Inc.
$241
ANI Pharmaceuticals, Inc.
$206
Pacira Therapeutics, Inc.
$195
Johnson & Johnson Health Care Systems Inc.
$150
Actelion Pharmaceuticals US, Inc.
$149
ABBVIE INC.
$123
AbbVie, Inc.
$112
Hikma Pharmaceuticals USA
$100
Antares Pharma, Inc.
$98
Fresenius Kabi USA, LLC
$96
Mallinckrodt Enterprises LLC
$88
Exeltis, USA Inc.
$86
Teva Pharmaceuticals USA, Inc.
$46
Bayer HealthCare Pharmaceuticals Inc.
$45
Takeda Pharmaceuticals U.S.A., Inc.
$45
Ultragenyx Pharmaceutical Inc.
$44
Organon LLC
$43
Sandoz Inc.
$36
Alexion Pharmaceuticals, Inc.
$33
Mallinckrodt LLC
$31
Nevro Corp.
$31
SCILEX PHARMACEUTICALS INC.
$29
Bioventus LLC
$29
Oxford Immunotec USA Inc
$26
MEDEXUS PHARMA, INC.
$23
Octapharma USA, Inc.
$20
FIDIA PHARMA USA INC.
$17
Ironwood Pharmaceuticals, Inc
$16
Endo Pharmaceuticals Inc.
$13
Kiniksa Pharmaceuticals, Ltd.
$13
SHIELD THERAPEUTICS INC
$13
Cumberland Pharmaceuticals, Inc.
$12
Janssen Scientific Affairs, LLC
$11
MEDAC PHARMA, INC.
$11
Top 3 companies account for 67.2% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · ACTHAR · AMJEVITA · AREXVY · AVSOLA · Actemra · Adempas · Arcalyst · BELSOMRA · BENLYSTA · BEXSERO · Bimzelx · COSENTYX · CYLTEZO · Cimzia · Crysvita · DUZALLO · Durolane · EUFLEXXA · EVENITY · Enbrel · Entyvio · FORTEO · HADLIMA · HYRIMOZ · Humira · Hymovis · IDACIO · INFLECTRA · KEVZARA · KEVZARA SARILUMAB INJECTION · KRYSTEXXA · LUPKYNIS · LYRICA · Mitigare · NASCOBAL · OCTAGAM IMMUNE GLOBULIN (HUMAN) · OFEV · ONTRUZANT · OPSUMIT · ORENCIA · OTREXUP · Otezla · Otrexup · PENNSAID · PREVNAR 13 · PREVNAR 20 · PURIFIED CORTROPHIN GEL · Prolia · RAYOS · REDITREX · REMICADE · RENFLEXIS · RHEUMATOID ARTHRITIS DISEASE · Rasuvo · Rituxan · SAPHNELO · SIMLANDI · SIMPONI · SIMPONI ARIA · SKYRIZI · SYNVISC-ONE · Senza · TALTZ · TAVNEOS · TREMFYA · TSPOT TB TEST · Tavneos · Truxima · Tymlos · UPTRAVI · Uloric · Ultomiris · XELJANZ · ZTLido · Zilretta
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
Rheumatologists in nearby ZIP areas
50
County median income
$70,571
Nearest hospital to ZIP centroid (approximate)
SOUTH TEXAS SPINE AND SURGICAL 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. Kempf is a mixed practice specialist, with above-average Medicare volume (top 1% in TX), 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. Kempf experienced with tocilizumab injection (actemra)?
Based on Medicare claims data, Dr. Kempf performed 84,984 tocilizumab injection (actemra) 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. Kempf receive payments from pharmaceutical companies?
Yes. Dr. Kempf received a total of $118,964 from 56 companies across 1,279 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. Kempf's costs compare to other rheumatologists in San Antonio?
Dr. Kempf's average Medicare payment per service is $12. 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. Kempf) 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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