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Dr. Robert J. Koval JR., MD

Rheumatology (Rheumatology Physician)

  • Medicare participating

At a glance

Years since graduation
21
In the NPI registry since
2007
Medicare patients seen, 2024
537

Licensed in Colorado since 2008, according to the Colorado Department of Regulatory Agencies. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Rheumatology Physician primary
    TX license N9084 (first issued 2011; active)
  • Internal Medicine Physician
    CO license 46741 (first issued 2008; expired)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Rheumatology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
537
Services billed
207,154
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)92,80023
Injection, romosozumab-aqqg, 1 mg22,68015
Injection, denosumab, 1 mg11,104111
Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)9,67517
Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle819144
Established patient office or other outpatient visit, 30-39 minutes739408
Injection, triamcinolone acetonide, not otherwise specified, 10 mg42156
Administration of chemotherapy into vein, 1 hour or less27837
New patient office or other outpatient visit, 45-59 minutes109109
Established patient office or other outpatient visit, 20-29 minutes9784

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 18 companies reported 295 payments worth $88,025 in total to this clinician.

By type
Compensation for services other than consulting (speaking, faculty)$64,643
Travel and Lodging$15,014
Food and Beverage$5,775
Consulting Fee$2,455
Education$138

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Jun 28, 2025Janssen Biotech, Inc.
Jun 28, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Sep 20, 2025Janssen Biotech, Inc.
Sep 20, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Sep 20, 2025Janssen Biotech, Inc.
Sep 20, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Nov 1, 2025Janssen Biotech, Inc.
Nov 1, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Jul 19, 2025Janssen Biotech, Inc.
Jul 19, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Jun 28, 2025Janssen Biotech, Inc.
Jun 28, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Nov 1, 2025Janssen Biotech, Inc.
Nov 1, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Jan 25, 2025Janssen Biotech, Inc.
Jan 25, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,780
Jan 25, 2025Janssen Biotech, Inc.
Jan 25, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,780
Jan 23, 2025Janssen Biotech, Inc.
Jan 23, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$3,122
All 62 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Nov 22, 2025Janssen Biotech, Inc.
Nov 22, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,565
Nov 20, 2025Janssen Biotech, Inc.
Nov 20, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to TEMPLE, TX · in-kind
$717
Nov 12, 2025AbbVie Inc.
Nov 12, 2025
Compensation for services other than consulting (speaking, faculty)
RINVOQ · IMMUNOLOGY
$2,125
Nov 5, 2025Janssen Biotech, Inc.
Nov 5, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to ATLANTA, GA
$72.80
Nov 5, 2025Janssen Biotech, Inc.
Nov 5, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to ATLANTA, GA
$41.00
Nov 5, 2025Janssen Biotech, Inc.
Nov 5, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to ATLANTA, GA
$9.47
Nov 1, 2025Janssen Biotech, Inc.
Nov 1, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Nov 1, 2025Janssen Biotech, Inc.
Nov 1, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Oct 30, 2025Janssen Biotech, Inc.
Oct 30, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to ATLANTA, GA · in-kind
$1,453
Oct 30, 2025Janssen Biotech, Inc.
Oct 30, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to ATLANTA, GA · in-kind
$399
Oct 30, 2025Janssen Biotech, Inc.
Oct 30, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to ATLANTA, GA · in-kind
$162
Oct 29, 2025Janssen Biotech, Inc.
Oct 29, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to KYLE, TX
$72.80
Oct 29, 2025Janssen Biotech, Inc.
Oct 29, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to KYLE, TX
$10.61
Oct 25, 2025Janssen Biotech, Inc.
Oct 25, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,565
Sep 25, 2025Janssen Biotech, Inc.
Sep 25, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to EDINBURG, TX
$70.00
Sep 25, 2025Janssen Biotech, Inc.
Sep 25, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to EDINBURG, TX
$35.00
Sep 25, 2025Janssen Biotech, Inc.
Sep 25, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to EDINBURG, TX
$7.83
Sep 20, 2025Janssen Biotech, Inc.
Sep 20, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Sep 20, 2025Janssen Biotech, Inc.
Sep 20, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Sep 20, 2025Janssen Biotech, Inc.
Sep 20, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,565
Sep 20, 2025Janssen Biotech, Inc.
Sep 20, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,565
Sep 18, 2025Janssen Biotech, Inc.
Sep 18, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to HARLINGEN, TX · in-kind
$2,356
Sep 18, 2025Janssen Biotech, Inc.
Sep 18, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to HARLINGEN, TX · in-kind
$304
Sep 18, 2025Janssen Biotech, Inc.
Sep 18, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to HARLINGEN, TX · in-kind
$121
Aug 25, 2025Amgen Inc.
Aug 25, 2025
Consulting Fee
PROLIA · Bone Health
$175
Aug 13, 2025Janssen Biotech, Inc.
Aug 13, 2025
Education
TREMFYA · Immunology · in-kind
$99.00
Aug 8, 2025AbbVie Inc.
Aug 8, 2025
Compensation for services other than consulting (speaking, faculty)
RINVOQ · IMMUNOLOGY
$2,125
Jul 23, 2025AbbVie Inc.
Jul 23, 2025
Travel and Lodging
RINVOQ · IMMUNOLOGY · travel to DENVER, CO · in-kind
$186
Jul 19, 2025Janssen Biotech, Inc.
Jul 19, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Jul 19, 2025Janssen Biotech, Inc.
Jul 19, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to DETROIT, MI
$107
Jul 2, 2025AbbVie Inc.
Jul 2, 2025
Education
RINVOQ · IMMUNOLOGY · in-kind
$9.65
Jul 2, 2025AbbVie Inc.
Jul 2, 2025
Education
RINVOQ · IMMUNOLOGY · in-kind
$9.65
Jul 1, 2025Janssen Biotech, Inc.
Jul 1, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to EDINBURG, TX
$52.00
Jul 1, 2025Janssen Biotech, Inc.
Jul 1, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX
$42.00
Jun 28, 2025Janssen Biotech, Inc.
Jun 28, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Jun 28, 2025Janssen Biotech, Inc.
Jun 28, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,990
Jun 28, 2025Janssen Biotech, Inc.
Jun 28, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,565
Jun 26, 2025Janssen Biotech, Inc.
Jun 26, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$2,753
Jun 26, 2025Janssen Biotech, Inc.
Jun 26, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$390
Jun 26, 2025Janssen Biotech, Inc.
Jun 26, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$149
Jun 21, 2025Janssen Biotech, Inc.
Jun 21, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,565
Jun 19, 2025Janssen Biotech, Inc.
Jun 19, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to WACO, TX · in-kind
$717
Jun 4, 2025Sobi, Inc
Jun 4, 2025
Education
Kineret · Immunology · in-kind
$19.25
Jun 2, 2025AbbVie Inc.
Jun 2, 2025
Compensation for services other than consulting (speaking, faculty)
RINVOQ · IMMUNOLOGY
$2,550
May 31, 2025Janssen Biotech, Inc.
May 31, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$555
May 30, 2025Janssen Biotech, Inc.
May 30, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to DETROIT, MI · in-kind
$429
May 30, 2025Janssen Biotech, Inc.
May 30, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to DETROIT, MI · in-kind
$238
May 15, 2025AbbVie Inc.
May 15, 2025
Travel and Lodging
RINVOQ · IMMUNOLOGY · travel to DENVER, CO · in-kind
$346
May 15, 2025AbbVie Inc.
May 15, 2025
Travel and Lodging
RINVOQ · IMMUNOLOGY · travel to DENVER, CO · in-kind
$235
May 15, 2025AbbVie Inc.
May 15, 2025
Travel and Lodging
RINVOQ · IMMUNOLOGY · travel to DENVER, CO · in-kind
$40.00
May 3, 2025Janssen Biotech, Inc.
May 3, 2025
Consulting Fee
TREMFYA · Immunology
$2,280
Apr 16, 2025Janssen Biotech, Inc.
Apr 16, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$1,853
Apr 11, 2025AbbVie Inc.
Apr 11, 2025
Compensation for services other than consulting (speaking, faculty)
RINVOQ · IMMUNOLOGY
$2,125
Feb 26, 2025Janssen Biotech, Inc.
Feb 26, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX
$14.00
Feb 3, 2025Janssen Biotech, Inc.
Feb 3, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to EDINBURG, TX
$14.00
Jan 25, 2025Janssen Biotech, Inc.
Jan 25, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,780
Jan 25, 2025Janssen Biotech, Inc.
Jan 25, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$3,780
Jan 25, 2025Janssen Biotech, Inc.
Jan 25, 2025
Compensation for services other than consulting (speaking, faculty)
TREMFYA; SIMPONI ARIA · Immunology
$2,430
Jan 23, 2025Janssen Biotech, Inc.
Jan 23, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$3,122
Jan 23, 2025Janssen Biotech, Inc.
Jan 23, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$210
Jan 23, 2025Janssen Biotech, Inc.
Jan 23, 2025
Travel and Lodging
TREMFYA; SIMPONI ARIA · Immunology · travel to LAREDO, TX · in-kind
$111
Jan 6, 2025Janssen Biotech, Inc.
Jan 6, 2025
Travel and Lodging
SIMPONI ARIA; TREMFYA · Immunology · travel to AUSTIN, TX
$26.80

Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Texas →

Other Rheumatology clinicians in Austin

Sources

NPI registry (CMS NPPES, November 2026; record last updated February 21, 2025), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1659427334. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.