Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Karen Shakita Riggins, MD, PHD

Individual provider Internal Medicine Physician · NPI 1629497953

Dr. Karen Shakita Riggins, MD, PHD practises Hematology/Oncology in Houston, Texas. Graduated from Morehouse School of Medicine in 2014, 12 years ago. Practices with Baylor College of Medicine, a 798-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Oklahoma and Texas.

Years since qualifying
12
Trained at
Morehouse School of Medicine
Licensed in
OK, TX
In the registry since
2014
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1504 Taub Loop
Houston, TX 77030-1608
Phone: (713) 873-8890
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 11212 E 48th St, Tulsa, OK 74146-5824 — (918) 992-4580
  • 1161 21st Ave S, Nashville, TN 37232-0011 — (615) 322-3384

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence S6723 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence S6723 (TX)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 40382 (OK)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1629497953
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedApril 15, 2014
Last updated in NPPESFebruary 11, 2025
Certification dateFebruary 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolMOREHOUSE SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Baylor College Of Medicine — 798 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients50
Services billed 105 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $22 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Harris Health Hospital · Houston, TX

Colleagues at Baylor College of Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 798 clinicians in the practice; 12 are shown here.

Other providers in Houston