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

Dr. Gregory Michael Chronowski, MD

Individual provider Radiation Oncology Physician · NPI 1598789570

Dr. Gregory Michael Chronowski, MD practises Radiation Oncology in Houston, Texas. Graduated from Jefferson Medical College of Thomas Jefferson University in 1998, 28 years ago. Practices with Physicians Referral Service, a 2,727-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Mexico and Texas.

Years since qualifying
28
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
NM, TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1515 Holcombe Blvd
Houston, TX 77030-4000
Phone: (713) 792-6161
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence M2924 (TX)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence MD2018-0864 (NM)

Record details

NPI number1598789570
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 26, 2006
Last updated in NPPESMay 19, 2020
Certification dateMay 19, 2020

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1998 (28 years in practice)
Group practice Physicians Referral Service — 2727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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 patients174
Services billed 1,693 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Physicians Referral Service

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2727 clinicians in the practice; 12 are shown here.

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