Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1649447525 Individual Practitioner Male Practitioner

Dr. Gregory Calderoni Ravizzini , MD

Nuclear Medicine • Houston, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Ravizzini, MD is a certified Nuclear Medicine practicing in Houston, TX. With approximately 28 years of clinical experience since completing medical education in 1998, Dr. Ravizzini delivers high-quality medical care to the local community at 1515 HOLCOMBE BLVD.

Dr. Ravizzini is affiliated with Physicians Referral Service and accepts Medicare assignment.

Frequently performed procedures and clinical services include dxa bone density measurement of hip, pelvis, spine, nuclear medicine study from skull base to mid-thigh with ct scan, nuclear medicine study of bone and/or joint whole body. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1515 Holcombe Blvd

Houston, TX 770304009

Telephone 7137926161
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

1998

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nuclear Medicine in Houston, TX

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
28 Yrs +3.9 yrs vs City Avg
City Avg: 24.1 Yrs
State Avg: 29.1 Yrs
Regional Practice Density
20 Specialists

Practicing in Houston, TX (54 Statewide)

Telehealth Adoption Rate
5.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
88.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ravizzini (28 Years) 28 Yrs
Houston Specialty Average (24.1 Years) 24.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
77080 Dxa bone density measurement of hip, pelvis, spine
421 421 $159.90 $9.32
78815 Nuclear medicine study from skull base to mid-thigh with ct scan
227 218 $674.40 $110.88
78306 Nuclear medicine study of bone and/or joint whole body
215 196 $373.47 $38.34
77080 Dxa bone density measurement of hip, pelvis, spine
151 151 $160.50 $9.00
78816 Nuclear medicine study whole body with ct scan
106 103 $698.98 $112.12
77081 Dxa bone density measurement of forearm, finger, hand, or foot
72 72 $149.83 $9.28
78306 Nuclear medicine study of bone and/or joint whole body
71 62 $372.38 $36.71
79101 Radioactive drug therapy through a vein
69 59 $894.83 $91.48
78815 Nuclear medicine study from skull base to mid-thigh with ct scan
69 67 $674.39 $105.69
78195 Imaging of lymphatic tissue and lymph node
38 38 $561.24 $54.96
78802 Nuclear medicine localization of tumor or inflammation or study of distribution of radioactive tracer in whole body, single day imaging
34 33 $402.76 $36.21
78816 Nuclear medicine study whole body with ct scan
28 27 $699.00 $108.66
78832 Nuclear medicine study, spect imaging with concurrent ct scan, at least 2 areas or separate acquisitions, single day imaging, or single area or acquisition over multiple days
24 23 $1142.33 $95.05
78830 Nuclear medicine study, spect imaging with concurrent ct scan, 1 area or single acquisition, single day imaging
19 19 $722.58 $66.28
77081 Dxa bone density measurement of forearm, finger, hand, or foot
18 18 $150.33 $8.96
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect
15 15 $728.73 $74.21
78580 Nuclear medicine study of blood circulation in the lungs
14 14 $290.86 $34.18
78472 Nuclear medicine study of heart wall motion at rest or stress with evaluation of blood ejection from heart, single study
14 14 $530.71 $45.12
78803 Nuclear medicine study, spect imaging, 1 area or single acquisition, single day imaging
11 11 $468.45 $49.24

Medical Specialties & State Licenses

Nuclear Medicine Primary Specialty

NUCC Taxonomy Code: 207U00000X

State License TX P1213

A nuclear medicine specialist employs the properties of radioactive atoms and molecules in the diagnosis and treatment of disease and in research. Radiation detection and imaging instrument systems are used to detect disease as it changes the function and metabolism of normal cells, tissues and organs. A wide variety of diseases can be found in this way, usually before the structure of the organ involved by the disease can be seen to be abnormal by any other techniques. Early detection of coronary artery disease (including acute heart attack), early cancer detection and evaluation of the effect of tumor treatment, diagnosis of infection and inflammation anywhere in the body and early detection of blood clot in the lungs are all possible with these techniques. Unique forms of radioactive molecules can attack and kill cancer cells (e.g., lymphoma, thyroid cancer) or can relieve the severe pain of cancer that has spread to bone

Nuclear Medicine

NUCC Taxonomy Code: 207U00000X

State License NY 238724

A nuclear medicine specialist employs the properties of radioactive atoms and molecules in the diagnosis and treatment of disease and in research. Radiation detection and imaging instrument systems are used to detect disease as it changes the function and metabolism of normal cells, tissues and organs. A wide variety of diseases can be found in this way, usually before the structure of the organ involved by the disease can be seen to be abnormal by any other techniques. Early detection of coronary artery disease (including acute heart attack), early cancer detection and evaluation of the effect of tumor treatment, diagnosis of infection and inflammation anywhere in the body and early detection of blood clot in the lungs are all possible with these techniques. Unique forms of radioactive molecules can attack and kill cancer cells (e.g., lymphoma, thyroid cancer) or can relieve the severe pain of cancer that has spread to bone

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
286780601 (TX)
Commercial Insurance / Payer ID Bcbs
8W5241 (TX)

Hospital & Practice Group Affiliations

Physicians Referral Service

2130 W Holcombe Blvd, Houston, TX 770304009

Phone: 7135925433

Physicians Referral Service

2280 Gulf Fwy S, League City, TX 775735143

Phone: 7135630670

Physicians Referral Service

13900 Katy Fwy, Houston, TX 770791012

Phone: 7135639600

Physicians Referral Service

100 Fellowship Dr, Conroe, TX 773844797

Phone: 7135630050

Physicians Referral Service

2240 Gulf Fwy S, League City, TX 775735143

Phone: 4097721011

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Merry Chen , MD

Psychiatry & Neurology - Neurology

NPI 1003022013

Doctor of Medicine (M.D.)

Dr. Ameena Malhotra , MD

Internal Medicine - Nephrology

NPI 1003046822

Doctor of Medicine (M.D.)

Dr. Bryan Guillory , MD

Pathology - Anatomic Pathology & Clinical Pathology

NPI 1003102674

Doctor of Medicine (M.D.)

NPI 1003121237

Doctor of Medicine (M.D.)

Dr. Sunyoung Lee , MD

Internal Medicine - Medical Oncology

NPI 1003159054

Doctor of Medicine (M.D.)

Rachel Futrell , PA-C

Physician Assistant

NPI 1003193350

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active February 27, 2012

NPI status registered as active in NPPES database

📍
Updated Practice Location February 27, 2012

Registered at 1515 HOLCOMBE BLVD, HOUSTON, TX 770304009 (Tel: 7137926161)

📍
Updated Business Mailing Address February 27, 2012

Registered at PO BOX 4439, HOUSTON, TX 772104439 (Tel: 7137922991)

👤
Provider Name / Credentials Updated February 27, 2012

Recorded as GREGORY RAVIZZINI, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 27, 2012

Nuclear Medicine (License #P1213 in TX)

🟢
Initial NPI Registration & Enumeration May 10, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Gregory Ravizzini. Be the first to share your experience!

Sign in to leave a review for Dr. Gregory Ravizzini

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1649447525
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 10, 2008
Last Update: February 27, 2012
Sole Proprietor: No

Mailing Address

Po Box 4439

Houston, TX 772104439

Phone: 7137922991

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.