Physician Profile
Gregory T. Havlena, MD
Unclaimed ProfileAbout Dr. Havlena
Gregory T. Havlena, MD practices vascular & interventional radiology in Fontana, CA. Gregory is a 2009 graduate of Johns Hopkins University School of Medicine. According to Medicare claims data, the services billed most often include limited ultrasound scan of abdomen.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (909) 427-5000
- Email not available
Practice Locations
9961 SIERRA AVE
Fontana, CA 92335
Conditions Commonly Evaluated or Treated
Within Interventional Radiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Deep vein thrombosis
- Enlarged prostate
- Peripheral artery disease
- Spinal compression fractures
- Uterine fibroids
- Varicose veins
Bone & Joint
- Benign Bone Tumor
- Heel pain
Brain & Spine
- Brain aneurysm
- Chronic Brain Bleed
- Stroke
Cancer
- Cancer spread to bones
- Kidney cancer
- Liver cancer
- Lung cancer
Digestive
- Acute gallbladder inflammation
- Ascites
- Benign Liver Tumor
- Bleeding Hemorrhoids
- Blocked Bile Duct
- Portal hypertension
Emergency vascular
- Internal Bleeding
Endocrine
- Thyroid nodules
Joint & bone pain
- Frozen shoulder
- Knee osteoarthritis
- Tennis elbow
Kidney
- Dialysis Access Problems
- Hydronephrosis
Men's health
- Varicocele
Pain
- Facet joint pain
- Sacroiliac joint pain
- Sciatica
- Severe Cancer Pain in Belly
Respiratory
- Fluid around the lungs
Vascular
- Aortic aneurysm
- Blocked Chest Vein
- Blood Clot in Lung
- Brain Vascular Malformation
- Carotid Artery Blockage
- Chronic venous insufficiency
- Leg Ulcers
- Lymph Fluid Leak in Chest
- May-Thurner Syndrome
- Narrow kidney artery
- Nutcracker Syndrome
- Spider veins
- Torn Aorta
- Visceral Artery Aneurysm
Women's health
- Adenomyosis
- Blocked Fallopian Tubes
- Chronic pelvic pain
Procedures & services
Most searched procedures
- Angiogram
- Atherectomy
- Kyphoplasty
- Prostate artery embolization
- Uterine fibroid embolization
- Y-90 radioembolization
Bone & Joint
- Osteoid Osteoma Ablation
Brain & Spine
- Brain Aneurysm Coiling
- Image-Guided Lumbar Puncture
- Middle Meningeal Artery Embolization
Cancer
- Chemo port removal
- Kidney Tumor Ablation
- Microwave Ablation for Tumors
- Radiofrequency ablation
- TACE Chemoembolization
- Tumor Cryoablation
Diagnostic
- Image-Guided Needle Biopsy
Digestive
- Bile duct stent placement
- Feeding tube placement
- Gallbladder Drainage Tube Placement
- Hemorrhoid Embolization
- TIPS Procedure
Drainage
- Draining lung fluid
- Incision and drainage of an abscess
- Paracentesis
Emergency vascular
- Embolization for Internal Bleeding
Endocrine
- Thyroid Nodule Radiofrequency Ablation
Joint & bone pain
- Knee Embolization for Arthritis
- Vertebroplasty
Kidney
- Dialysis Fistula Repair
- Kidney Drainage Tube Placement
Kidney & Urinary
- Minimally Invasive Dialysis Fistula Creation
Men's health
- Varicocele Embolization
Pain
- Celiac Plexus Nerve Block
- Epidural steroid injection
- Radiofrequency Nerve Ablation
- Sacroiliac joint injection
Vascular
- Balloon Angioplasty for Legs
- Blood Clot Removal Surgery
- Carotid Artery Stent
- Catheter Clot Dissolving Treatment
- IVC Filter Placement
- IVC Filter Removal
- Laser Vein Treatment For Leg Swelling
- Minimally Invasive Aneurysm Repair
- Sclerotherapy
- Thoracic Duct Embolization
- Vascular Malformation Sclerotherapy
- Vein Blood Flow Study
- Vein Stent Placement
Vascular access
- Chemo port placement
- PICC line placement coordination
Women's health
- Pelvic Vein Embolization
- Unblocking Fallopian Tubes
Procedures Most Often Billed to Medicare
13 services · 13 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Limited ultrasound scan of abdomen | Imaging | 76705 |
13 | Less often than most peers in Vascular & Interventional… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other interventional radiologists in Fontana 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Johns Hopkins University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Limited ultrasound scan of abdomen 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Havlena's specialty?
Dr. Havlena is an interventional radiologist in Fontana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Vascular & Interventional Radiology”.
NPI registry
Where can I find Dr. Havlena?
Dr. Havlena is listed at 9961 Sierra Ave, Fontana, CA 92335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Havlena?
The number on file is (909) 427-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Havlena?
Dr. Havlena's National Provider Identifier is 1598993859. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Havlena's medical education?
Dr. Havlena attended Johns Hopkins University School of Medicine, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Havlena have?
Dr. Havlena has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Havlena known for?
According to Medicare billing data, Dr. Havlena performs imaging including limited ultrasound scan of abdomen. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Havlena's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Havlena. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.