Physician Profile
Unclaimed ProfileAbout WARNER
Based in Visalia, CA, Gregory C Warner, M.D. is listed in the NPI registry under pulmonary disease. Gregory graduated from University of Nebraska College of Medicine in 1980. Gregory is also listed as specialising in internal medicine, sleep medicine, and critical care medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Warner's specialty?
Dr. Warner is a pulmonary disease in Visalia, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
Where can I find Dr. Warner?
Dr. Warner is listed at 5400 W HILLSDALE AVE, Visalia, CA 93291. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Warner?
The number on file is (559) 738-7511. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Warner?
Dr. Warner's National Provider Identifier is 1699810689. 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. Warner's medical education?
Dr. Warner attended University of Nebraska College of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Warner have?
Dr. Warner has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Warner known for?
According to Medicare billing data, Dr. Warner performs procedures including insertion of non-tunneled central venous tube for infusion, emergent insertion of breathing tube into windpipe using an endoscope and aspiration of initial secretion of lung airway using an endoscope; reads or performs imaging such as ultrasonic guidance for blood vessel access; provides treatments such as test to determine lung volumes using sensors and sleep study in sleep lab with continuous airway pressure, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Warner's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Warner. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (559) 738-7511
- Email not available
Practice Locations
5400 W HILLSDALE AVE
Visalia, CA 93291
Procedures Most Often Billed to Medicare
1,154 services · 777 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
21 |
| Emergent insertion of breathing tube into windpipe using an endoscope | Procedure | 31500 |
16 |
| Aspiration of initial secretion of lung airway using an endoscope | Procedure | 31645 |
13 |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
14 |
| Test to determine lung volumes using sensors | Treatment | 94726 |
81 |
| Sleep study in sleep lab with continuous airway pressure (6 years or older) | Treatment | 95811 |
62 |
| Sleep study in sleep lab (6 years or older) | Treatment | 95810 |
33 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
448 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
164 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
130 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated 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.
More connections — 24 related providers in 3 groups
Trained at University of Nebraska College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at University of Nebraska College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of non-tunneled central venous tube for infusion (5 years or older) 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.