Physician Profile
Unclaimed ProfileAbout PORTER
Based in Grass Valley, CA, Gregory J Porter, M.D. is listed in the NPI registry under anesthesiology. Gregory graduated from State University of New York at Stony Brook, School of Medicine in 1990. Gregory is also listed as specialising in anesthesiology — pain medicine and interventional pain 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. Porter's specialty?
Dr. Porter is an anesthesiology in Grass Valley, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where can I find Dr. Porter?
Dr. Porter is listed at 400 SIERRA COLLEGE DR STE B, Grass Valley, CA 95945. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Porter?
The number on file is (530) 272-3428. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Porter's NPI number?
Dr. Porter's National Provider Identifier is 1790741262. 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. Porter's medical education?
Dr. Porter attended State University of New York at Stony Brook, School of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Porter been practising?
Dr. Porter has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Porter known for?
According to Medicare billing data, Dr. Porter performs procedures including injection of lower or sacral spine facet joint using imaging guidance, single level, injection of lower or sacral spine facet joint using imaging guidance, second level and injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level; provides treatments such as administration of psychological or neuropsychological test by technician, first 30 minutes and evaluation of neuropsychological test, first hour, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Porter confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Porter. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (530) 272-3428
- Email not available
Practice Locations
400 SIERRA COLLEGE DR STE B
Grass Valley, CA 95945
Procedures Most Often Billed to Medicare
4,107 services · 2,914 patients · 23 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
65 |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
64 |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
47 |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
37 |
| Injection of upper or middle spine facet joint using imaging guidance, second level | Procedure | 64491 |
17 |
| Injection of upper or middle spine facet joint using imaging guidance, single level | Procedure | 64490 |
17 |
| Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint | Procedure | 64635 |
12 |
| Anesthesia for lens surgery | Anaesthesia | 00142 |
595 |
| Anesthesia for other procedure on eye | Anaesthesia | 00140 |
49 |
| Anesthesia for procedure on eyelid | Anaesthesia | 00103 |
16 |
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.
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 anesthesiology specialists in Grass Valley 8
Same specialty, same city.
Trained at State University of New York at Stony Brook, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1990 at State University of New York at Stony Brook, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of lower or sacral spine facet joint using imaging guidance, single level 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.