Physician Profile
John R. Gurskis, M.D.
Unclaimed ProfileAbout Dr. Gurskis
Listed in the NPI registry as a specialist, John R. Gurskis, M.D. practices in Fountain Valley, CA. John graduated from University of Chicago, Pritzker School of Medicine in 1982. According to Medicare claims data, John cared for 468 Medicare patients across 2,132 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes.
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
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
- (714) 962-3661
- Email not available
Practice Locations
10840 WARNER AVE SUITE 109
Fountain Valley, CA 92708
Procedures Most Often Billed to Medicare
2,132 services · 468 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and injection of cyst of bone | Procedure | 20615 |
25 | Too few peers to compare |
| Injection of substance into lower spine canal using imaging guidance | Procedure | 62323 |
24 | Less often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,616 | More than most peers in Specialist |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
308 | More often than most peers in Specialist |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
139 | More often than most peers in Specialist |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
20 | Less often than most peers in Specialist |
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 specialists in Fountain Valley 8
Same specialty, same city.
Trained at University of Chicago, Pritzker School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 2 groups
Class of 1982 at University of Chicago, Pritzker School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and injection of cyst of bone 1
Providers in CA who bill this service to Medicare most often.
Common questions
What does John R. Gurskis specialize in?
John R. Gurskis is a specialist in Fountain Valley, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is John R. Gurskis located?
John R. Gurskis is listed at 10840 Warner Ave Suite 109, Fountain Valley, CA 92708. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John R. Gurskis's phone number?
The number on file is (714) 962-3661. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is John R. Gurskis's NPI number?
John R. Gurskis's National Provider Identifier is 1417010182. 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
Where did John R. Gurskis train?
John R. Gurskis attended University of Chicago, Pritzker School of Medicine, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has John R. Gurskis been practicing?
John R. Gurskis has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What does John R. Gurskis do most often?
According to Medicare billing data, John R. Gurskis performs procedures including aspiration and injection of cyst of bone and injection of substance into lower spine canal using imaging guidance, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John R. Gurskis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John R. Gurskis. 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.