Physician Profile
Unclaimed ProfileAbout JOHNSON
Christopher Warren Johnson, MD is a healthcare provider in San Luis Obispo, CA specializing in urology. Christopher trained at Js Weill Medical College, Cornell University, graduating in 1999. According to Medicare claims data, Christopher cared for 6,970 Medicare patients across 54,680 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (805) 541-1111
- Email not available
Practice Locations
35 CASA ST STE 370
San Luis Obispo, CA 93405
Procedures Most Often Billed to Medicare
54,680 services · 6,970 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound measurement of bladder capacity after voiding | Procedure | 51798 |
897 |
| Diagnostic exam of bladder and urethra using an endoscope | Procedure | 52000 |
228 |
| Insertion of lower leg neurostimulator electrode | Procedure | 64566 |
123 |
| Biopsy of prostate gland | Procedure | 55700 |
76 |
| Shock wave crushing of kidney stones | Procedure | 50590 |
54 |
| Ultrasonic guidance for needle placement | Imaging | 76942 |
97 |
| Imaging of urinary tract following injection of a contrast agent | Imaging | 74420 |
45 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
207 |
| Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96402 |
92 |
| Injection, testosterone undecanoate, 1 mg | Drug given | J3145 |
32,251 |
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 2
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 urology specialists in San Luis Obispo 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Js Weill Medical College, Cornell University 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Js Weill Medical College, Cornell University 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound measurement of bladder capacity after voiding 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Johnson?
Dr. Johnson is an urology in San Luis Obispo, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “UROLOGY”.
NPI registry
What is Dr. Johnson's address?
Dr. Johnson is listed at 35 CASA ST STE 370, San Luis Obispo, CA 93405. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Johnson?
The number on file is (805) 541-1111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Johnson's NPI number?
Dr. Johnson's National Provider Identifier is 1770562712. 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 Dr. Johnson train?
Dr. Johnson attended Js Weill Medical College, Cornell University, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Johnson been practicing?
Dr. Johnson has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Johnson perform?
According to Medicare billing data, Dr. Johnson performs procedures including ultrasound measurement of bladder capacity after voiding, diagnostic exam of bladder and urethra using an endoscope and insertion of lower leg neurostimulator electrode; reads or performs imaging such as ultrasonic guidance for needle placement and imaging of urinary tract following injection of a contrast agent; provides treatments such as injection of drug or substance under skin or into muscle and administration of hormonal anti-neoplastic chemotherapy under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Johnson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnson. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.