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Edit this profileAt a glance
- 100 Casa St Ste C, San Luis Obispo, CA 93405
About Dr. Johnson
Robert R. Johnson, M.D. is a healthcare provider in San Luis Obispo, CA specializing in radiation oncology. Robert trained at Cincinnati College of Medicine and Surgery, graduating in 2007. Robert is also listed as specializing in therapeutic radiology. Medicare claims data shows Robert provided 5,537 services to 1,572 patients. The services billed most often include intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session, ct guidance for insertion of radiation therapy fields, and radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev. This provider record is associated with NPI 1598942781.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (805) 541-1932
- Email not available
Practice Locations
100 CASA ST STE C
San Luis Obispo, CA 93405
Conditions Commonly Evaluated or Treated
Within Radiation Oncology 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
- Brain tumors
- Breast cancer
- Prostate cancer
Benign condition
Blood and lymph cancer
Bone cancer
- Primary Bone Cancer
Brain tumors
Cancer emergencies
- Blocked Chest Vein
- Spinal Cord Compression From Tumor
Chest cancer
- Mesothelioma
- Thymus tumor
Endocrine cancer
Eye cancer
Eye conditions
Foot conditions
Gastrointestinal cancer
- Anal cancer
- Bile duct cancer
- Colon cancer
- Esophageal cancer
- Gallbladder cancer
- Liver cancer
- Pancreatic cancer
- Stomach cancer
Gynecologic cancer
- Cervical cancer
- Endometrial cancer
- Ovarian cancer
- Vaginal Cancer
- Vulvar cancer
Head & neck cancer
- Nose and Sinus Cancer
- Parotid gland tumor
Head and neck cancer
- Head and neck cancer
- Laryngeal cancer
- Oral cavity cancer
Metastatic cancer
- Cancer spread to bones
- Cancer spread to spine
- Severe back pain
Neurologic condition
Orthopedic conditions
Sarcoma
Skin cancer
Thoracic cancer
Urologic cancer
- Bladder cancer
- Kidney cancer
- Penile Cancer
- Testicular cancer
Vascular conditions
Procedures & services
Most searched procedures
- Brachytherapy
- CyberKnife
- Gamma Knife
- Proton therapy
- Radiation therapy
Advanced radiation
- MRI-Guided Radiation Therapy
Benign treatment
- Keloid scar radiation
Brain radiation
- Whole Brain Radiation
Cancer treatment
- Post-Surgery Radiation Therapy
- Pre-Surgery Radiation Therapy
Central nervous system
- Brain and Spinal Cord Radiation
Consultation
- Cancer radiation second opinion
- Radiation oncology consultation
External radiation
- Electron beam therapy
- Image-guided radiation (IGRT)
- IMRT (Targeted intensity radiation)
- RapidArc / VMAT radiation
- Total body irradiation (TBI)
Eye cancer treatment
- Eye Plaque Radiation Therapy
Follow-up care
- Radiation skin care and follow-up visit
Heart treatments
- Heart Arrhythmia Radiation Therapy
Internal radiation
- High-Dose Rate (HDR) Radiation Implants
Pain and symptom relief
- Palliative radiation for bone pain
Particle therapy
- Heavy Ion Radiation Therapy
Precision radiation
- Adaptive radiation therapy
- Heart-sparing breath hold radiation (DIBH)
- Spine radiosurgery
- Stereotactic body radiation (SBRT)
- Stereotactic radiosurgery (SRS)
- Tattoo-free radiation
Prostate cancer treatment
- Prostate Radioactive Seed Implants
Prostate protection
- SpaceOAR Hydrogel Injection
Radiation therapy
- Radiation Boost
Skin cancer treatment
- Superficial Radiation Therapy (SRT)
Skin lymphoma treatment
- Total Skin Electron Radiation
Specialized radiation
- Heat therapy for cancer (Hyperthermia)
- Intraoperative radiation (IORT)
Targeted isotopes
- Pluvicto infusion
- Radioactive Iodine Treatment
- Xofigo injection
- Y90 radioembolization
Targeted radiation drugs
- Lutathera Infusion
Treatment planning
- 4D CT Motion Scan
- Breathing-synchronized radiation (Respiratory gating)
- CT simulation scan
- Custom radiation mask fitting
- Gold marker placement (Fiducials)
- MRI Simulation Scan
- PET-CT Simulation Scan
- Radiation Therapy Alignment Tattoos
Procedures Most Often Billed to Medicare
5,537 services · 1,572 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
950 | More often than most peers in Radiation Oncology |
| Continuing radiation therapy consultation per week | Imaging | 77336 |
394 | Too few peers to compare |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
354 | More often than most peers in Radiation Oncology |
| Calculation of radiation therapy dose | Imaging | 77300 |
343 | More often than most peers in Radiation Oncology |
| Superficial and/or low voltage radiation treatment delivery | Imaging | 77401 |
292 | Too few peers to compare |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
186 | More often than most peers in Radiation Oncology |
| Complex radiation therapy planning | Imaging | 77263 |
111 | More often than most peers in Radiation Oncology |
| Cranial lesion surgery using radiation over multiple sessions | Imaging | 77373 |
103 | Too few peers to compare |
| Design and construction of radiation treatment device for high precision radiation therapy | Imaging | 77338 |
91 | More often than most peers in Radiation Oncology |
| High precision radiation therapy planning | Imaging | 77301 |
89 | More often than most peers in Radiation Oncology |
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.
Other radiation oncologists at this location 4
Same specialty, same street address — most likely the same department or group.
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.
Trained at Cincinnati College of Medicine and Surgery 1
Other providers in the same specialty who trained at the same institution.
More connections — 11 related providers in 2 groups
Class of 2007 at Cincinnati College of Medicine and Surgery 3
Providers who graduated from the same medical school in the same year.
Also performs Ct guidance for insertion of radiation therapy fields 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Robert R. Johnson's specialty?
Robert R. Johnson is a radiation oncologist in San Luis Obispo, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Radiation Oncology”.
NPI registry
Where can I find Robert R. Johnson?
Robert R. Johnson is listed at 100 Casa St Ste C, San Luis Obispo, CA 93405. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Robert R. Johnson?
The number on file is (805) 541-1932. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Robert R. Johnson?
Robert R. Johnson's National Provider Identifier is 1598942781. 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 Robert R. Johnson's education?
Robert R. Johnson attended Cincinnati College of Medicine and Surgery, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Robert R. Johnson have?
Robert R. Johnson has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What is Robert R. Johnson known for?
According to Medicare billing data, Robert R. Johnson performs imaging including ct guidance for insertion of radiation therapy fields and continuing radiation therapy consultation per week, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Robert R. Johnson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Robert R. Johnson. If this is you, claiming it is free.
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