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Edit this profileAt a glance
- 9834 Genesee Avenue, Suite 223, La Jolla, CA 92037
About Dr. Nelson
Based in La Jolla, CA, Mark C. Nelson, MD is listed in the NPI registry under orthopedic surgery. Mark graduated from University of Utah School of Medicine in 1995. Mark is also listed as specializing in orthopaedic surgery of the spine. Medicare claims data shows Mark provided 300 services to 268 patients. 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, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1245341601 identifies this record in the national registry.
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
- (858) 777-7917
- Email not available
Practice Locations
9834 GENESEE AVENUE SUITE 223
La Jolla, CA 92037
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery 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
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Spine
Procedures & services
Most searched procedures
Evaluation and nonsurgical
Arthroscopy
Foot & Ankle
Foot and ankle
Hand & Wrist
Hand and upper extremity
Injections & Non-Surgical
Injections & pain relief
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
Shoulder surgery
Trauma & Fractures
Trauma and fixation
Procedures Most Often Billed to Medicare
300 services · 268 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
25 | Less often than most peers in Orthopedic Surgery |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
18 | Less often than most peers in Orthopedic Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
85 | As often as other peers in Orthopedic Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
67 | More often than most peers in Orthopedic Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
54 | Less often than most peers in Orthopedic Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
26 | As often as other peers in Orthopedic Surgery |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
25 | As often as other peers in Orthopedic Surgery |
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 orthopedic surgeons in La Jolla 8
Same specialty, same city.
Trained at University of Utah School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1995 at University of Utah School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Nelson's specialty?
Dr. Nelson is an orthopedic surgeon in La Jolla, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopedic Surgery”.
NPI registry
Where can I find Dr. Nelson?
Dr. Nelson is listed at 9834 Genesee Avenue Suite 223, La Jolla, CA 92037. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Nelson?
The number on file is (858) 777-7917. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Nelson?
Dr. Nelson's National Provider Identifier is 1245341601. 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. Nelson's medical education?
Dr. Nelson attended University of Utah School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Nelson have?
Dr. Nelson has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Nelson known for?
According to Medicare billing data, Dr. Nelson performs procedures including injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level and injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Nelson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nelson. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.