MARK C NELSON MD
NPI 1245341601
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Lajolla, CA

Q: What is Mark Nelson's NPI number?

The NPI number for Mark Nelson is 1245341601. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Q: What is Mark Nelson's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Q: When was this NPI record last updated?

The NPPES record for Mark Nelson was last updated on February 2, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment

68.61/100

CMS Quality Rating

9834 GENESEE AVENUE, SUITE 223, LAJOLLA, CA 92037(858) 777-7917(858) 703-5048 Get Directions Write a Review

NPPES record last updated: February 2, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Mark C Nelson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK C NELSON MD (NPI 1245341601) is an individual orthopaedic surgery of the spine provider in Lajolla, California, licensed in California (A80416) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Utah School Of Medicine (1995).

NPPES Registry Identity

NPI1245341601

Entity TypeIndividualMale

Primary Taxonomy207XS0117X

Provider Legal NameMARK C NELSONCredential: MD

Location Address9834 GENESEE AVENUE, SUITE 223Lajolla, CA 92037

Mailing Address9834 Genesee Avenue, Suite 223Lajolla, CA 92037 · (858) 777-7917 · Fax (858) 703-5048

Phone(858) 777-7917

Fax(858) 703-5048

Sole ProprietorYes

Medical School CMSUniversity Of Utah School Of MedicineGraduated 1995

Enumeration DateAugust 31, 2006

Last NPPES UpdateFebruary 2, 2015

✔ NPI 1245341601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic Surgery of the SpineAllopathic & Osteopathic Physicians

Taxonomy Code207XS0117X

License✔ Licensed in CA · A80416

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.

9834 GENESEE AVENUE, Lajolla, CA 92037

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Other Identifiers 1

Medicare UPINH75303CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark C Nelson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5890685929

PECOS Enrollment IDI20040319001083

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

85 services66 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

67 services67 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

54 services47 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

26 services26 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483

This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.

25 services22 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

25 services22 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

68.61/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

49.61

Improvement Activities

Cost

58.22

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Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ROBYN GROSSMAN COHEN MD

Ophthalmology

9834 GENESEE AVENUE, SUITE 315
LA JOLLA, CA 92037

San Diego County (858) 457-4090

DR. JOSEPH TERENCE DALY M.D.

Ophthalmology

9834 GENESEE AVENUE, SUITE 315
LA JOLLA, CA 92037

San Diego County (858) 457-4090

SAN DIEGO SLEEP MEDICINE INC

Psychiatry & Neurology (Sleep Medicine)

9834 GENESEE AVENUE, SUITE 112
LA JOLLA, CA 92037

San Diego County (858) 623-3266

LA JOLLA ADDICTION HEALING CENTER

Counselor (Addiction (Substance Use Disorder))

9834 GENESEE AVENUE, SUITE 427
LA JOLLA, CA 92037

San Diego County (858) 454-4357

MS. JULIE ELIZABETH MYERS N.P.

Nurse Practitioner (Family)

9834 GENESEE AVENUE, STE. 412
LA JOLLA, CA 92037

San Diego County (858) 457-0034

BRADLEY J. SCHNIEROW M.D.

Psychiatry & Neurology (Sleep Medicine)

9834 GENESEE AVENUE, SUITE 112
LA JOLLA, CA 92037

San Diego County (858) 623-3266

MARK C. NELSON, MD, INC

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

9834 GENESEE AVENUE, SUITE 223
LAJOLLA, CA 92037

San Diego County (858) 777-7917

SAN DIEGO VITREORETINAL ASSOCIATES

Ophthalmology

9834 GENESEE AVENUE, SUITE 315
LA JOLLA, CA 92037

San Diego County (858) 457-4090

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Nelson's NPI number?

The NPI number for Mark Nelson is 1245341601. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Mark Nelson located?

Mark Nelson practices at 9834 Genesee Avenue Suite 223, Lajolla, CA 92037. The listed phone number is (858) 777-7917.

What is Mark Nelson's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Is Mark Nelson enrolled in Medicare?

Yes. Mark Nelson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mark Nelson was last updated on February 2, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.