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DR. SABAREESH KUMAR NATARAJAN M.D. M.S.
NPI 1912190083
Neurological Surgery in La Mesa, CA

Active since August 22, 2007PECOS EnrolledAccepts Medicare Assignment
5555 GROSSMONT CENTER DR, LA MESA, CA 91942(619) 984-6969(866) 278-6876 Get Directions Write a Review

NPPES record last updated: March 17, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 17, 2026, Dec 13, 2023, Jan 19, 2022 and 5 more (8 updates tracked since 2017).

About Dr. Sabareesh Kumar Natarajan M.d. M.s. NPPES

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

DR. SABAREESH KUMAR NATARAJAN M.D. M.S. (NPI 1912190083) is an individual neurological surgery provider in La Mesa, California, licensed in California (C183051) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1912190083
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameDR. SABAREESH KUMAR NATARAJANCredential: M.D. M.S.
Location Address5555 GROSSMONT CENTER DRLa Mesa, CA 91942-3019
Mailing Address1640 Ludington LnLa Jolla, CA 92037-3805 · (855) 278-6876 · Fax (866) 278-6876
Phone(619) 984-6969
Fax(866) 278-6876
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateAugust 22, 2007
Last NPPES UpdateMarch 17, 20268 updates tracked since enumeration
NPPES CertifiedMarch 17, 2026
✔ NPI 1912190083 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
Licenses✔ Licensed in CA · C183051✔ Licensed in MA · 276818
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
5555 GROSSMONT CENTER DR, La Mesa, CA 91942
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Secondary Practice Locations 4

Location 15643 Copley Dr Ste 300San Diego, CA 92111-7903 · Phone (619) 984-6969 · Fax (866) 278-6876
Location 2751 Medical Center CtChula Vista, CA 91911-6617 · Phone (619) 984-6969 · Fax (866) 278-6876
Location 3765 Medical Center Ct Ste 210Chula Vista, CA 91911-6600 · Phone (619) 984-6969 · Fax (866) 278-6876
Location 46125 Paseo Del Norte Ste 140Carlsbad, CA 92011-1119 · Phone (619) 984-6969 · Fax (866) 278-6876

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan, Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sabareesh Kumar Natarajan M.d. M.s. 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 ID1658655386
PECOS Enrollment IDI20240121000142
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Sabareesh Natarajan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sabareesh K Natarajan MD Professional Corporation
Same address
Neurological Surgery
5555 GROSSMONT CENTER DR
La Mesa, CA 91942
  • Reassigned Medicare billing, California enrollment
NPI 1952174765 (619) 984-6969
Emergency And Acute Care Medical Corporation
8.7 mi
Emergency Medicine
7901 FROST ST
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 1,437 clinicians in this Medicare group
NPI 1437103942 (858) 939-3400
Legacy Clinics LLC
915 mi
Rural Health
36860 INDUSTRIAL WAY
Sandy, OR 97055
  • Reassigned Medicare billing, Oregon enrollment
  • 1,248 clinicians in this Medicare group
NPI 1730472192 (503) 826-0206

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
66 services40 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
57 services34 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
49 services34 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.
34 services22 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91942 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

ALHELI BAILY
Registered Nurse
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
MISS APRIL JULIA CROMIE PMHNP-BC, APRN, MSN
Nurse Practitioner (Psychiatric/Mental Health)
5555 GROSSMONT CENTER DR, 5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (858) 296-6182
TEAGAN SHEA COLEMAN
Registered Nurse (Emergency)
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
BRENDAN J LEE DO
Emergency Medicine
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 644-4401
PAUL Y ABOU MD
Internal Medicine
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 465-0711
MRS. AMY ELIZABETH VU P.A.-C
Physician Assistant
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
CHRISTA ANN LANDOWSKA AREFIEVA MD
Emergency Medicine
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000
TYLER QUOC NGUYEN
Pharmacist
5555 GROSSMONT CENTER DR
LA MESA, CA 91942
San Diego County (619) 740-6000

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 Sabareesh Natarajan's NPI number?

The NPI number for Sabareesh Natarajan is 1912190083. It was assigned to this individual provider in the NPPES registry on August 22, 2007.

Where is Sabareesh Natarajan located?

Sabareesh Natarajan practices at 5555 Grossmont Center Dr, La Mesa, CA 91942. The listed phone number is (619) 984-6969.

What is Sabareesh Natarajan's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Sabareesh Natarajan enrolled in Medicare?

Yes. Sabareesh Natarajan 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.

Which organizations bill Medicare for Sabareesh Natarajan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sabareesh Natarajan reassigns Medicare benefits to 3 organizations: Sabareesh K Natarajan MD Professional Corporation (La Mesa, CA), Emergency And Acute Care Medical Corporation (San Diego, CA) and Legacy Clinics LLC (Sandy, OR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sabareesh Natarajan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sabareesh Natarajan accept?

Health plans from Providence Health Plan and Taro Health list Sabareesh Natarajan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sabareesh Natarajan was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.