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SIDDHARTH AGARWAL M.D.
NPI 1407078496
Surgery - Vascular Surgery in Oxnard, CA

Active since May 02, 2007PECOS EnrolledAccepts Medicare Assignment
2841 N VENTURA RD, SUITE 200, OXNARD, CA 93036(805) 983-6233 Get Directions Write a Review

NPPES record last updated: February 11, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Siddharth Agarwal M.d. NPPES

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

SIDDHARTH AGARWAL M.D. (NPI 1407078496) is an individual vascular surgery provider in Oxnard, California, licensed in California (A123737) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2004).

NPPES Registry Identity

NPI1407078496
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameSIDDHARTH AGARWALCredential: M.D.
Location Address2841 N VENTURA RD, SUITE 200Oxnard, CA 93036-2213
Mailing Address2841 N Ventura Rd, Suite 200Oxnard, CA 93036-2213 · (805) 983-6233
Phone(805) 983-6233
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2004
Enumeration DateMay 2, 2007
Last NPPES UpdateFebruary 11, 2016
✔ NPI 1407078496 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in CA · A123737
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Also ListedSurgeryTaxonomy 208600000X · License MT190387 (PA)
2841 N VENTURA RD, Oxnard, CA 93036
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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

Siddharth Agarwal M.d. 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 ID2466604160
PECOS Enrollment IDI20121203000496
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

6

Medicare enrollment records show Siddharth Agarwal reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of San Joaquin
269 mi
Multi-Specialty
283 SPRECKELS AVE
Manteca, CA 95336
  • Reassigned Medicare billing, California enrollment
  • 534 clinicians in this Medicare group
NPI 1417407636 (209) 953-6400
Washington Township Medical Foundation
277 mi
Internal Medicine
39300 CIVIC CENTER DR STE 370
Fremont, CA 94538
  • Reassigned Medicare billing, California enrollment
  • 121 clinicians in this Medicare group
NPI 1346557014 (510) 248-1000
San Joaquin Faculty Medical Group
277 mi
Internal Medicine
500 HOSPITAL RD
French Camp, CA 95231
  • Reassigned Medicare billing, California enrollment
  • 512 clinicians in this Medicare group
NPI 1225063761 (209) 473-6555
Aria Vascular A Professional Medical Corporation
285 mi
Clinic/Center
1611 W MARCH LN
Stockton, CA 95207
  • Reassigned Medicare billing, California enrollment
  • 11 clinicians in this Medicare group
NPI 1164260741 (510) 381-0884
Authority Vascular Surgery Incorporated
285 mi
Vascular Surgery
1611 W MARCH LN
Stockton, CA 95207
  • Reassigned Medicare billing, California enrollment
  • 5 clinicians in this Medicare group
NPI 1730983131 (209) 645-2020
Orohealth Corporation A Non Profit Healthcare System
386 mi
Family Medicine
2767 OLIVE HWY
Oroville, CA 95966
  • Reassigned Medicare billing, California enrollment
  • 267 clinicians in this Medicare group
NPI 1013933167 (530) 533-8500

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 6

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 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.
340 services228 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
110 services86 patients
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.
34 services31 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
31 services31 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
19 services14 patients
Balloon dilation of artery of leg 37224
Balloon dilation of the leg artery is a procedure to improve blood flow. A tiny balloon is inserted into a narrowed artery, then inflated to widen the artery. This helps increase blood circulation to the leg. It's usually done under local anesthesia.
17 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93036 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
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$77.11 typical visit price
range $20.68 – $151.85
Typical copayment $19.27 (range $5.17 – $37.96)
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 3

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

KEVIN M MAJOR M.D.
Surgery (Vascular Surgery)
2841 N VENTURA RD, SUITE 200
OXNARD, CA 93036
Ventura County (805) 983-6233
DR. KAREN KIM QUIRK MD
Surgery (Vascular Surgery)
2841 N VENTURA RD, SUITE 200
OXNARD, CA 93036
Ventura County (805) 983-6233
GREGORY K ALBAUGH D.O.
Surgery (Vascular Surgery)
2841 N VENTURA RD, SUITE 200
OXNARD, CA 93036
Ventura County (805) 983-6233

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 Siddharth Agarwal's NPI number?

The NPI number for Siddharth Agarwal is 1407078496. It was assigned to this individual provider in the NPPES registry on May 2, 2007.

Where is Siddharth Agarwal located?

Siddharth Agarwal practices at 2841 N Ventura Rd Suite 200, Oxnard, CA 93036. The listed phone number is (805) 983-6233.

What is Siddharth Agarwal's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Siddharth Agarwal enrolled in Medicare?

Yes. Siddharth Agarwal 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 Siddharth Agarwal's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Siddharth Agarwal reassigns Medicare benefits to 6 organizations: County Of San Joaquin (Manteca, CA), Washington Township Medical Foundation (Fremont, CA), San Joaquin Faculty Medical Group (French Camp, CA), Aria Vascular A Professional Medical Corporation (Stockton, CA), Authority Vascular Surgery Incorporated (Stockton, CA) and 1 more organization, listed in the Medicare section above. 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 Siddharth Agarwal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Siddharth Agarwal was last updated on February 11, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.