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ZANA SHIRWAN M.D.
NPI 1457700544
Family Medicine in Riverside, CA

Active since June 08, 2016PECOS Enrolled
3390 UNIVERSITY AVE STE 100, RIVERSIDE, CA 92501(951) 827-7793(951) 335-0058 Get Directions Write a Review

NPPES record last updated: January 26, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 26, 2021, Sep 9, 2019 (2 updates tracked since 2019).

About Zana Shirwan M.d. NPPES

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

ZANA SHIRWAN M.D. (NPI 1457700544) is an individual family medicine provider in Riverside, California, licensed in California (A157813) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457700544
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameZANA SHIRWANCredential: M.D.
Location Address3390 UNIVERSITY AVE STE 100Riverside, CA 92501-3315
Mailing Address3390 University Ave Ste 100Riverside, CA 92501-3315 · (951) 827-7793 · Fax (951) 335-0058
Phone(951) 827-7793
Fax(951) 335-0058
Sole ProprietorNo
Enumeration DateJune 8, 2016
Last NPPES UpdateJanuary 26, 20212 updates tracked since enumeration
NPPES CertifiedJanuary 26, 2021
✔ NPI 1457700544 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A157813
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
3390 UNIVERSITY AVE STE 100, Riverside, CA 92501
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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 (PECOS)

Zana Shirwan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Zana Shirwan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Inpatient Specialists Of California, PC
12 mi
Internal Medicine
2101 N WATERMAN AVE
San Bernardino, CA 92404
  • Reassigned Medicare billing, California enrollment
  • 1,216 clinicians in this Medicare group
NPI 1952792475 (615) 377-5658
First Choice Physician Partners
25 mi
Family Medicine
500 S ANAHEIM HILLS RD, STE 242
Anaheim, CA 92807
  • Reassigned Medicare billing, California enrollment
  • 488 clinicians in this Medicare group
NPI 1083966691 (714) 974-0611

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92501 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
Most-billed visit code 99214
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.

DR. DENISE A MARTINEZ M.D.
Family Medicine
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
DR. ELIZABETH A JACOBS MD
Internal Medicine
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
DR. EDWARD TRONCOSO MD
Internal Medicine
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
ARUNIMA BERA BROWN
Pediatrics (Pediatric Critical Care Medicine)
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
DR. BLANCA SAMIRA CAMPOS MD
Family Medicine
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
MICHELLE A BHOLAT MD
Family Medicine
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
DR. SASIDHARAN PONTHENKANDATH M.D.
Pediatrics (Neonatal-Perinatal Medicine)
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000
DR. PABLO A JOO M.D.
Family Medicine
3390 UNIVERSITY AVE STE 100
RIVERSIDE, CA 92501
Riverside County (844) 827-8000

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 Zana Shirwan's NPI number?

The NPI number for Zana Shirwan is 1457700544. It was assigned to this individual provider in the NPPES registry on June 8, 2016.

Where is Zana Shirwan located?

Zana Shirwan practices at 3390 University Ave Ste 100, Riverside, CA 92501. The listed phone number is (951) 827-7793.

What is Zana Shirwan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Zana Shirwan enrolled in Medicare?

Yes. Zana Shirwan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Zana Shirwan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Zana Shirwan reassigns Medicare benefits to 2 organizations: Inpatient Specialists Of California, PC (San Bernardino, CA) and First Choice Physician Partners (Anaheim, CA). 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 Zana Shirwan'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 Zana Shirwan was last updated on January 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.