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SHERIN K SHIRAZI M.D.
NPI 1659438984
Surgery - Surgical Oncology in Pasadena, CA

Active since January 03, 2007PECOS EnrolledAccepts Medicare Assignment
950 S ARROYO PKWY STE 310, PASADENA, CA 91105(626) 795-9023(626) 797-1731 Get Directions Write a Review

NPPES record last updated: September 29, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Sherin K Shirazi M.d. NPPES

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

SHERIN K SHIRAZI M.D. (NPI 1659438984) is an individual surgical oncology provider in Pasadena, California, licensed in California (A62828) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Emory University School Of Medicine (2001).

NPPES Registry Identity

NPI1659438984
Entity TypeIndividualFemale
Primary Taxonomy2086X0206X
Provider Legal NameSHERIN K SHIRAZICredential: M.D.
Location Address950 S ARROYO PKWY STE 310Pasadena, CA 91105-3930
Mailing Address35 E Glenarm StPasadena, CA 91105-3418 · (626) 768-4415 · Fax (626) 403-0321
Phone(626) 795-9023
Fax(626) 797-1731
Sole ProprietorYes
Medical School CMSEmory University School Of MedicineGraduated 2001
Enumeration DateJanuary 3, 2007
Last NPPES UpdateSeptember 29, 2025
NPPES CertifiedSeptember 29, 2025
✔ NPI 1659438984 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Surgical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2086X0206X
License✔ Licensed in CA · A62828
Definition
A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.
Also ListedSurgeryTaxonomy 208600000X · License 62828 (CA)
950 S ARROYO PKWY STE 310, Pasadena, CA 91105
Open in Google Maps ↗

Other Identifiers 2

Other00A628280CA · Blue Shield
OtherA62828CA · License

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

Sherin K Shirazi 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 ID7517857949
PECOS Enrollment IDI20040318000606
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 Sherin Shirazi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Premiere Surgical Specialists, A Professional Corporation
Same address
Surgery
950 S ARROYO PKWY STE 250
Pasadena, CA 91105
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1710319017 (626) 963-6026
Southern California Surgical Specialists, Inc.
2.4 mi
Surgery
1044 S FAIR OAKS AVE, SUITE 301
Pasadena, CA 91105
  • Reassigned Medicare billing, California enrollment
NPI 1700910262 (626) 795-9023

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 3

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.

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.
28 services15 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.
22 services22 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
14 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91105 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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 4

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

DR. STEPHEN D DUFFY M.D.
Plastic Surgery
950 S ARROYO PKWY STE 310
PASADENA, CA 91105
Los Angeles County (626) 449-4859
PREMIERE PLASTIC SURGERY INC
Specialist
950 S ARROYO PKWY STE 310
PASADENA, CA 91105
Los Angeles County (626) 449-4859
JAMES A RECABAREN MD
Surgery
950 S ARROYO PKWY STE 310
PASADENA, CA 91105
Los Angeles County (626) 449-4859
BRIAN A. COX M.D.
Plastic Surgery
950 S ARROYO PKWY STE 310
PASADENA, CA 91105
Los Angeles County (626) 449-4859

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 Sherin Shirazi's NPI number?

The NPI number for Sherin Shirazi is 1659438984. It was assigned to this individual provider in the NPPES registry on January 3, 2007.

Where is Sherin Shirazi located?

Sherin Shirazi practices at 950 S Arroyo Pkwy Ste 310, Pasadena, CA 91105. The listed phone number is (626) 795-9023.

What is Sherin Shirazi's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.

Is Sherin Shirazi enrolled in Medicare?

Yes. Sherin Shirazi 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 Sherin Shirazi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sherin Shirazi reassigns Medicare benefits to 2 organizations: Premiere Surgical Specialists, A Professional Corporation (Pasadena, CA) and Southern California Surgical Specialists, Inc. (Pasadena, 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 Sherin Shirazi'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 Sherin Shirazi was last updated on September 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.