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MAHEEN SIDDIQI MD
NPI 1346654878
Pediatrics in Pasadena, CA

Active since June 12, 2014PECOS Enrolled
800 FAIRMOUNT AVE STE 415, PASADENA, CA 91105(626) 449-8440 Get Directions Write a Review

NPPES record last updated: January 29, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Maheen Siddiqi Md NPPES

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

MAHEEN SIDDIQI MD (NPI 1346654878) is an individual pediatrics provider in Pasadena, California, licensed in Illinois (125-065136) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1346654878
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMAHEEN SIDDIQICredential: MD
Location Address800 FAIRMOUNT AVE STE 415Pasadena, CA 91105-3154
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Phone(626) 449-8440
Sole ProprietorNo
Enumeration DateJune 12, 2014
Last NPPES UpdateJanuary 29, 2021
NPPES CertifiedJanuary 29, 2021
✔ NPI 1346654878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in IL · 125-065136
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
800 FAIRMOUNT AVE STE 415, Pasadena, CA 91105
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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)

Maheen Siddiqi Md 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 Reassignment

Medicare enrollment records show Maheen Siddiqi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Regents Of The University Of California
17 mi
Internal Medicine
200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 1,766 clinicians in this Medicare group
NPI 1235107566 (310) 794-1276

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 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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

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

ALLYSON REGINE SELF-STOICO M.D.
Pediatrics
800 FAIRMOUNT AVE STE 415
PASADENA, CA 91105
Los Angeles County (626) 449-8440

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 Maheen Siddiqi's NPI number?

The NPI number for Maheen Siddiqi is 1346654878. It was assigned to this individual provider in the NPPES registry on June 12, 2014.

Where is Maheen Siddiqi located?

Maheen Siddiqi practices at 800 Fairmount Ave Ste 415, Pasadena, CA 91105. The listed phone number is (626) 449-8440.

What is Maheen Siddiqi's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Maheen Siddiqi enrolled in Medicare?

Yes. Maheen Siddiqi is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maheen Siddiqi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maheen Siddiqi reassigns Medicare benefits to The Regents Of The University Of California (Los Angeles, CA). The 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 Maheen Siddiqi'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 Maheen Siddiqi was last updated on January 29, 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.