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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ZULEIKHA NAJEEB MD
NPI 1528646668
Internal Medicine - Endocrinology, Diabetes & Metabolism in Pasadena, CA

Active since March 30, 2021PECOS Enrolled
55 E CALIFORNIA BLVD STE 204, PASADENA, CA 91105(626) 397-8323(626) 397-3611 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Sep 23, 2026, Mar 30, 2021 (2 updates tracked since 2021).

About Zuleikha Najeeb Md NPPES

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

ZULEIKHA NAJEEB MD (NPI 1528646668) is an individual endocrinology, diabetes & metabolism provider in Pasadena, California, licensed in California (A193252) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1528646668
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameZULEIKHA NAJEEBCredential: MD
Location Address55 E CALIFORNIA BLVD STE 204Pasadena, CA 91105-3954
Mailing Address55 E California Blvd Ste 204Pasadena, CA 91105-3954 · (626) 397-8323 · Fax (626) 397-3611
Phone(626) 397-8323
Fax(626) 397-3611
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateMarch 30, 2021
Last NPPES UpdateSeptember 23, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2026
✔ NPI 1528646668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A193252
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
55 E CALIFORNIA BLVD STE 204, Pasadena, CA 91105
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Zuleikha Najeeb Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6800354838
PECOS Enrollment IDI20260819003050
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 Zuleikha Najeeb reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Huntington Medical Foundation
0.2 mi
Internal Medicine
100 W CALIFORNIA BLVD
Pasadena, CA 91105
  • Reassigned Medicare billing, California enrollment
  • 204 clinicians in this Medicare group
NPI 1154467181 (626) 397-8335

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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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 6

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

ANNA NEWBY M.S., R.D., L.D.
Dietitian, Registered
55 E CALIFORNIA BLVD STE 204
PASADENA, CA 91105
Los Angeles County (626) 397-8323
DARICE T YANG M.D.
Internal Medicine (Rheumatology)
55 E CALIFORNIA BLVD STE 204
PASADENA, CA 91105
Los Angeles County (626) 397-8323
CEDRIC NG M.D.
Pediatrics (Pediatric Endocrinology)
55 E CALIFORNIA BLVD STE 204
PASADENA, CA 91105
Los Angeles County (626) 397-8323
DR. MAHTAB SOHREVARDI MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 E CALIFORNIA BLVD STE 204
PASADENA, CA 91105
Los Angeles County (626) 397-8323
DR. YANG SHEN M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 E CALIFORNIA BLVD STE 204
PASADENA, CA 91105
Los Angeles County (626) 397-8323
HUNTINGTON MEDICAL FOUNDATION
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 E CALIFORNIA BLVD STE 204
PASADENA, CA 91105
Los Angeles County (626) 397-8335

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 Zuleikha Najeeb's NPI number?

The NPI number for Zuleikha Najeeb is 1528646668. It was assigned to this individual provider in the NPPES registry on March 30, 2021.

Where is Zuleikha Najeeb located?

Zuleikha Najeeb practices at 55 E California Blvd Ste 204, Pasadena, CA 91105. The listed phone number is (626) 397-8323.

What is Zuleikha Najeeb's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Zuleikha Najeeb enrolled in Medicare?

Yes. Zuleikha Najeeb is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Zuleikha Najeeb's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Zuleikha Najeeb reassigns Medicare benefits to The Huntington Medical Foundation (Pasadena, 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 Zuleikha Najeeb'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 Zuleikha Najeeb was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.