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NAJJIA SHAHABUDDIN AHMED M.D.
NPI 1699110395
Pediatrics in Fontana, CA

Active since May 08, 2013PECOS Enrolled
9985 SIERRA AVE, FONTANA, CA 92335(909) 427-5000(909) 427-5000 Get Directions Write a Review

NPPES record last updated: December 14, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 14, 2021, Oct 19, 2016 (2 updates tracked since 2016).

About Najjia Shahabuddin Ahmed M.d. NPPES

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

NAJJIA SHAHABUDDIN AHMED M.D. (NPI 1699110395) is an individual pediatrics provider in Fontana, California, licensed in California (A134496) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699110395
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameNAJJIA SHAHABUDDIN AHMEDCredential: M.D.
Location Address9985 SIERRA AVEFontana, CA 92335-6720
Mailing Address9985 Sierra AveFontana, CA 92335-6720 · (909) 427-5000
Phone(909) 427-5000
Fax(909) 427-5000
Sole ProprietorNo
Enumeration DateMay 8, 2013
Last NPPES UpdateDecember 14, 20212 updates tracked since enumeration
NPPES CertifiedDecember 14, 2021
✔ NPI 1699110395 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A134496
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.
9985 SIERRA AVE, Fontana, CA 92335
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Other Names 1

Former Name (1)Najjia Shahabuddin

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Najjia Shahabuddin Ahmed 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 Reassignment

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

Southern California Permanente Medical Group
0.2 mi
Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 5,228 clinicians in this Medicare group
NPI 1689606196 (909) 427-3910

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 92335 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.

NAINESH K. GANDHI MD
Internal Medicine (Cardiovascular Disease)
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (866) 454-3485
DR. PAYMON MESGARZADEH M.D.
Internal Medicine (Cardiovascular Disease)
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
DR. MARK JONATHAN LANDAU M.D., PH.D.
Plastic Surgery
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (833) 574-2273
DR. YUJIAN GUO M.D.
Psychiatry & Neurology (Neurology)
9985 SIERRA AVE, MOB-2, BASEMENT
FONTANA, CA 92335
San Bernardino County (909) 427-5000
MANUEL RICARDO MOJICA JR. M.D.
Internal Medicine
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
MR. FRED GADEA III
Physical Therapy Assistant
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
DR. ADEEL HUSAIN M.D.
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
PATRICIA LOTICH OTR
Occupational Therapist
9985 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-6996

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 Najjia Ahmed's NPI number?

The NPI number for Najjia Ahmed is 1699110395. It was assigned to this individual provider in the NPPES registry on May 8, 2013. The provider is also known as Najjia Shahabuddin.

Where is Najjia Ahmed located?

Najjia Ahmed practices at 9985 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-5000.

What is Najjia Ahmed's specialty?

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

Is Najjia Ahmed enrolled in Medicare?

Yes. Najjia Ahmed is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Najjia Ahmed's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Najjia Ahmed reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, 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 Najjia Ahmed'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 Najjia Ahmed was last updated on December 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.