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DR. THEODORE CHIWAN NG M.D.
NPI 1689841322
Pediatrics in La Mesa, CA

Active since May 12, 2008PECOS Enrolled
3875 AVOCADO BLVD, LA MESA, CA 91941(800) 290-5828 Get Directions Write a Review

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Theodore Chiwan Ng M.d. NPPES

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

DR. THEODORE CHIWAN NG M.D. (NPI 1689841322) is an individual pediatrics provider in La Mesa, California, licensed in California (A97477) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689841322
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. THEODORE CHIWAN NGCredential: M.D.
Location Address3875 AVOCADO BLVDLa Mesa, CA 91941-7303
Mailing Address3875 Avocado BlvdLa Mesa, CA 91941-7303 · (800) 290-5828
Phone(800) 290-5828
Sole ProprietorNo
Enumeration DateMay 12, 2008
Last NPPES UpdateDecember 1, 2021
✔ NPI 1689841322 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A97477
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.
3875 AVOCADO BLVD, La Mesa, CA 91941
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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)

Dr. Theodore Chiwan Ng 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 Theodore Ng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
8.3 mi
Health Maintenance Organization
4647 ZION AVE
San Diego, CA 92120
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1225060742 (619) 528-5000

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 91941 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 10

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

MR. NEIL RICHARD HIRSCHORN R.PH.
Pharmacist
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (619) 670-2050
DR. DANIEL G WALLACE MD
Internal Medicine
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (800) 290-5000
ALLISEN QUYNH NHU PHAM NGUYEN MD
Family Medicine
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (833) 574-2273
KIMBERLEY GLASSON RPH
Pharmacist
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (619) 670-2050
SAMUEL C HU R.PH.
Pharmacist
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (619) 670-2050
HAIRAN ZHU
Internal Medicine
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (619) 851-0992
DR. UMAR SHARIFF MD
Family Medicine
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (833) 574-2273
DARCY FOX MOCK M.D.
Internal Medicine
3875 AVOCADO BLVD
LA MESA, CA 91941
San Diego County (800) 290-5000

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 Theodore Ng's NPI number?

The NPI number for Theodore Ng is 1689841322. It was assigned to this individual provider in the NPPES registry on May 12, 2008.

Where is Theodore Ng located?

Theodore Ng practices at 3875 Avocado Blvd, La Mesa, CA 91941. The listed phone number is (800) 290-5828.

What is Theodore Ng's specialty?

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

Is Theodore Ng enrolled in Medicare?

Yes. Theodore Ng is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Theodore Ng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theodore Ng reassigns Medicare benefits to Southern California Permanente Medical Group (San Diego, 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 Theodore Ng'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 Theodore Ng was last updated on December 1, 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.