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Dr. Sandra A Mathur , DO

Pediatrics • Diamond Bar, CA

Active NPI 1841250974 Individual Practitioner Female Practitioner
Practice location in NPPES

1514 Valley Vista Dr
Diamond Bar, CA 917653929

Call 9098601144 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1514 Valley Vista Dr

Diamond Bar, CA 917653929

Telephone 9098601144
Fax 9098603526
Organization at the Same NPPES Address or Phone
Providence Medical Foundation Facility NPI 1285890624

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Chino Hills, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Open Payments general payments, program year 2024

All general payments: $145.89 across 7 records.

By nature of payment

  • Food and Beverage: $145.89 across 7 records.

Reporting-company totals (3 largest of 4)

  • GlaxoSmithKline, LLC.: $49.27 across 2 records.
  • Pfizer Inc.: $46.28 across 2 records.
  • Novo Nordisk Inc: $36.27 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).

Guide: How to read an Open Payments record

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Mathur has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Mathur as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Diamond Bar and California

5 active clinicians are listed under Pediatrics with a practice address in Diamond Bar, CA (9,280 in California).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2024
Disclosure Year:

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $145.89.

Manufacturer Payment Nature Product Type Amount ($)
Pfizer Inc.
Food and Beverage
In-kind items and services
NURTEC ODT General $26.94
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
BEXSERO General $24.91
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
SHINGRIX General $24.36
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $21.14
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $19.34
Novo Nordisk Inc
Food and Beverage
In-kind items and services
— General $15.13
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
FARXIGA General $14.07

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2022-02-08
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

License # reported to NPPES CA 20A6905

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PEDIATRIC MEDICINE

Medicare Enrollment ID

I20110107000303

Enrollment State Jurisdiction

CA

PECOS Control ID

3678762564

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Secondary Practice Locations

15881 Pomona Rincon Rd Bldg 4

Chino Hills, CA 917093162

Phone: 9099292511

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

14 listed
Silvia Alonzo , MS, PA-C

Physician Assistant - Medical

NPI 1942586623

Master of Science, Physician Assistant (Certified)

Dr. Emily Krasowsky , MD

Obstetrics & Gynecology

NPI 1669933552

Doctor of Medicine (M.D.)

Keli Layton-Cunnigan , PA

Physician Assistant

NPI 1063613958

Physician Assistant

Dr. Eric Lee , DO

Family Medicine

NPI 1801208707

Doctor of Osteopathic Medicine (D.O.)

Dr. Lilian Li , DO

Family Medicine

NPI 1730717737

Doctor of Osteopathic Medicine (D.O.)

Dr. Anne Liao , MD

Obstetrics & Gynecology

NPI 1164099487

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
📍
Updated Business Mailing Address January 16, 2019

Registered at 1514 VALLEY VISTA DR, DIAMOND BAR, CA 917653929 (Tel: 9098601144)

âś…
NPI Profile Active April 23, 2013

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) April 23, 2013

Registered at 1514 VALLEY VISTA DR, DIAMOND BAR, CA 917653929 (Tel: 9098601144)

📍
Business Mailing Address (Initial Record) April 23, 2013

Registered at 279 IMPERIAL HWY, SUITE 730, FULLERTON, CA 928351041 (Tel: 7144494841)

👤
Provider Name / Credentials (Initial Record) April 23, 2013

Recorded as SANDRA MATHUR, DO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 23, 2013

Pediatrics (license number reported to NPPES: CA 20A6905)

🟢
Initial NPI Registration & Enumeration March 24, 2006

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1841250974
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 24, 2006
Last Update: February 08, 2022
Sole Proprietor: No

Mailing Address

1514 Valley Vista Dr

Diamond Bar, CA 917653929

Phone: 9098601144

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.