Independent US Healthcare Provider Directory & Public Medical Database
Deactivated NPI 1619966090 Deactivated / Inactive NPI Male Practitioner

Dr. Stephanus H Ong , MD, FACC

Specialist • Murrieta, CA

Public Directory Information & Medical Disclaimer

This profile is compiled from official public domain records provided by CMS and the NPPES registry. TRUE-MEDINFO is an independent reference directory and does not provide medical advice, diagnosis, or treatment recommendations. Always consult a licensed medical professional for personal health decisions.

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Notice of NPI Deactivation & Inactive Practice Status

According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Stephanus Ong has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date October 18, 2005
NPI Deactivation Date March 20, 2019
Total Practice Duration ~14 Years of Practice (2005 – 2019)

Professional Overview & Biography Verified Profile Summary

Dr. Stephanus Ong, MD, FACC was a registered Specialist practicing in Murrieta, CA. Throughout an active medical career spanning 14 years, Dr. Ong provided care at the practice location at 25470 MEDICAL CENTER DR until profile deactivation on 2019-03-20.

Historical Medicare Part B clinical services included established patient outpatient office visit, injection, regadenoson, 0.1 mg, ultrasound of heart with color-depicted blood flow, rate, direction and valve function. Public procedure reimbursement records and service volume details are provided below for historical transparency.

Practice Location & Contact Primary Location

Practice Address

25470 Medical Center Dr
Ste 201

Murrieta, CA 925624900

Telephone 9516984433
Fax 9516987593
Associated Practice Facility / Clinic
🏢 Oscar A. Matthews Md Inc Facility NPI 1851380414

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Murrieta, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 33.0 Yrs
State Avg: 38.0 Yrs
Regional Practice Density
23 Specialists

Practicing in Murrieta, CA (6446 Statewide)

Telehealth Adoption Rate
17.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
41.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2018)
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes
188 140 $123.00 $75.62
J2785 Injection, regadenoson, 0.1 mg
160 40 $85.00 $55.63
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
113 112 $407.00 $222.23
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
107 94 $182.00 $111.45
A9500 Technetium tc-99m sestamibi, diagnostic, per study dose
78 39 $276.00 $119.75
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician
71 59 $132.00 $74.87
93000 Routine ekg using at least 12 leads including interpretation and report
63 63 $30.00 $17.67
93224 Electrocardiogram (ecg) 2-day continuous with review and report by health care professional
48 48 $162.00 $95.22
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect
40 40 $882.00 $524.02
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
34 31 $243.00 $150.10
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
17 17 $274.47 $169.26
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
15 15 $183.00 $111.39
93880 Ultrasound of both sides of head and neck blood flow
13 13 $345.00 $218.28

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License CA A34813

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners
NPI 1053484113

Doctor of Medicine (M.D.)

NPI 1184632606

Doctor of Medicine (M.D.)

Natasha Chong , MPH, RD

Dietitian, Registered

NPI 1699069781

Master of Public Health, Registered Dietitian

Julie Hartman , FNP

Nurse Practitioner - Family

NPI 1770222184

Family Nurse Practitioner

NPI 1992144893

Licensed Acupuncturist

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
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NPI Profile Deactivated March 20, 2019

Record deactivated on March 20, 2019

NPI Profile Active February 13, 2012

NPI status registered as active in NPPES database

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Updated Practice Location February 13, 2012

Registered at 25470 MEDICAL CENTER DR, STE 201, MURRIETA, CA 925624900 (Tel: 9516984433)

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Updated Business Mailing Address February 13, 2012

Registered at 25470 MEDICAL CENTER DR, STE 201, MURRIETA, CA 925624900 (Tel: 9516984433)

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Provider Name / Credentials Updated February 13, 2012

Recorded as STEPHANUS ONG, M.D., FACC

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Medical Taxonomy / Specialty Registered (Primary Specialty) February 13, 2012

Specialist (License #A34813 in CA)

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Initial NPI Registration & Enumeration October 18, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1619966090
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 18, 2005
Last Update: February 13, 2012
Deactivation Date: March 20, 2019

Mailing Address

25470 Medical Center Dr, Ste 201

Murrieta, CA 925624900

Phone: 9516984433

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.