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Active NPI 1912055195 Individual Practitioner Male Practitioner

Dr. Stephen V Sum , DC

Chiropractor • Castro Valley, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Stephen Sum, DC is a certified Chiropractor practicing in Castro Valley, CA. With approximately 39 years of clinical experience since graduating from Life Chiropractic College - West in 1987, Dr. Sum delivers high-quality medical care to the local community at 20406 REDWOOD RD.

Dr. Sum accepts Medicare assignment.

Frequently performed procedures and clinical services include chiropractic manipulative treatment, 3-4 spinal regions, chiropractic manipulative treatment, 5 spinal regions. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

20406 Redwood Rd
D

Castro Valley, CA 945464317

Telephone 5105381111
Fax 5105381040
Associated Practice Facility / Clinic
🏢 Sum Family Chiropractic Facility NPI 1801543590

Medicare Profile & Education

Medical School

Life Chiropractic College - West

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Chiropractor in Castro Valley, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
39 Yrs +16.7 yrs vs City Avg
City Avg: 22.3 Yrs
State Avg: 27.5 Yrs
Regional Practice Density
35 Specialists

Practicing in Castro Valley, CA (12100 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
37.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Sum (39 Years) 39 Yrs
Castro Valley Specialty Average (22.3 Years) 22.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions
168 20 $75.00 $46.74

Medical Specialties & State Licenses

Chiropractor Primary Specialty

NUCC Taxonomy Code: 111N00000X

State License CA 18971

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Ptan
DC0189710 (CA)
Commercial Insurance / Payer ID Chiropractic License
DC18971 (CA)
Commercial Insurance / Payer ID Blue Shield
DC0189710 (CA)

Practice Associates & Co-Workers

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

3 Associated Practitioners
NPI 1659119956

Doctor of Chiropractic

Justin Mariano

Chiropractor

NPI 1760210728
NPI 1982273355

Doctor of Chiropractic

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active October 23, 2015

NPI status registered as active in NPPES database

📍
Updated Practice Location October 23, 2015

Registered at 20406 REDWOOD RD, D, CASTRO VALLEY, CA 945464317 (Tel: 5105381111)

📍
Updated Business Mailing Address October 23, 2015

Registered at 15520 ROCKFIELD BLVD A200, IRVINE, CA 926186705 (Tel: 9495989999)

👤
Provider Name / Credentials Updated October 23, 2015

Recorded as STEPHEN SUM, D.C.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 23, 2015

Chiropractor (License #18971 in CA)

🟢
Initial NPI Registration & Enumeration January 06, 2007

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: 1912055195
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 06, 2007
Last Update: October 23, 2015
Sole Proprietor: Yes

Mailing Address

15520 Rockfield Blvd A200

Irvine, CA 926186705

Phone: 9495989999

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.