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Steven Decierdo Mock , PA-C

Physician Assistant β€’ Olympia, WA

Active NPI 1366727976 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3901 Capital Mall Dr Sw Ste A
Olympia, WA 985028654

Call 3605703460 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

3901 Capital Mall Dr Sw Ste A

Olympia, WA 985028654

Telephone 3605703460
Fax 3607869010
Organization at the Same NPPES Address or Phone
Olympia Orthopaedic Associates, Pllc Facility NPI 1144490145

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 Olympia, WA. See the list

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

CMS Doctors and Clinicians lists 1 group name: Olympia Orthopaedic Associates Pllc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

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

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2011

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2021–2025.

Guide: How to read an Open Payments record

Years since graduation

15 years (graduated 2011)

CMS Doctors and Clinicians data list 2011 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2011

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.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

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, β€œDoes 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)

Steven Mock 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 Steven Mock 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 Olympia and Washington

108 active clinicians are listed under Physician Assistant with a practice address in Olympia, WA (3,718 in Washington).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Olympia

12% of these 108 clinicians have the CMS telehealth indicator.

66.7% of these 108 clinicians are listed by CMS as accepting Medicare assignment.

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

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-06-08
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES WA PA60828004

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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: Washington State Department of Health Provider Lookup.
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 - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20240706000257

Enrollment State Jurisdiction

WA

PECOS Control ID

4284178815

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.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Olympia Orthopaedic Associates Pllc

615 Lilly Rd Ne, Olympia, WA 985065117

Phone: 3604914211

Secondary Practice Locations

3901 Capital Mall Dr Sw Ste B

Olympia, WA 985028654

Phone: 3605288571

Clinicians Sharing This Practice Address or Phone

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

19 listed
Dr. Trevor Barronian , MD

Orthopaedic Surgery

NPI 1467868265

Doctor of Medicine (M.D.)

Dr. David Brown , MD

Family Medicine - Sports Medicine

NPI 1831287010

Doctor of Medicine (M.D.)

Dr. Gregory Byrd , MD

Orthopaedic Surgery - Hand Surgery

NPI 1992959746

Doctor of Medicine (M.D.)

NPI 1023578945

Doctor of Osteopathic Medicine (D.O.)

Dr. Clyde Carpenter , MD

Orthopaedic Surgery - Orthopaedic Surgery of the Spine

NPI 1205906294

Doctor of Medicine (M.D.)

Jared Cornelison , PA-C

Physician Assistant

NPI 1093068595

Physician Assistant (Certified)

Career & Practice History Timeline

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

11 Historical Events
πŸ“
Updated Practice Location June 08, 2026

Registered at 3901 CAPITAL MALL DR SW STE A, OLYMPIA, WA 985028654 (Tel: 3605703460)

πŸ“
Updated Business Mailing Address June 08, 2026

Registered at PO BOX 368, OLYMPIA, WA 985070368 (Tel: 3604555144)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 08, 2026

Physician Assistant (license number reported to NPPES: WA PA60828004)

πŸ“
Updated Practice Location December 27, 2019

Registered at MADIGAN ARMY MEDICAL CENTER 9040 JACKSON AVE, TACOMA, WA 984310001 (Tel: 2539684000)

πŸ“
Updated Business Mailing Address December 27, 2019

Registered at MADIGAN ARMY MEDICAL CENTER 9040 JACKSON AVE, TACOMA, WA 984310001 (Tel: 2539684000)

βœ…
NPI Profile Active October 14, 2011

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) October 14, 2011

Registered at MADIGAN ARMY MEDICAL CTR, 9040 REID ST., ATTN: MCHJ-QCR, TACOMA, WA 984310001 (Tel: 2539682252)

πŸ“
Business Mailing Address (Initial Record) October 14, 2011

Registered at MADIGAN ARMY MEDICAL CTR, 9040 REID ST., ATTN: MCHJ-QCR, TACOMA, WA 984310001 (Tel: 2539682252)

πŸ‘€
Provider Name / Credentials (Initial Record) October 14, 2011

Recorded as STEVEN MOCK, PA-C

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 14, 2011

Physician Assistant (license number reported to NPPES: KS 1098271)

🟒
Initial NPI Registration & Enumeration October 14, 2011

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1366727976
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 14, 2011
Last Update: June 08, 2026
Sole Proprietor: No

Other Physician Assistants in Olympia

All Physician Assistants in Olympia

Mailing Address

Po Box 368

Olympia, WA 985070368

Phone: 3604555144

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.