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Active NPI 1629064464 Individual Practitioner Male Practitioner

Dr. Gregory J Shirk , DC

Chiropractor • Mason City, IA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gregory Shirk, DC is a certified Chiropractor practicing in Mason City, IA. With approximately 31 years of clinical experience since graduating from Palmer College Chiropractic - Davenport in 1995, Dr. Shirk delivers high-quality medical care to the local community at 630 1ST ST NW.

Dr. Shirk accepts Medicare assignment.

Frequently performed procedures and clinical services include chiropractic manipulative treatment, 3-4 spinal regions, chiropractic manipulative treatment, 1-2 spinal regions. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

630 1st St Nw

Mason City, IA 504012947

Telephone 6414234455
Fax 6414230354
Associated Practice Facility / Clinic
🏢 Shirk Pc Facility NPI 1558673442

Medicare Profile & Education

Medical School

Palmer College Chiropractic - Davenport

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Chiropractor in Mason City, IA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
31 Yrs +9.8 yrs vs City Avg
City Avg: 21.2 Yrs
State Avg: 21.9 Yrs
Regional Practice Density
14 Specialists

Practicing in Mason City, IA (2109 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
18.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Shirk (31 Years) 31 Yrs
Mason City Specialty Average (21.2 Years) 21.2 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
1,649 147 $45.00 $37.13
98940 Chiropractic manipulative treatment, 1-2 spinal regions
34 18 $32.00 $25.66

Medical Specialties & State Licenses

Chiropractor Primary Specialty

NUCC Taxonomy Code: 111N00000X

State License IA A05882

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

Medicaid State Provider ID
0121657 (IA)
Commercial Insurance / Payer ID Bcbs
59606 (IA)

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active November 19, 2014

NPI status registered as active in NPPES database

📍
Updated Practice Location November 19, 2014

Registered at 630 1ST ST NW, MASON CITY, IA 504012947 (Tel: 6414234455)

📍
Updated Business Mailing Address November 19, 2014

Registered at 630 1ST ST NW, MASON CITY, IA 504012947 (Tel: 6414234455)

👤
Provider Name / Credentials Updated November 19, 2014

Recorded as GREGORY SHIRK, DC

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 19, 2014

Chiropractor (License #A05882 in IA)

🟢
Initial NPI Registration & Enumeration September 27, 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: 1629064464
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 27, 2005
Last Update: November 19, 2014
Sole Proprietor: Yes

Mailing Address

630 1st St Nw

Mason City, IA 504012947

Phone: 6414234455

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.