John David R. Mezger , CDCA, LSW

Social Worker • Columbus, OH

Active NPI 1134745029 Individual Practitioner Male Practitioner

Practice location in NPPES

100 Highview Blvd
Columbus, OH 432076023

Call 5139414999 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.

John Mezger is listed in NPPES under Social Worker.
NPI assigned on June 17, 2020; this date does not establish years in practice.
No Medicare Part B / Part D records for this NPI in the CMS files shown here. CMS covers only Medicare fee-for-service / Part D claims and omits records with fewer than 11 beneficiaries, so this does not show whether the provider accepts Medicare or prescribes.

Practice Location & Contact Primary Location

Practice Address

100 Highview Blvd

Columbus, OH 432076023

Telephone 5139414999

Fax 5136940168

Before You Book

Paying without insurance? Prepare a cost-estimate request

Ask about interpreters and office accessibility

Organization at the Same NPPES Address or Phone

Medical Wellness Group Llc Facility NPI 1225419914

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 11 distinct additional practice-address records in Cincinnati, OH; Dayton, OH; Florence, KY and 6 more. 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.

What Public CMS Data Show

These CMS figures cover limited populations and published records; they are not quality ratings or medical advice.

Social Worker: NPPES taxonomy is a reported classification, not proof of board certification.

NPI first issued

2020

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

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, CMS release of October 2, 2026; 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, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Compared with the same specialty in Columbus and Ohio

1,488 active clinicians are listed under Social Worker with a practice address in Columbus, OH (11,579 in Ohio).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Columbus

0.4% of these 1,488 clinicians have the CMS telehealth indicator.

1.7% of these 1,488 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-11-01

Social Worker Primary Specialty

NUCC Taxonomy Code: 104100000X

License # reported to NPPES OH S.2411242

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

Counselor - Addiction (Substance Use Disorder)

NUCC Taxonomy Code: 101YA0400X

License # reported to NPPES OH CDCA.177028

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: State Medical Board of Ohio.

Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID

0409086 (OH)

Secondary Practice Locations

247 Cic Blvd

West Union, OH 456937512

Phone: 5139414999

1907 11th St

Portsmouth, OH 456624531

Phone: 5139414999

680 Northland Blvd

Cincinnati, OH 452403248

Phone: 5139414999

6460 Harrison Ave Ste 200

Cincinnati, OH 452477958

Phone: 5139414999

1435 Cincinnati St

Dayton, OH 454174614

Phone: 5139414999

25 Whitney Dr Ste 122

Milford, OH 451508400

Phone: 5139414999

7075 Industrial Rd Ste A

Florence, KY 410423053

Phone: 5139414999

1130 Garbry Rd

Piqua, OH 453568217

Phone: 5139414999

1718 Central Pkwy

Cincinnati, OH 452142355

Phone: 5139414999

1421 Parker Ct

Springfield, OH 455042855

Phone: 5139414999

160 N Breiel Blvd

Middletown, OH 450423806

Phone: 5139414999

Clinicians Sharing This Practice Address or Phone

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

6 listed

Christopher Aviles

Family Medicine

NPI 1265521066

Patti Ellison

Nurse Practitioner

NPI 1144260035

Arshad Javed

Internal Medicine

NPI 1306895842

Stacey Poe

Nurse Practitioner - Family

NPI 1285024588

Julie Schulkers

Nurse Practitioner - Family

NPI 1235659194

Amanda Wallace

Nurse Practitioner - Family

NPI 1154844041

Career & Practice History Timeline

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

26 Historical Events

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