Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brock Armstrong Liden, D.P.M.

Primary Podiatric Medicine Podiatrist in Circleville, OH · enumerated 2005 · practices at Oh Independent Medical Group LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1598762692

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Registry record

Entity type Individual (Type 1)

Name Brock Armstrong Liden

Credential D.P.M.

Sex Male

Practice address 210 Sharon Rd Ste A, Circleville, OH, 43113

Phone (740) 474-3850

Fax (888) 821-9123

Enumeration date Jul 5, 2005

Last updated in NPPES Jun 8, 2021

Taxonomy & licenses

213EP1101X Primary Podiatric Medicine Podiatrist Podiatric Medicine & Surgery Service Providers · License 36-00-3103-L (OH) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier	Type	State	Issuer
7887840001	Other	OH	NATIONAL SUPPLIER CLEARINGHOUSE
2095281	Medicaid	OH	-
P00287259	Other	-	RR MEDICARE R PIN

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Brock Liden?

Brock Liden is registered in NPPES with the primary taxonomy of Primary Podiatric Medicine Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Oh Independent Medical Group LLC Durable Medical Equipment & Medical Supplies · Circleville, OH NPI 1114753431

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-08.