Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Clinical Diagnostics Inc

Q: What is the NPI number for Clinical Diagnostics Inc?

The NPI for Clinical Diagnostics Inc is 1336229582, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Medical Laboratory in Baltimore, MD · enumerated 2006 · authorized official Liya Pfeffer, Owner.

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

National Provider Identifier

1336229582

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Registry record

Entity type Organization (Type 2)

Legal business name Clinical Diagnostics Inc

Practice address 6918 Ridge Rd, Baltimore, MD, 21237

Phone (410) 687-4400

Fax (410) 687-4495

Enumeration date Oct 16, 2006

Last updated in NPPES Nov 29, 2007

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License D35410 (MD) Primary

Authorized official

Name Liya Pfeffer

Title Owner

Phone (410) 687-4400

Other identifiers

Identifier	Type	State	Issuer
713400200	Medicaid	MD	-

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 is the NPI number for Clinical Diagnostics Inc?

The NPI for Clinical Diagnostics Inc is 1336229582, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Clinical Diagnostics Inc?

NPPES lists Liya Pfeffer (Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Nachum Pfeffer Cardiovascular Disease Physician · Baltimore, MD NPI 1841394848 Liya Pfeffer Internal Medicine Physician · Baltimore, MD NPI 1326142316 Laurel Balanda Clinical Social Worker · Rosedale, MD NPI 1417048380 L & N Pfeffer MD PA Internal Medicine Physician · Baltimore, MD NPI 1902995616 S & R Pharmacy LLC Community/Retail Pharmacy · Baltimore, MD NPI 1134295207 Ronald Distler Psychiatric/Mental Health Nurse Practitioner · Rosedale, MD NPI 1114081924 Harvey Gewanter Clinical Psychologist · Baltimore, MD NPI 1255485546 Harvey L Gewanter Phd and Associates Clinical Psychologist · Baltimore, MD NPI 1912051210

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-29.