Dr. Robert Katz, PH.D

Dr. Robert Katz is a Clinical Psychologist provider (Psychologist) practicing in Laurel, MD, registered in the NPPES registry with NPI 1740409515 since 2007. The credential PHD stands for Doctor of Philosophy.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1740409515
Entity type	Individual (Type 1)
Name	Dr. Robert Katz
Credential	PH.D
Sex	Male
Practice address	Laurel, MD, 20707
Phone	3014900550
Fax	3014909758
Enumeration date	2007-04-24
Last updated in NPPES	2007-07-08

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103TC0700X	Clinical Psychologist	Primary	02832	MD

PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Copy-ready billing details

Provider: Robert Katz, PH.D
NPI: 1740409515
Taxonomy: 103TC0700X (Clinical Psychologist)
Address: Laurel, MD, 20707

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1538155098	Diane Altscher	Individual	Counseling Psychologist	Laurel, MD
1558324517	Jill Carlson	Individual	Child & Adolescent Psychiatry Physician	Laurel, MD
1952424756	Barbara Cohl	Individual	Psychologist	Laurel, MD
1932313566	Craig White	Individual	Surgery Physician	Laurel, MD

Verify this record

Cross-check NPI 1740409515 against the authoritative CMS record: view Dr. Robert Katz on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

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.

What specialty is Robert Katz?

Robert Katz is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.