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Dr. Mark H. Katz, MD

Urology Physician in Boston, MA · enumerated 2009.

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

National Provider Identifier

1437390507

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark H. Katz
Credential MD
Sex Male
Practice address 725 Albany St, Suite 3b, Shapiro Bldg, Boston, MA, 02118
Phone (617) 638-8485
Fax (617) 414-7372
Enumeration date Mar 18, 2009
Last updated in NPPES Feb 11, 2026

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 240823 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
3115617 Medicaid NH -
110216741A Medicaid MA -

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.

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Frequently asked questions

Where does Mark Katz practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Katz?
The National Provider Identifier (NPI) for Mark Katz is 1437390507, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-11.