Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Steven Grenitz, M.D.

Q: What is the NPI number for Mark Grenitz?

The National Provider Identifier (NPI) for Mark Grenitz is 1790746279, a Type 1 (individual) record in the CMS NPPES registry.

Obstetrics & Gynecology Physician in Plantation, FL · enumerated 2006.

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

National Provider Identifier

1790746279

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mark Steven Grenitz

Credential M.D.

Sex Male

Practice address 220 Sw 84th Ave, Suite 105, Plantation, FL, 33324

Phone (954) 473-2011

Fax (954) 473-8611

Enumeration date Mar 31, 2006

Last updated in NPPES Sep 13, 2008

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License ME56893 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Mark Grenitz practice?

The practice location on file with NPPES is in Plantation, FL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mark Grenitz?

The National Provider Identifier (NPI) for Mark Grenitz is 1790746279, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-13.