Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark S. Calkins, MD, PA.

Orthopaedic Surgery Physician in Niceville, FL · enumerated 2006 · authorized official Penny Maus, Office Manager.

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

National Provider Identifier

1922031509

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Registry record

Entity type Organization (Type 2)

Legal business name Mark S. Calkins, MD, PA.

Practice address 550 Twin Cities Blvd Ste A, Niceville, FL, 32578

Phone (850) 729-2727

Fax (850) 729-7066

Enumeration date Jul 8, 2006

Last updated in NPPES Apr 18, 2008

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License ME39537 (FL) Primary

Authorized official

Name Penny Maus

Title Office Manager

Phone (850) 729-2727

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-04-18. Verify at npiregistry.cms.hhs.gov.

Where is Mark S. Calkins, MD, PA. located?

The practice location on file with NPPES is in Niceville, FL.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-18.