Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mary M Karst, MD

Vascular & Interventional Radiology Physician in Montgomery, AL · enumerated 2005.

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

National Provider Identifier

1730173121

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary M Karst

Credential MD

Sex Female

Practice address Montgomery, AL, 36111

Phone (334) 288-4624

Fax (334) 280-3628

Enumeration date Aug 31, 2005

Last updated in NPPES Oct 19, 2016

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

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 00020068 (AL) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License ME90123 (FL) Secondary

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License MD20068 (AL) 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
000058707	Medicaid	AL	-
009952755	Medicaid	AL	-
009973265	Medicaid	AL	-
107069	Medicaid	AL	-
000055025	Medicaid	AL	-
009927920	Medicaid	AL	-
009973245	Medicaid	AL	-
009973255	Medicaid	AL	-
107042	Medicaid	AL	-
009973235	Medicaid	AL	-
051523069	Other	AL	BC/BS PIN
000045114	Medicaid	AL	-
000045115	Medicaid	AL	-
108565	Medicaid	AL	-
270020400	Medicaid	FL	-
000045162	Medicaid	AL	-
051045114	Other	AL	BC/BS PIN

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

Is NPI 1730173121 active?

Yes, as of the latest NPPES snapshot, NPI 1730173121 is active (record last updated 2016-10-19).

How do I verify Mary Karst's NPI record?

Cross-check NPI 1730173121 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-19.