Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ari Zaiman, M.D.

Pulmonary Disease Physician in Towson, MD · enumerated 2006 · practices at Greater Baltimore Medical Center, Inc..

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

National Provider Identifier

1104862572

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Registry record

Entity type Individual (Type 1)

Name Ari Zaiman

Credential M.D.

Sex Male

Practice address 6565 N Charles St Ste 411, Towson, MD, 21204

Phone (443) 849-3901

Fax (443) 849-3902

Enumeration date Jun 22, 2006

Last updated in NPPES Nov 20, 2025

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License D56324 (MD) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License D56324 (MD) 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
V814-0017	Other	MD	CAREFIRST
122003	Other	MD	JHHC
8089466	Other	MD	CIGNA
7118615	Other	MD	AETNA HMO
405531400	Medicaid	MD	-
7118615	Other	MD	AETNA PPO

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

What specialty is Ari Zaiman?

Ari Zaiman is registered in NPPES with the primary taxonomy of Pulmonary Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

William Hand Family Medicine Physician · Baltimore, MD NPI 1295773141 Kathleen Mathey Family Medicine Physician · Baltimore, MD NPI 1366547309 Joanne Wills Family Medicine Physician · Baltimore, MD NPI 1942395447 Christa Fistler Critical Care Medicine (Internal Medicine) Physician · Baltimore, MD NPI 1770608887 Stephanie Wappel Sleep Medicine (Internal Medicine) Physician · Towson, MD NPI 1942599568 Bobby Mathew Critical Care Medicine (Internal Medicine) Physician · Towson, MD NPI 1962745331 Chelsi Green Pulmonary Disease Physician · Baltimore, MD NPI 1871082099 Greater Baltimore Medical Center, Inc. Pulmonary Disease Physician · Baltimore, MD NPI 1437034667

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-20.