NPI Portal NPI Lookup & Verification

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

Dr. David Jonathan Greengart, M.D.

Emergency Medicine Physician in Little Rock, AR · enumerated 2006.

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

National Provider Identifier

1134172901

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Registry record

Entity type Individual (Type 1)
Name Dr. David Jonathan Greengart
Credential M.D.
Sex Male
Practice address Little Rock, AR, 72212
Enumeration date May 19, 2006
Last updated in NPPES Nov 20, 2009

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

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License E-4595 (AR) Primary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 2008003303 (MO) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036.117655 (IL) Secondary
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
1134172901 Medicaid MO -
159424001 Medicaid AR -
036117655 Medicaid IL -
1134172901 Other MO BLUE CROSS BLUE SHIELD
036117655-6 Medicaid IL -

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 1134172901 active?
Yes, as of the latest NPPES snapshot, NPI 1134172901 is active (record last updated 2009-11-20).
How do I verify David Greengart's NPI record?
Cross-check NPI 1134172901 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-20.