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

Dr. Howard David Diener, MD

Specialist in Sarasota, FL · enumerated 2005.

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

National Provider Identifier

1326033895

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Howard David Diener

Credential MD

Sex Male

Practice address Sarasota, FL, 34233

Phone (941) 923-8353

Fax (941) 925-7064

Enumeration date Sep 12, 2005

Last updated in NPPES Aug 29, 2016

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License ME0049428 (FL) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 116169 (NC) 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
045805800	Medicaid	FL	-
5917580	Medicaid	NC	-

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 1326033895 active?

Yes, as of the latest NPPES snapshot, NPI 1326033895 is active (record last updated 2016-08-29).

How do I verify Howard Diener's NPI record?

Cross-check NPI 1326033895 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

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-29.