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Robert M Dryden MD Ltd

Specialist in Tucson, AZ · enumerated 2007 · authorized official Christine Diorio, Patient Account Administrator.

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

National Provider Identifier

1942499942

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Registry record

Entity type Organization (Type 2)
Legal business name Robert M Dryden MD Ltd
Practice address 1241 N Wilmot Rd, Tucson, AZ, 85712
Phone (520) 722-0909
Fax (520) 722-6937
Enumeration date Oct 16, 2007
Last updated in NPPES Oct 29, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers · License 6151 (AZ) Primary

Authorized official

Name Christine Diorio
Title Patient Account Administrator
Phone (520) 722-0909

Other identifiers

Identifier Type State Issuer
U0366 Medicaid NM —

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 is the NPI number for Robert M Dryden MD Ltd?
The NPI for Robert M Dryden MD Ltd is 1942499942, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Robert M Dryden MD Ltd?
NPPES lists Christine Diorio (Patient Account Administrator) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-29.