Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David Ross Allen, MD
Pediatrics Physician in Tucson, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255319174
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Registry record
Entity type Individual (Type 1)
Name David Ross Allen
Credential MD
Sex Male
Practice address 2001 W Orange Grove Rd, # 312, Tucson, AZ, 85704
Phone (520) 544-2449
Fax (520) 544-2934
Enumeration date Jan 3, 2006
Last updated in NPPES Feb 25, 2009
Taxonomy & licenses
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 |
|---|---|---|---|
| 002000393 | Other | AZ | CIGNA |
| 013152002 | Medicaid | AZ | - |
| AZ0340020 | Other | AZ | BLUE CROSS |
| 013152 | Other | AZ | CMDP |
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.
Frequently asked questions
What is the NPI number for David Allen?
The National Provider Identifier (NPI) for David Allen is 1255319174, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Allen practice?
The practice location on file with NPPES is in Tucson, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Xray Physicians, Ltd. Radiologic Technologist · Tucson, AZ NPI 1215931092 Janin Struminger Infectious Disease Physician · Tucson, AZ NPI 1104814466 Elizabeth Wack Infectious Disease Physician · Tucson, AZ NPI 1598753865 Michael Boren Internal Medicine Physician · Tucson, AZ NPI 1962473041 Homeira Baghdadi Internal Medicine Physician · Tucson, AZ NPI 1215908397 Arete Sleep LLC Sleep Disorder Diagnostic Clinic/Center · Tucson, AZ NPI 1265485395 Health Care Professional Corporation Internal Medicine Physician · Tucson, AZ NPI 1922052547 Manoj Mittal Geriatric Medicine (Internal Medicine) Physician · Tucson, AZ NPI 1972520708
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-25.