Justin Stiller, D.O.
NPI 1639559925 · Psychiatry Physician · Tucson, AZ
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Stiller, D.O. is a Psychiatry Physician provider in Tucson, AZ (NPI 1639559925).
Provider details
- NPI number
- 1639559925
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 007777 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1501 N Campbell AveTucson, AZ 85724-0001Phone: (520) 626-6795
Registry dates
- Enumerated
- 2015-06-02
- Last updated
- 2019-10-28
Frequently asked questions
- What is Justin Stiller's NPI number?
- Justin Stiller's National Provider Identifier (NPI) is 1639559925, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Stiller's specialty?
- Justin Stiller is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Stiller located?
- Justin Stiller's practice location on file with NPPES is 3601 S 6th Ave, Tucson, AZ 85723-6204.
- What is Justin Stiller's phone number?
- The practice phone number listed in the NPPES registry for Justin Stiller is (520) 792-1450.
- Does Justin Stiller accept Medicare?
- Justin Stiller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Stiller's NPI active?
- Yes — Justin Stiller's NPI (1639559925) is active in the NPPES registry as of the last update on 2019-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.