What is Stephen Hartz's NPI number?

Stephen Hartz's National Provider Identifier (NPI) is 1669492757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stephen Hartz's specialty?

Stephen Hartz is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).

Where is Stephen Hartz located?

Stephen Hartz's practice location on file with NPPES is 1200 N Beaver St, Flagstaff, AZ 86001-3118.

What is Stephen Hartz's phone number?

The practice phone number listed in the NPPES registry for Stephen Hartz is (928) 779-3366.

Is Stephen Hartz's NPI active?

Yes — Stephen Hartz's NPI (1669492757) is active in the NPPES registry as of the last update on 2024-07-16.

IndividualActive

Stephen Hartz, M.D.

NPI 1669492757 · General Practice Physician · Flagstaff, AZ

Stephen Hartz, M.D. is a General Practice Physician provider in Flagstaff, AZ (NPI 1669492757).

Provider details

NPI number: 1669492757
Entity type: Individual
Primary specialty: General Practice PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 12105 (AZ)

Practice location

1200 N Beaver St

Flagstaff, AZ 86001-3118

Phone: (928) 779-3366

Street-level locationGet directions

More AZ providers

Mailing address

1601 N Fox Hill Rd

Flagstaff, AZ 86004-7252

Specialties & taxonomies

General Practice PhysicianPrimary208D00000XLicense 12105 (AZ)
Allopathic & Osteopathic Physicians
Personal Emergency Response Attendant146D00000XLicense 12105 (AZ)
Emergency Medical Service Providers
Emergency Medicine Physician207P00000XLicense 12105 (AZ)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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.

Enumerated: 2006-07-20
Last updated: 2024-07-16
Certified: 2024-07-16

Frequently asked questions

What is Stephen Hartz's NPI number?: Stephen Hartz's National Provider Identifier (NPI) is 1669492757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Stephen Hartz's specialty?: Stephen Hartz is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
Where is Stephen Hartz located?: Stephen Hartz's practice location on file with NPPES is 1200 N Beaver St, Flagstaff, AZ 86001-3118.
What is Stephen Hartz's phone number?: The practice phone number listed in the NPPES registry for Stephen Hartz is (928) 779-3366.
Is Stephen Hartz's NPI active?: Yes — Stephen Hartz's NPI (1669492757) is active in the NPPES registry as of the last update on 2024-07-16.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions