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Mark Stephan, M.D.
NPI 1871553693 · Family Medicine Physician · Phoenix, AZ
Mark Stephan, M.D. is a Family Medicine Physician provider in Phoenix, AZ (NPI 1871553693).
Provider details
- NPI number
- 1871553693
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24031 (AZ)
Specialties & taxonomies
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.
Practice location
1300 N 12th St
Suite 605
Phoenix, AZ 85006-2848
Phone: (602) 239-4567
Street-level locationGet directions
Mailing address
1010 N Country Club Dr
Mesa, AZ 85201-3309
Registry dates
- Enumerated
- 2006-03-24
- Last updated
- 2008-03-17
Frequently asked questions
- What is Mark Stephan's NPI number?
- Mark Stephan's National Provider Identifier (NPI) is 1871553693, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stephan's specialty?
- Mark Stephan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Stephan located?
- Mark Stephan's practice location on file with NPPES is 1300 N 12th St, Phoenix, AZ 85006-2848.
- What is Mark Stephan's phone number?
- The practice phone number listed in the NPPES registry for Mark Stephan is (602) 239-4567.
- Is Mark Stephan's NPI active?
- Yes — Mark Stephan's NPI (1871553693) is active in the NPPES registry as of the last update on 2008-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.