Ryan Haag, DO
NPI 1831775899 · Anesthesiology Physician · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Haag, DO is a Anesthesiology Physician provider in Flagstaff, AZ (NPI 1831775899).
Provider details
- NPI number
- 1831775899
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1402 S Grand Blvd Rm M260Saint Louis, MO 63104-1004Phone: (989) 450-9569
Registry dates
- Enumerated
- 2021-03-21
- Last updated
- 2025-06-12
- Certified
- 2025-06-12
Frequently asked questions
- What is Ryan Haag's NPI number?
- Ryan Haag's National Provider Identifier (NPI) is 1831775899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Haag's specialty?
- Ryan Haag is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Haag located?
- Ryan Haag's practice location on file with NPPES is 1200 N Beaver St, Flagstaff, AZ 86001-3118.
- What is Ryan Haag's phone number?
- The practice phone number listed in the NPPES registry for Ryan Haag is (928) 779-3366.
- Does Ryan Haag accept Medicare?
- Ryan Haag is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Haag's NPI active?
- Yes — Ryan Haag's NPI (1831775899) is active in the NPPES registry as of the last update on 2025-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.