Ryan Haag, DO
Anesthesiology Physician · Flagstaff, AZ
Ryan Haag, DO is an anesthesiology physician with a practice address in Flagstaff, Arizona, and NPI 1831775899, issued on Mar 21, 2021. Check the license (Arizona 63110, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Haag
- Credential
- DO
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 63110 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1200 N Beaver St, Flagstaff, AZ 86001
- Phone
- (928) 779-3366
- Enumerated
- Mar 21, 2021
- Record last updated
- Jun 12, 2025
- Medicare enrollment
- Enrolled (PECOS I20250715003188); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2021
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,473 in Arizona → Look up another NPI →
Also registered at 1200 N Beaver St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Acquaviva, CRNACertified Registered Nurse Anesthetist1639238348
- Michelle Aerni, D.O.Critical Care Medicine (Anesthesiology) Physician1225014822
- Amit Agrawal, M.D.Neonatal-Perinatal Medicine Physician1306032701
- Muhammad Ali, MDCritical Care Medicine (Internal Medicine) Physician1801264353
- Kim AllenSpeech-Language Pathologist1356580484
- Bianca Anderson, MS, RDRegistered Dietitian1548609431
Verify Ryan Haag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 63110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $20.55
1 payment: food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northern Arizona Healthcare CorporationFlagstaff, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Haag among 1,473 anesthesiology physician records in Arizona
Ryan Haag, DO is one of 1,473 anesthesiology physician records with a practice address in Arizona. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2021 · median 2003 among the 984 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
42 anesthesiology physician records list a practice address in Flagstaff
They are 42 of the 2,419 NPPES records with a practice address in Flagstaff, and 1,473 anesthesiology physician records in Arizona.
All 1,473 in Arizona → Every provider in Flagstaff → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Brian Bates, MDFlagstaff, AZ 860011568470276
- Samantha Buchika, MDFlagstaff, AZ 860011972511608
- Mark Chapman, MDFlagstaff, AZ 860011548279276
- Gary Christensen, MDFlagstaff, AZ 860011083623722
- Jenniene Foster, MDFlagstaff, AZ 860011508803602
- Nicholas Franceschini, MDFlagstaff, AZ 860011588601678
- James Fredenberg, MDFlagstaff, AZ 860011205888195
- James Gibson, MDFlagstaff, AZ 860011063421782
Common questions
What is Ryan Haag, DO's NPI number?
Ryan Haag, DO's National Provider Identifier (NPI) is 1831775899, issued on Mar 21, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Haag, DO located?
The NPPES record lists a practice address at 1200 N Beaver St, Flagstaff, AZ, 86001. Phone: (928) 779-3366. Providers update this record themselves, so call before visiting.
How can I verify Ryan Haag, DO's license?
NPPES lists Arizona license number 63110, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.