Bridget Bonsall Stiegler, D.O.
Internal Medicine Physician · Flagstaff, AZ
Bridget Bonsall Stiegler, D.O. is an internal medicine physician with a practice address in Flagstaff, Arizona, and NPI 1740494665, issued on May 9, 2007. Check the license (Arizona 005188, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Bridget Bonsall Stiegler
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 005188 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 914 N San Francisco St Ste M, Flagstaff, AZ 86001
- Phone
- (928) 266-0036
- Enumerated
- May 9, 2007
- Record last updated
- Apr 22, 2026
- Fax
- (928) 266-0094
- Medicaid ID
- 447818 AZ
- Medicare enrollment
- Enrolled (PECOS I20090827000861); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 914 N San Francisco St Ste M
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David GreenwaltMassage Therapist1205792389
Verify Bridget Bonsall Stiegler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 005188Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average internal medicine physician in 2024
747 Medicare Part D claims for 101 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 239 claims were for opioids.
Most prescribed
- Oxycodone Hcl48 claims
- Lorazepam44 claims
- Morphine Sulfate Er38 claims
- Morphine Sulfate33 claims
- Fentanyl31 claims
- Levothyroxine Sodium27 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 77 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $19.19
1 payment: food and beverage; the largest payer was Genentech USA, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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).
Bridget Bonsall Stiegler among 2,853 internal medicine physician records in Arizona
Bridget Bonsall Stiegler, D.O. is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 47% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2006 · median 2003 among the 1,643 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Arizona
There are 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Flagstaff → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jane Bigler, MDFlagstaff, AZ 860011285607952
- Heather Crittenden, MDFlagstaff, AZ 860011467448142
- Bradley Dixon, MDFlagstaff, AZ 860011053393363
- Margaret Donnelly, MDFlagstaff, AZ 860011316924905
- Sharon Drake, D.O.Flagstaff, AZ 860011801996632
- Mark Foster, M.D.Flagstaff, AZ 860011710950480
- James Galloway, MDFlagstaff, AZ 860011053427229
- Thomas Ho, M.D.Flagstaff, AZ 860011538154505
Common questions
What is Bridget Bonsall Stiegler, D.O.'s NPI number?
Bridget Bonsall Stiegler, D.O.'s National Provider Identifier (NPI) is 1740494665, issued on May 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bridget Bonsall Stiegler, D.O. located?
The NPPES record lists a practice address at 914 N San Francisco St Ste M, Flagstaff, AZ, 86001. Phone: (928) 266-0036. Providers update this record themselves, so call before visiting.
How can I verify Bridget Bonsall Stiegler, D.O.'s license?
NPPES lists Arizona license number 005188, 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.
How much does Bridget Bonsall Stiegler, D.O. prescribe under Medicare Part D?
In 2024, Bridget Bonsall Stiegler, D.O. had 747 Medicare Part D claims for 101 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Bridget Bonsall Stiegler, D.O.'s MIPS final score?
The 2023 MIPS final score is 77 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.