Christopher W. Hammerle, MD
Gastroenterology Physician · Boise, ID
Christopher W. Hammerle, MD is a gastroenterology physician with a practice address in Boise, Idaho, and NPI 1740336361, issued on Jan 26, 2007. Check the license (Idaho M11652, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Christopher W. Hammerle
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- M11652 ID
Self-reported in NPPES; status is on the state search - Practice location
- 425 W Bannock St, Boise, ID 83702
- Phone
- (208) 343-6458
- Enumerated
- Jan 26, 2007
- Record last updated
- Sep 21, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (208) 343-5031
- Medicaid ID
- 1740336361 ID
- Medicare enrollment
- Enrolled (PECOS I20120803000695); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 82 in Idaho → Look up another NPI →
Also registered at 425 W Bannock St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noel Anderson, PA-CPhysician Assistant1881050540
- Paul Baehr, M.D.Gastroenterology Physician1184619165
- Kirk Bigley, PAPhysician Assistant1265887772
- Jeremy Gardner, APRN-CNPNurse Practitioner1902539976
- Regina Hanson, NPFamily Nurse Practitioner1447582580
- Laura Hartwig, FNP-CFamily Nurse Practitioner1023322856
Verify Christopher W. Hammerle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M11652Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average gastroenterology physician in 2024
1,239 Medicare Part D claims for 521 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Odt309 claims
- Sod Sulf-Potass Sulf-Mag Sulf281 claims
- Omeprazole111 claims
- Pantoprazole Sodium49 claims
- Diphenoxylate-Atropine39 claims
- Ondansetron Hcl33 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): 92.9 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: $36.07
2 payments; by number, the most common kind was food and beverage; the largest payer was Aimmune Therapeutics, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Idaho Gastroenterology Associates LLPBoise, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher W. Hammerle among 82 gastroenterology physician records in Idaho
Christopher W. Hammerle, MD is one of 82 gastroenterology physician records with a practice address in Idaho. 78% 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 56% of them.
- NPI issued2007 · 56% of these records are older, 37% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2004 · median 2004 among the 57 with a school on file
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Idaho
There are 82 gastroenterology physician records in Idaho.
All 82 in Idaho → Every provider in Boise → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Paul Baehr, M.D.Boise, ID 837021184619165
- Walter Hair, M.D.Boise, ID 837021679890057
- Ellen Hunter, M.D.Boise, ID 837021174518740
- Philip Jensen, M.D.Boise, ID 837021134114713
- Elsbeth Jensen-Otsu, MDBoise, ID 837021366731259
- Rahul Kuver, M.D.Boise, ID 837021235214040
- Robert Lockwood, M.D.Boise, ID 837021588954101
- W McDonnell, MDBoise, ID 837021942241104
Common questions
What is Christopher W. Hammerle, MD's NPI number?
Christopher W. Hammerle, MD's National Provider Identifier (NPI) is 1740336361, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Christopher W. Hammerle, MD located?
The NPPES record lists a practice address at 425 W Bannock St, Boise, ID, 83702. Phone: (208) 343-6458. Providers update this record themselves, so call before visiting.
How can I verify Christopher W. Hammerle, MD's license?
NPPES lists Idaho license number M11652, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher W. Hammerle, MD prescribe under Medicare Part D?
In 2024, Christopher W. Hammerle, MD had 1,239 Medicare Part D claims for 521 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Christopher W. Hammerle, MD's MIPS final score?
The 2023 MIPS final score is 92.9 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.