Steven C. Kaiser, MD
Gastroenterology Physician · Mesa, AZ
Steven C. Kaiser, MD is a gastroenterology physician with a practice address in Mesa, Arizona, and NPI 1346219433, issued on Mar 14, 2006. Check the license (Arizona 36236, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Steven C. Kaiser
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 36236 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4540 E Baseline RD, Mesa, AZ 85206
- Phone
- (480) 306-6405
- Enumerated
- Mar 14, 2006
- Record last updated
- Oct 31, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (480) 306-6409
- Medicaid ID
- 100106890A IN
- Medicare enrollment
- Enrolled (PECOS I20070907000665); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 403 in Arizona → Look up another NPI →
Also registered at 4540 E Baseline RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lynn Bevans, DNP, CPNP-PCPediatric Nurse Practitioner1386785095
- Brian Cahill, D.D.S.Dentist1558365809
- Lafe Carroll, D.O.Pediatrics Physician1932178290
- Blaine Couser, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1417077918
- Craig Defries, D.C.Chiropractor1912202904
Verify Steven C. Kaiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 36236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,847 Medicare Part D claims for 532 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Pantoprazole Sodium413 claims
- Famotidine174 claims
- Omeprazole119 claims
- Sod Sulf-Potass Sulf-Mag Sulf94 claims
- Clenpiq80 claims
- Dicyclomine Hcl63 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.
Industry payments in 2024: $372.23
21 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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
- Arizona Gastrointestinal Associates PLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven C. Kaiser among 403 gastroenterology physician records in Arizona
Steven C. Kaiser, MD is one of 403 gastroenterology physician records with a practice address in Arizona. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 41% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1984 · median 2001 among the 295 with a school on file
- Record last updated2011 · 47% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Arizona
There are 403 gastroenterology physician records in Arizona.
All 403 in Arizona → Every provider in Mesa → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Doo-Sang Cho, M.D.Mesa, AZ 852061750376778
- Andrew Collins, M.D.Mesa, AZ 852061740275338
- Prem Kumar, MDMesa, AZ 852061700841350
- David Leff, DOMesa, AZ 852061619956505
- Shahbaz Qureshi, MDMesa, AZ 852061548370109
- Sudhakar Reddy, MDMesa, AZ 852061063458735
- Michael Seip, DOMesa, AZ 852061205815925
- Craig Stein, M.D.Mesa, AZ 852061861487456
Common questions
What is Steven C. Kaiser, MD's NPI number?
Steven C. Kaiser, MD's National Provider Identifier (NPI) is 1346219433, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven C. Kaiser, MD located?
The NPPES record lists a practice address at 4540 E Baseline RD, Mesa, AZ, 85206. Phone: (480) 306-6405. Providers update this record themselves, so call before visiting.
How can I verify Steven C. Kaiser, MD's license?
NPPES lists Arizona license number 36236, 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 Steven C. Kaiser, MD prescribe under Medicare Part D?
In 2024, Steven C. Kaiser, MD had 1,847 Medicare Part D claims for 532 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.