Janet R. Reiser, MD
Gastroenterology Physician · Scottsdale, AZ
Janet R. Reiser, MD is a gastroenterology physician with a practice address in Scottsdale, Arizona, and NPI 1942270947, issued on Jan 24, 2006. Check the license (Arizona 29358, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Janet R. Reiser
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 29358 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 7331 E Osborn Dr, Scottsdale, AZ 85251
- Phone
- (480) 646-8444
- Enumerated
- Jan 24, 2006
- Record last updated
- Dec 11, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (480) 646-8445
- Medicaid ID
- 588535 AZ
- Medicare enrollment
- Enrolled (PECOS I20050513000458); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 403 in Arizona → Look up another NPI →
Also registered at 7331 E Osborn Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lucio Arteaga, M.D.Family Medicine Physician1437245602
- Daniela Caltaru, M.D.Neuromusculoskeletal Medicine & OMM Physician1346234762
- Dennis Cooper, M.D.Ophthalmology Physician1306981998
- Marvin Goldstein, M.D.Cardiovascular Disease Physician1881650299
- Kimber Hattendorf, PTAPhysical Therapy Assistant1245422070
- William Heob, M.S.CCC-AAudiologist1255397683
Verify Janet R. Reiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 29358Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average gastroenterology physician in 2024
751 Medicare Part D claims for 291 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Famotidine119 claims
- Pantoprazole Sodium88 claims
- Peg 3350-Electrolyte88 claims
- Omeprazole35 claims
- Mesalamine32 claims
- Linzess27 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: $307.94
3 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. 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
- Honorhealth AmbulatoryScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janet R. Reiser among 403 gastroenterology physician records in Arizona
Janet R. Reiser, 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
- Graduated1985 · median 2001 among the 295 with a school on file
- Record last updated2012 · 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 Scottsdale → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Denis Frank, M.D.Scottsdale, AZ 852511871575530
- Jose Machain, M.D.Scottsdale, AZ 852511023373172
- Jay Mellen, M.D.Scottsdale, AZ 852511609871979
- Leon Rigberg, M.D.Scottsdale, AZ 852511336144633
- Amar Thosani, M.D.Scottsdale, AZ 852511063695591
- Sirish RaoScottsdale, AZ 852501427464130
- Prabhakar Swaroop, MDScottsdale, AZ 852501295743177
- Joel Brill, MDParadise Valley, AZ 852531417952789
Common questions
What is Janet R. Reiser, MD's NPI number?
Janet R. Reiser, MD's National Provider Identifier (NPI) is 1942270947, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Janet R. Reiser, MD located?
The NPPES record lists a practice address at 7331 E Osborn Dr, Scottsdale, AZ, 85251. Phone: (480) 646-8444. Providers update this record themselves, so call before visiting.
How can I verify Janet R. Reiser, MD's license?
NPPES lists Arizona license number 29358, 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 Janet R. Reiser, MD prescribe under Medicare Part D?
In 2024, Janet R. Reiser, MD had 751 Medicare Part D claims for 291 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.