Ian Jayson Welsh
Critical Care Medicine (Internal Medicine) Physician · Scottsdale, AZ
Ian Jayson Welsh is a critical care medicine (internal medicine) physician with a practice address in Scottsdale, Arizona, and NPI 1033607320, issued on Apr 23, 2018. Check the license (Arizona 74598, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ian Jayson Welsh
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 74598 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 9060 E Via Linda Ste 250, Scottsdale, AZ 85258
- Phone
- (480) 614-2000
- Enumerated
- Apr 23, 2018
- Record last updated
- Nov 26, 2024
- Fax
- (480) 614-1751
- Medicare enrollment
- Enrolled (PECOS I20241106000831); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 180 in Arizona → Look up another NPI →
Also registered at 9060 E Via Linda Ste 250
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Inna Ablyaeva, FNPFamily Nurse Practitioner1134600133
- Ahmad Aldeiri, MDInfectious Disease Physician1063725174
- Seth Assar, MDCritical Care Medicine (Internal Medicine) Physician1396096939
- Christopher Beaty, MDPulmonary Disease Physician1235135575
- Ruth Benzar, M.D.Critical Care Medicine (Internal Medicine) Physician1770933319
- Benjamin Cantrill, DOCritical Care Medicine (Internal Medicine) Physician1467807792
Verify Ian Jayson Welsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 74598Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
59 Medicare Part D claims for 13 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of 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.
Bills Medicare through one group practice
- Arizona Pulmonary Specialists LtdScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Jayson Welsh among 180 critical care medicine (internal medicine) physician records in Arizona
Ian Jayson Welsh is one of 180 critical care medicine (internal medicine) physician records with a practice address in Arizona. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 89% of them.
- NPI issued2018 · 89% of these records are older, 4% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2018 · median 2007 among the 155 with a school on file
- Record last updated2024 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Arizona
There are 180 critical care medicine (internal medicine) physician records in Arizona.
All 180 in Arizona → Every provider in Scottsdale → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Seth Assar, MDScottsdale, AZ 852581396096939
- Paul Conomos, M.D.Scottsdale, AZ 852581386659795
- Aditya Gupta, M.D.Scottsdale, AZ 852581497755615
- Rubina Khair, M.D., M.P.H.Scottsdale, AZ 852581316259542
- Ritu Khanna, MDScottsdale, AZ 852581255388393
- Sean Marco, M.D.Scottsdale, AZ 852581790123834
- Joshua Mason, M.D.Scottsdale, AZ 852581245557784
- Akshay Muralidhar, M.D.Scottsdale, AZ 852581073856423
Common questions
What is Ian Jayson Welsh's NPI number?
Ian Jayson Welsh's National Provider Identifier (NPI) is 1033607320, issued on Apr 23, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Ian Jayson Welsh located?
The NPPES record lists a practice address at 9060 E Via Linda Ste 250, Scottsdale, AZ, 85258. Phone: (480) 614-2000. Providers update this record themselves, so call before visiting.
How can I verify Ian Jayson Welsh's license?
NPPES lists Arizona license number 74598, 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 Ian Jayson Welsh prescribe under Medicare Part D?
In 2024, Ian Jayson Welsh had 59 Medicare Part D claims for 13 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.