Ajaysingh Nirwan, MD
Hospitalist Physician · Mesa, AZ
Ajaysingh Nirwan, MD is a hospitalist physician with a practice address in Mesa, Arizona, and NPI 1750357190, issued on Feb 26, 2006. Check the license (Arizona 31994, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ajaysingh Nirwan
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 31994 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1400 S. Dobson RD, Mesa, AZ 85202
- Phone
- (480) 626-4882
- Enumerated
- Feb 26, 2006
- Record last updated
- Apr 15, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 812934 AZ
- Medicare enrollment
- Enrolled (PECOS I20031216000225); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 775 in Arizona → Look up another NPI →
Also registered at 1400 S. Dobson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kamini Patel, DOInternal Medicine Physician1295701639
- Amelia Young, PA-CPhysician Assistant1548236862
Verify Ajaysingh Nirwan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 31994Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average hospitalist physician in 2024
313 Medicare Part D claims for 235 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 78 claims were for opioids.
Most prescribed
- Clopidogrel46 claims
- Oxycodone-Acetaminophen28 claims
- Hydrocodone-Acetaminophen27 claims
- Metoprolol Succinate21 claims
- Cephalexin17 claims
- Cefdinir15 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 MIPS final score for 2023 (Medicare payment program): 28 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Apollo Hospitalists PLLCMesa, AZ
- Banner Hospital Based Physicians Arizona LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ajaysingh Nirwan among 775 hospitalist physician records in Arizona
Ajaysingh Nirwan, MD is one of 775 hospitalist physician records with a practice address in Arizona. 88% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 79% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1991 · median 2011 among the 618 with a school on file
- Record last updated2017 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Arizona
There are 775 hospitalist physician records in Arizona.
All 775 in Arizona → Every provider in Mesa → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Bassil Bayazed, MDMesa, AZ 852021700987773
- Barjinder Bhullar, MDMesa, AZ 852021871560334
- Kern Chaudhry, MDMesa, AZ 852021740460005
- Jacqueline Corcoran, DOMesa, AZ 852021659401834
- Pawan Dhawan, MBBSMesa, AZ 852021073560702
- Subha Gopinath, MDMesa, AZ 852021356356059
- Chad Hammad, MDMesa, AZ 852021225097611
- David Hernandez, DOMesa, AZ 852021184879900
Common questions
What is Ajaysingh Nirwan, MD's NPI number?
Ajaysingh Nirwan, MD's National Provider Identifier (NPI) is 1750357190, issued on Feb 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ajaysingh Nirwan, MD located?
The NPPES record lists a practice address at 1400 S. Dobson RD, Mesa, AZ, 85202. Phone: (480) 626-4882. Providers update this record themselves, so call before visiting.
How can I verify Ajaysingh Nirwan, MD's license?
NPPES lists Arizona license number 31994, 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 Ajaysingh Nirwan, MD prescribe under Medicare Part D?
In 2024, Ajaysingh Nirwan, MD had 313 Medicare Part D claims for 235 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Ajaysingh Nirwan, MD's MIPS final score?
The 2023 MIPS final score is 28 of 100. 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.