Arnon David Desai, M.D.
Internal Medicine Physician · Redlands, CA
Arnon David Desai, M.D. is an internal medicine physician with a practice address in Redlands, California, and NPI 1619339991, issued on Mar 24, 2016. Check the license (California A158648, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arnon David Desai
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A158648 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1030 Nevada St Ste 101, Redlands, CA 92374
- Phone
- (909) 966-5500
- Enumerated
- Mar 24, 2016
- Record last updated
- Oct 3, 2022
- Fax
- (909) 966-5222
- Medicare enrollment
- Enrolled (PECOS I20190918000644); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1030 Nevada St Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Bravo-Ramirez, NPPsychiatric/Mental Health Nurse Practitioner1801754890
- Jay Chae, NPFamily Nurse Practitioner1275237422
- Archis Desai, M.D.Internal Medicine Physician1396141230
- David Desai, M.D.Psychiatry Physician1740451566
- Roshana NazariPsychiatric/Mental Health Nurse Practitioner1104647205
Verify Arnon David Desai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158648Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average internal medicine physician in 2024
686 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium42 claims
- Rosuvastatin Calcium28 claims
- Losartan-Hydrochlorothiazide26 claims
- Lisinopril-Hydrochlorothiazide25 claims
- Ozempic23 claims
- Amlodipine Besylate22 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: $528.79
23 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Archis Desai MD IncRedlands, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Arnon David Desai among 17,696 internal medicine physician records in California
Arnon David Desai, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 internal medicine physician records list a practice address in Redlands
They are 56 of the 2,498 NPPES records with a practice address in Redlands, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Redlands → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Victor Bassuk, MDRedlands, CA 923741518231356
- Ravi Bhatia, M.D.Redlands, CA 923741942510540
- Amy Blackmon, MDRedlands, CA 923741134549884
- Archis Desai, M.D.Redlands, CA 923741396141230
- Mouna Haddad-Wilson, M.D.Redlands, CA 923741114946340
- Shazia Hyder, MDRedlands, CA 923741225206253
- Hashem Lababidi, DORedlands, CA 923741770164485
- Nancy Lin, M.D.Redlands, CA 923741528293826
Common questions
What is Arnon David Desai, M.D.'s NPI number?
Arnon David Desai, M.D.'s National Provider Identifier (NPI) is 1619339991, issued on Mar 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Arnon David Desai, M.D. located?
The NPPES record lists a practice address at 1030 Nevada St Ste 101, Redlands, CA, 92374. Phone: (909) 966-5500. Providers update this record themselves, so call before visiting.
How can I verify Arnon David Desai, M.D.'s license?
NPPES lists California license number A158648, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Arnon David Desai, M.D. prescribe under Medicare Part D?
In 2024, Arnon David Desai, M.D. had 686 Medicare Part D claims for 54 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.