Ian Andrew Downs, MD
Endocrinology, Diabetes & Metabolism Physician · Santa Monica, CA
Ian Andrew Downs, MD is an endocrinology, diabetes & metabolism physician with a practice address in Santa Monica, California, and NPI 1790216406, issued on Mar 23, 2017. Check the license (California A171659, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ian Andrew Downs
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- A171659 CA
282217 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2020 Santa Monica Blvd Ste 550, Santa Monica, CA 90404
- Phone
- (310) 828-1050
- Enumerated
- Mar 23, 2017
- Record last updated
- Aug 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20230627001812); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 2020 Santa Monica Blvd Ste 550
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shira Grock, MDEndocrinology, Diabetes & Metabolism Physician1871868968
- Katayoun Khoshbin, MDEndocrinology, Diabetes & Metabolism Physician1861019879
- Sarah Kim, M.D.Endocrinology, Diabetes & Metabolism Physician1790075331
- Melissa Lechner, MD, PHDEndocrinology, Diabetes & Metabolism Physician1447677521
- Rachael Oxman, MD, MPHEndocrinology, Diabetes & Metabolism Physician1407113616
- Hugo Torres, M.D.Endocrinology, Diabetes & Metabolism Physician1477990307
Verify Ian Andrew Downs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A171659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,425 Medicare Part D claims for 276 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Levothyroxine Sodium134 claims
- Ozempic132 claims
- Metformin Hcl Er111 claims
- Mounjaro104 claims
- Metformin Hcl77 claims
- Jardiance62 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 practice group's MIPS final score for 2023 (Medicare payment program): 86.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $42.50
1 payment: gift; the largest payer was Mannkind Corporation. The 5,661 providers of this specialty with any payment received $5,742.15 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
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Andrew Downs among 1,131 endocrinology, diabetes & metabolism physician records in California
Ian Andrew Downs, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 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 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2017 · median 2003 among the 779 with a school on file
- Record last updated2023 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Santa Monica → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Evan Abel, MDSanta Monica, CA 904041619067238
- Katherine Araque Triana, M.D.Santa Monica, CA 904041144656430
- Philip Barnett, M.D.Santa Monica, CA 904041154309045
- Julie Bernthal, MDSanta Monica, CA 904041619310604
- Linda Glaser, M.D., PH.D.Santa Monica, CA 904041518900976
- Shira Grock, MDSanta Monica, CA 904041871868968
- Richard Guttler, MD FACESanta Monica, CA 904041275653024
- Sarah Kim, M.D.Santa Monica, CA 904041790075331
Common questions
What is Ian Andrew Downs, MD's NPI number?
Ian Andrew Downs, MD's National Provider Identifier (NPI) is 1790216406, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ian Andrew Downs, MD located?
The NPPES record lists a practice address at 2020 Santa Monica Blvd Ste 550, Santa Monica, CA, 90404. Phone: (310) 828-1050. Providers update this record themselves, so call before visiting.
How can I verify Ian Andrew Downs, MD's license?
NPPES lists California license number A171659, 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 Ian Andrew Downs, MD prescribe under Medicare Part D?
In 2024, Ian Andrew Downs, MD had 1,425 Medicare Part D claims for 276 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Ian Andrew Downs, MD's MIPS final score?
The 2023 MIPS final score is 86.1 of 100, reported for the practice group. 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.