Margot J. Aiken, MD
Endocrinology, Diabetes & Metabolism Physician · Oceanside, CA
Margot J. Aiken, MD is an endocrinology, diabetes & metabolism physician with a practice address in Oceanside, California, and NPI 1952476236, issued on Nov 21, 2006. Check the license (California A40833, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Margot J. Aiken
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A40833 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3927 Waring RD Ste C, Oceanside, CA 92056
- Phone
- (760) 941-9850
- Enumerated
- Nov 21, 2006
- Record last updated
- Mar 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (760) 941-9845
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 3927 Waring RD Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pargol SamaniCardiovascular Disease Physician1881982486
- Marilynn Shaw, MS, APRN, NP, CNSNurse Practitioner1114400967
Verify Margot J. Aiken in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A40833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
53 Medicare Part D claims for 30 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium20 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.
Margot J. Aiken among 1,131 endocrinology, diabetes & metabolism physician records in California
Margot J. Aiken, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2021 · 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 Oceanside → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Christopher Hupfeld, M.D.Oceanside, CA 920561568429165
- Sadaf Farasat, M.D., MPHPoway, CA 920641255696407
- Amy Chang, MDLa Jolla, CA 920371750568911
- Howard Foyt, M.D.La Jolla, CA 920371366625055
- Heather Hofflich, DOLa Jolla, CA 920371598962102
- Farahnaz Joarder, M.D.La Jolla, CA 920371205063815
- Matthew Levine, M.DLa Jolla, CA 920371801994231
- Ivan Lieberburg, PH.D., M.D.Solana Beach, CA 920751245345008
Common questions
What is Margot J. Aiken, MD's NPI number?
Margot J. Aiken, MD's National Provider Identifier (NPI) is 1952476236, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margot J. Aiken, MD located?
The NPPES record lists a practice address at 3927 Waring RD Ste C, Oceanside, CA, 92056. Phone: (760) 941-9850. Providers update this record themselves, so call before visiting.
How can I verify Margot J. Aiken, MD's license?
NPPES lists California license number A40833, 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 Margot J. Aiken, MD prescribe under Medicare Part D?
In 2024, Margot J. Aiken, MD had 53 Medicare Part D claims for 30 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.