NPPES file of Aug 9, 2026

Ruth Eileen Nelson, M.D

Family Medicine Physician · San Diego, CA

Ruth Eileen Nelson, M.D is a family medicine physician with a practice address in San Diego, California, and NPI 1710040472, issued on Dec 17, 2006. Check the license (California A40904, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710040472
Name
Ruth Eileen Nelson
Credential
M.D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A40904 CA
Self-reported in NPPES; status is on the state search
Practice location
10297 Scripps Trl, San Diego, CA 92131
Phone
(858) 586-0443
Enumerated
Dec 17, 2006
Record last updated
Feb 21, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(858) 586-0563
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Ruth Eileen Nelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A40904
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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64% fewer Medicare Part D claims than the average family medicine physician in 2024

1,262 Medicare Part D claims for 118 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 41 claims were for opioids.

  1. Ruth Nelson1,262
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium152 claims
  2. Levothyroxine Sodium85 claims
  3. Rosuvastatin Calcium57 claims
  4. Amlodipine Besylate39 claims
  5. Escitalopram Oxalate39 claims
  6. Olmesartan-Hydrochlorothiazide36 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.

Ruth Eileen Nelson among 17,133 family medicine physician records in California

Ruth Eileen Nelson, M.D is one of 17,133 family medicine physician records with a practice address in California. 81% 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, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2014 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

780 family medicine physician records list a practice address in San Diego

They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Timothy Barounis, M.D.San Diego, CA 921311790966877
  2. Angelica Bayardo, MDSan Diego, CA 921311023157724
  3. Neil Berkowitz, MDSan Diego, CA 921311750451035
  4. Nicole Chauche, M.D.San Diego, CA 921311053452300
  5. Keegan Duchicela, M.D.San Diego, CA 921311053552075
  6. Adrienne Ertl, M.D.San Diego, CA 921311427126895
  7. Allison Flaim, DOSan Diego, CA 921311114149853
  8. Geneen Gin, DOSan Diego, CA 921311144255217

Common questions

What is Ruth Eileen Nelson, M.D's NPI number?

Ruth Eileen Nelson, M.D's National Provider Identifier (NPI) is 1710040472, issued on Dec 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ruth Eileen Nelson, M.D located?

The NPPES record lists a practice address at 10297 Scripps Trl, San Diego, CA, 92131. Phone: (858) 586-0443. Providers update this record themselves, so call before visiting.

How can I verify Ruth Eileen Nelson, M.D's license?

NPPES lists California license number A40904, 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 Ruth Eileen Nelson, M.D prescribe under Medicare Part D?

In 2024, Ruth Eileen Nelson, M.D had 1,262 Medicare Part D claims for 118 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.