NPPES file of Aug 9, 2026

John G. Elder, M.D.

Nephrology Physician · Santa Barbara, CA

John G. Elder, M.D. is a nephrology physician with a practice address in Santa Barbara, California, and NPI 1366454225, issued on Aug 12, 2006. Check the license (California G42663, 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
1366454225
Name
John G. Elder
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
G42663 CA
Self-reported in NPPES; status is on the state search
Practice location
215 Pesetas LN, Santa Barbara, CA 93110
Phone
(805) 681-1761
Enumerated
Aug 12, 2006
Record last updated
Nov 8, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(805) 681-1768
Medicaid ID
00G426630 CA
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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Also registered at 215 Pesetas LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jim Aldecoa, RPHPharmacist1366451940
  2. Nicole Almanza, RD, CDCES, CHESRegistered Dietitian1316594781
  3. Thomas Anderson, M.D.Emergency Medicine Physician1770697872
  4. Edward Andrews, P.T.Physical Therapist1235243239
  5. Gabriella Apollonio, PA-CPhysician Assistant1497237598
  6. Ryan Arnold, M.D.Emergency Medicine Physician1033314075

Verify John G. Elder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G42663
    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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96% fewer Medicare Part D claims than the average nephrology physician in 2024

60 Medicare Part D claims for 28 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.

  1. John Elder60
  2. Specialty average1,465

Most prescribed

  1. Prosol14 claims
  2. Clinolipid12 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.

John G. Elder among 1,468 nephrology physician records in California

John G. Elder, M.D. is one of 1,468 nephrology physician records with a practice address in California. 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileNo · 77% of these records are
  • Record last updated2010 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. William Golgert, M.D.Santa Barbara, CA 931101366530412
  2. Margaret BischelSanta Barbara, CA 931081538162888
  3. Darol Joseff, M.D.Santa Barbara, CA 931051669554739
  4. Michael Fisher, MDSanta Barbara, CA 931011063422178
  5. Bindu Kamal, MDSanta Barbara, CA 931011184718215
  6. Ushakant Thakkar, M.D.Simi Valley, CA 930651780683193
  7. Jie Shi Yan, M.D.Simi Valley, CA 930651396744546
  8. Saumil Gandhi, M.D.Santa Paula, CA 930601427057843

Common questions

What is John G. Elder, M.D.'s NPI number?

John G. Elder, M.D.'s National Provider Identifier (NPI) is 1366454225, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John G. Elder, M.D. located?

The NPPES record lists a practice address at 215 Pesetas LN, Santa Barbara, CA, 93110. Phone: (805) 681-1761. Providers update this record themselves, so call before visiting.

How can I verify John G. Elder, M.D.'s license?

NPPES lists California license number G42663, 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 John G. Elder, M.D. prescribe under Medicare Part D?

In 2024, John G. Elder, M.D. had 60 Medicare Part D claims for 28 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.