NPPES file of Aug 9, 2026

James W. Jones, M.D.

Nephrology Physician · Santa Maria, CA

James W. Jones, M.D. is a nephrology physician with a practice address in Santa Maria, California, and NPI 1053486399, issued on Nov 21, 2006. Check the license (California 37317, 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
1053486399
Name
James W. Jones
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
37317 CA
MD9767 HI
Self-reported in NPPES; status is on the state search
Practice location
1400 E Church St, Santa Maria, CA 93454
Phone
(805) 739-3561
Enumerated
Nov 21, 2006
Record last updated
Mar 14, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicaid ID
49376801 HI
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 1400 E Church St

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

  1. Elena Agafonova, M.D.Internal Medicine Physician1558757666
  2. Alyse Andrade, RN IBCLCLactation Consultant (Registered Nurse)1104647403
  3. Steven Andrews, PAPhysician Assistant1083352397
  4. Andrea ArthoferStudent in an Organized Health Care Education/Training Program1225772973
  5. Hannah Barrows, PA-CPhysician Assistant1528747128
  6. Nader Batal, DOFamily Medicine Physician1740923135

Verify James W. Jones in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 37317
    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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99% fewer Medicare Part D claims than the average nephrology physician in 2024

16 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. James Jones16
  2. Specialty average1,465

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.

James W. Jones among 1,468 nephrology physician records in California

James W. Jones, 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 updated2017 · 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. Muthiyaliah Babu, M.D.Santa Maria, CA 934541033141213
  2. Hatem MezherSanta Maria, CA 934541467716274
  3. Arashdeep Poonia, M.D.Santa Maria, CA 934541417235672
  4. Michael Dibiase, M.D.San Luis Obispo, CA 934051316188048
  5. Anthony Wolfe, MDSan Luis Obispo, CA 934051477637783
  6. Ernest Daniel Dytiapco, MDSan Luis Obispo, CA 934011255629846
  7. Scott Morey, M.D.San Luis Obispo, CA 934011770661894
  8. Brian Penton, M.D.San Luis Obispo, CA 934011558316083

Common questions

What is James W. Jones, M.D.'s NPI number?

James W. Jones, M.D.'s National Provider Identifier (NPI) is 1053486399, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James W. Jones, M.D. located?

The NPPES record lists a practice address at 1400 E Church St, Santa Maria, CA, 93454. Phone: (805) 739-3561. Providers update this record themselves, so call before visiting.

How can I verify James W. Jones, M.D.'s license?

NPPES lists California license number 37317, 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 James W. Jones, M.D. prescribe under Medicare Part D?

In 2024, James W. Jones, M.D. had 16 Medicare Part D claims; 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.