NPPES file of Aug 9, 2026

Jose M. R. Santos, M.D.

Nephrology Physician · Modesto, CA

Jose M. R. Santos, M.D. is a nephrology physician with a practice address in Modesto, California, and NPI 1073577573, issued on Apr 13, 2006. Check the license (California A52954, 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
1073577573
Name
Jose M. R. Santos
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A52954 CA
Self-reported in NPPES; status is on the state search
Practice location
608 E Orangeburg Ave, Modesto, CA 95350
Phone
(209) 529-2645
Enumerated
Apr 13, 2006
Record last updated
Feb 4, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(209) 529-3024
Medicaid IDs
GR0099870 CA
00A529540 CA
Medicare enrollment
Enrolled (PECOS I20050825000840); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 608 E Orangeburg Ave

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

  1. Mohini Alexander, M.D.Internal Medicine Physician1609106715
  2. Josephine Baisac, M.D.Nephrology Physician1548223480
  3. Ravikiran Vegasana, M.D.Nephrology Physician1770738825

Verify Jose M. R. Santos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A52954
    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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16% fewer Medicare Part D claims than the average nephrology physician in 2024

1,227 Medicare Part D claims for 121 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Jose Santos1,227
  2. Specialty average1,465

Most prescribed

  1. Prosol111 claims
  2. Sevelamer Carbonate79 claims
  3. Furosemide76 claims
  4. Amlodipine Besylate74 claims
  5. Calcium Acetate59 claims
  6. Losartan Potassium56 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.

Industry payments in 2024: $242.48

5 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jose Santos$242.48
  2. Specialty average$3,091.37

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

  1. Valley Nephrology AssociatesTurlock, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jose M. R. Santos among 1,468 nephrology physician records in California

Jose M. R. Santos, 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 fileYes · 77% of these records are
  • Graduated1984 · median 2001 among the 1,128 with a school on file
  • 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. Josephine Baisac, M.D.Modesto, CA 953501548223480
  2. Mark Fahlen, MDModesto, CA 953501679539415
  3. Yuqiang Ge, M.D., PHDModesto, CA 953501740588680
  4. Kriengsak Itsara, MDModesto, CA 953501558363739
  5. Chang Joo, MDModesto, CA 953501508868787
  6. Kenneth Liu, MDModesto, CA 953501326042391
  7. Tong Sun, MDModesto, CA 953501629161336
  8. Ravikiran Vegasana, M.D.Modesto, CA 953501770738825

Common questions

What is Jose M. R. Santos, M.D.'s NPI number?

Jose M. R. Santos, M.D.'s National Provider Identifier (NPI) is 1073577573, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jose M. R. Santos, M.D. located?

The NPPES record lists a practice address at 608 E Orangeburg Ave, Modesto, CA, 95350. Phone: (209) 529-2645. Providers update this record themselves, so call before visiting.

How can I verify Jose M. R. Santos, M.D.'s license?

NPPES lists California license number A52954, 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 Jose M. R. Santos, M.D. prescribe under Medicare Part D?

In 2024, Jose M. R. Santos, M.D. had 1,227 Medicare Part D claims for 121 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.