NPPES file of Aug 9, 2026

Maria Carmela Nazareno Rosales, M.D.

Nephrology Physician · San Jose, CA

Maria Carmela Nazareno Rosales, M.D. is a nephrology physician with a practice address in San Jose, California, and NPI 1780706762, issued on Apr 3, 2007. Check the license (California 54935, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780706762
Name
Maria Carmela Nazareno Rosales
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
54935 CA
Self-reported in NPPES; status is on the state search
Practice location
2360 Mckee RD, San Jose, CA 95116
Phone
(408) 729-7128
Enumerated
Apr 3, 2007
Record last updated
Jul 24, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(408) 729-4125
Medicare enrollment
Enrolled (PECOS I20140903000923); 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 2360 Mckee RD

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

  1. Justine Chen, D.D.S.Dentist1417203027
  2. Maggie Chen, MDNephrology Physician1649470683
  3. Richard Eng, M.D.Oral & Maxillofacial Surgery (D.M.D.)1508850652
  4. Wen-Tsang Ku, M.D.Nephrology Physician1710986161
  5. Wen Kuan, L.AC.Acupuncturist1104290576
  6. Aimee Pham, L.AC.Acupuncturist1215250014

Verify Maria Carmela Nazareno Rosales in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 54935
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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23% fewer Medicare Part D claims than the average nephrology physician in 2024

1,131 Medicare Part D claims for 106 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Maria Carmela Rosales1,131
  2. Specialty average1,465

Most prescribed

  1. Furosemide161 claims
  2. Amlodipine Besylate93 claims
  3. Carvedilol89 claims
  4. Losartan Potassium79 claims
  5. Sevelamer Carbonate56 claims
  6. Calcium Acetate52 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score67.4
  2. Costout of 100 · 30%46.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. County OF Santa ClaraSan Jose, CA

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

Maria Carmela Nazareno Rosales among 1,468 nephrology physician records in California

Maria Carmela Nazareno Rosales, 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 2007, is newer than 52% of them.

  • NPI issued2007 · 52% of these records are older, 35% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2001 · median 2001 among the 1,128 with a school on file
  • Record last updated2014 · 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. Maggie Chen, MDSan Jose, CA 951161649470683
  2. Jeongwon Choi, M.D.San Jose, CA 951161902213820
  3. Rashid Elahi, M.D.San Jose, CA 951161790753408
  4. Ning Fu, M.D.San Jose, CA 951161124224571
  5. Wen-Tsang Ku, M.D.San Jose, CA 951161710986161
  6. Ian McCoy, M.D.San Jose, CA 951161437597747
  7. Grace No, MDSan Jose, CA 951161386865731
  8. Kajal Patel, M.D.San Jose, CA 951161366630444

Common questions

What is Maria Carmela Nazareno Rosales, M.D.'s NPI number?

Maria Carmela Nazareno Rosales, M.D.'s National Provider Identifier (NPI) is 1780706762, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Maria Carmela Nazareno Rosales, M.D. located?

The NPPES record lists a practice address at 2360 Mckee RD, San Jose, CA, 95116. Phone: (408) 729-7128. Providers update this record themselves, so call before visiting.

How can I verify Maria Carmela Nazareno Rosales, M.D.'s license?

NPPES lists California license number 54935, 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 Maria Carmela Nazareno Rosales, M.D. prescribe under Medicare Part D?

In 2024, Maria Carmela Nazareno Rosales, M.D. had 1,131 Medicare Part D claims for 106 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Maria Carmela Nazareno Rosales, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.