NPPES file of Aug 9, 2026

Olivia Marie Orteza

Nephrology Physician · Sacramento, CA

Olivia Marie Orteza is a nephrology physician with a practice address in Sacramento, California, and NPI 1316395569, issued on May 27, 2016. Check the license (California 20A18247, 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
1316395569
Name
Olivia Marie Orteza
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
20A18247 CA
SL1204 NV
Self-reported in NPPES; status is on the state search
Practice location
333 University Ave Ste 120, Sacramento, CA 95825
Phone
(916) 426-1969
Enumerated
May 27, 2016
Record last updated
Jun 13, 2025
Medicare enrollment
Enrolled (PECOS I20220830000516); accepts Medicare assignment
Medical or professional school
Pacific Medical College, 2017
Telehealth
Offers telehealth (CMS)
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 333 University Ave Ste 120

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

  1. Syed Ali, M.D.Nephrology Physician1376799858
  2. Nancy Calton, FNPFamily Nurse Practitioner1720585177
  3. Maureen Campbell, NPFamily Nurse Practitioner1326763319
  4. Eric Chang, M.D.Nephrology Physician1477996031
  5. Pauline DollagaFamily Nurse Practitioner1962207001
  6. Sheldon LeongNephrology Physician1467764654

Verify Olivia Marie Orteza in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A18247
    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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63% fewer Medicare Part D claims than the average nephrology physician in 2024

539 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. Brand-name drugs were 12% of claims.

  1. Olivia Orteza539
  2. Specialty average1,465

Most prescribed

  1. Amlodipine Besylate96 claims
  2. Sevelamer Carbonate47 claims
  3. Calcitriol45 claims
  4. Nifedipine Er34 claims
  5. Lisinopril31 claims
  6. Losartan Potassium29 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 MIPS final score for 2023 (Medicare payment program): 20.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costout of 100 · 30%67.3
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $1,259.95

13 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, Inc. 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. Olivia Orteza$1,259.95
  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. Capital Nephrology Medical GroupSacramento, CA

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

Olivia Marie Orteza among 1,468 nephrology physician records in California

Olivia Marie Orteza 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 2016, is newer than 89% of them.

  • NPI issued2016 · 89% of these records are older, 9% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2017 · median 2001 among the 1,128 with a school on file
  • Record last updated2025 · 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. Syed Ali, M.D.Sacramento, CA 958251376799858
  2. Anthony Alvarado, MDSacramento, CA 958251497906374
  3. Eric Chang, M.D.Sacramento, CA 958251477996031
  4. James Gehrig, MDSacramento, CA 958251619049434
  5. Sheldon LeongSacramento, CA 958251467764654
  6. Tuan Nguyen, M.D.Sacramento, CA 958251831325174
  7. Rekha Pareek, MDSacramento, CA 958251497833123
  8. Jignesh Patel, MDSacramento, CA 958251114005832

Common questions

What is Olivia Marie Orteza's NPI number?

Olivia Marie Orteza's National Provider Identifier (NPI) is 1316395569, issued on May 27, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Olivia Marie Orteza located?

The NPPES record lists a practice address at 333 University Ave Ste 120, Sacramento, CA, 95825. Phone: (916) 426-1969. Providers update this record themselves, so call before visiting.

How can I verify Olivia Marie Orteza's license?

NPPES lists California license number 20A18247, 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 Olivia Marie Orteza prescribe under Medicare Part D?

In 2024, Olivia Marie Orteza had 539 Medicare Part D claims for 121 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Olivia Marie Orteza's MIPS final score?

The 2023 MIPS final score is 20.2 of 100. 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.