NPPES file of Aug 9, 2026

Jennifer Xu, M.D.

Cardiovascular Disease Physician · Orange, CA

Jennifer Xu, M.D. is a cardiovascular disease physician with a practice address in Orange, California, and NPI 1659802536, issued on Mar 23, 2017. Check the license (California A159793, 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
1659802536
Name
Jennifer Xu
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
A159793 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 456-5691
Enumerated
Mar 23, 2017
Record last updated
Apr 10, 2023
Fax
(714) 456-8874
Medicare enrollment
Enrolled (PECOS I20230508001397); accepts Medicare assignment
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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Jennifer Xu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A159793
    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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57% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,319 Medicare Part D claims for 225 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Jennifer Xu1,319
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate121 claims
  2. Amlodipine Besylate116 claims
  3. Furosemide108 claims
  4. Atorvastatin Calcium97 claims
  5. Carvedilol81 claims
  6. Losartan Potassium59 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): 100 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 score82.4
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,915.37

8 payments; by number, the most common kind was food and beverage; the largest payer was Ancora Heart, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Xu$1,915.37
  2. Specialty average$3,819.56

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. UC RegentsOrange, CA

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

Jennifer Xu among 2,574 cardiovascular disease physician records in California

Jennifer Xu, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 91% of them.

  • NPI issued2017 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2017 · median 1999 among the 1,742 with a school on file
  • Record last updated2023 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Hossein Alimadadian, M.D.Orange, CA 928681285664029
  2. Dicran Baron, MDOrange, CA 928681881689347
  3. Michael Dam, MDOrange, CA 928681376547000
  4. Irmina Gradus-Pizlo, M.D.Orange, CA 928681356305254
  5. Warren Johnston, MDOrange, CA 928681427052802
  6. Morton Kern, MDOrange, CA 928681770587131
  7. Jessica Li, M.D.Orange, CA 928681982638649
  8. Donald Mahon, M.D.Orange, CA 928681255335659

Common questions

What is Jennifer Xu, M.D.'s NPI number?

Jennifer Xu, M.D.'s National Provider Identifier (NPI) is 1659802536, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Xu, M.D. located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-5691. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Xu, M.D.'s license?

NPPES lists California license number A159793, 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 Jennifer Xu, M.D. prescribe under Medicare Part D?

In 2024, Jennifer Xu, M.D. had 1,319 Medicare Part D claims for 225 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is Jennifer Xu, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.