NPPES file of Aug 9, 2026

Jonathan Dau, M.D.

Rheumatology Physician · Newport Beach, CA

Jonathan Dau, M.D. is a rheumatology physician with a practice address in Newport Beach, California, and NPI 1467809608, issued on May 18, 2016. Check the license (California A193324, 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
1467809608
Name
Jonathan Dau
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
A193324 CA
Self-reported in NPPES; status is on the state search
Practice location
510 Superior Ave Ste 200D, Newport Beach, CA 92663
Phone
(949) 791-3001
Enumerated
May 18, 2016
Record last updated
Feb 27, 2024
Fax
(949) 791-3110
Medicare enrollment
Enrolled (PECOS I20240326004093); 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 510 Superior Ave Ste 200D

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

  1. Kristine Brown, M.D.Pediatrics Physician1104820547
  2. Joseph Ling, MDInternal Medicine Physician1558894139
  3. Nichole Matlick, M.D.Pediatrics Physician1982891396

Verify Jonathan Dau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A193324
    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 rheumatology physician in 2024

858 Medicare Part D claims for 207 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Jonathan Dau858
  2. Specialty average1,978

Most prescribed

  1. Prednisone227 claims
  2. Hydroxychloroquine Sulfate107 claims
  3. Methotrexate68 claims
  4. Alendronate Sodium50 claims
  5. Colchicine31 claims
  6. Methylprednisolone26 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): 97.6 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 score86.5
  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: $5,361.11

83 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Dau$5,361.11
  2. Specialty average$8,538.33

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. Hoag ClinicNewport Beach, CA

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

Jonathan Dau among 926 rheumatology physician records in California

Jonathan Dau, M.D. is one of 926 rheumatology physician records with a practice address in California. 81% 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 85% of them.

  • NPI issued2016 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2016 · median 2003 among the 641 with a school on file
  • Record last updated2024 · 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 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Kathy Karamlou, MDNewport Beach, CA 926631740209303
  2. Dan Mandel, MDNewport Beach, CA 926631578672309
  3. Kiana Taba, M.D.Newport Beach, CA 926631770995128
  4. Mitchell Austin, MDNewport Beach, CA 926601669542601
  5. Dawn Hnat, M.D.Newport Beach, CA 926601861571812
  6. Behzad Rahavi, M.D.Newport Beach, CA 926601811944069
  7. Chay Bae, D.O.Laguna Hills, CA 926531861926982
  8. Sunil Gupta, D.O.Laguna Hills, CA 926531437310059

Common questions

What is Jonathan Dau, M.D.'s NPI number?

Jonathan Dau, M.D.'s National Provider Identifier (NPI) is 1467809608, issued on May 18, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan Dau, M.D. located?

The NPPES record lists a practice address at 510 Superior Ave Ste 200D, Newport Beach, CA, 92663. Phone: (949) 791-3001. Providers update this record themselves, so call before visiting.

How can I verify Jonathan Dau, M.D.'s license?

NPPES lists California license number A193324, 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 Jonathan Dau, M.D. prescribe under Medicare Part D?

In 2024, Jonathan Dau, M.D. had 858 Medicare Part D claims for 207 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is Jonathan Dau, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.6 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.