NPPES file of Aug 9, 2026

John Hau, M.D.

Pain Medicine (Anesthesiology) Physician · Santa Rosa, CA

John Hau, M.D. is a pain medicine (anesthesiology) physician with a practice address in Santa Rosa, California, and NPI 1922231042, issued on Aug 24, 2009. Check the license (California A123619, 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
1922231042
Name
John Hau
Credential
M.D.
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
A123619 CA
Self-reported in NPPES; status is on the state search
Practice location
392 Tesconi CT, Santa Rosa, CA 95401
Phone
(707) 623-9803
Enumerated
Aug 24, 2009
Record last updated
Jun 9, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(707) 843-3257
Medicare enrollment
Enrolled (PECOS I20140425000914); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2009
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 392 Tesconi CT

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

  1. Viki Chaudrue, FNPFamily Nurse Practitioner1184196271
  2. Jennifer Follestad, N.P.Nurse Practitioner1770553273
  3. Krupaliben PatelNurse Practitioner1801597356
  4. Morgan Welch, D.O.Anesthesiology Physician1851827315
  5. Michael Yang, M.D.Pain Medicine (Anesthesiology) Physician1063665438

Verify John Hau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A123619
    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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3% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

1,695 Medicare Part D claims for 347 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 945 claims were for opioids.

  1. John Hau1,695
  2. Specialty average1,750

Most prescribed

  1. Hydrocodone-Acetaminophen352 claims
  2. Gabapentin238 claims
  3. Oxycodone-Acetaminophen158 claims
  4. Oxycodone Hcl138 claims
  5. Tramadol Hcl133 claims
  6. Pregabalin130 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): 0 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. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  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: $1,245.79

67 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Hau$1,245.79
  2. Specialty average$3,225.41

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. Summit Pain Alliance IncSanta Rosa, CA

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

John Hau among 536 pain medicine (anesthesiology) physician records in California

John Hau, M.D. is one of 536 pain medicine (anesthesiology) 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 2009, is newer than 62% of them.

  • NPI issued2009 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2009 · median 2004 among the 367 with a school on file
  • Record last updated2014 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in California

There are 536 pain medicine (anesthesiology) physician records in California.

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Michael Yang, M.D.Santa Rosa, CA 954011063665438
  2. Ramneek Dhillon, MD, MSCSanta Rosa, CA 954031285261974
  3. Jason Pope, MDSanta Rosa, CA 954031215078647
  4. Andrea Rubinstein, M.D.Santa Rosa, CA 954031972539989
  5. Bashar Ahmed, M.D.Santa Rosa, CA 954051548675663
  6. Kate Black, MDSanta Rosa, CA 954051023068574
  7. Allen Gruber, M.DSanta Rosa, CA 954051689747602
  8. Eric Hodes, MDSanta Rosa, CA 954051447201900

Common questions

What is John Hau, M.D.'s NPI number?

John Hau, M.D.'s National Provider Identifier (NPI) is 1922231042, issued on Aug 24, 2009. An NPI identifies a provider in billing; it is not a license.

Where is John Hau, M.D. located?

The NPPES record lists a practice address at 392 Tesconi CT, Santa Rosa, CA, 95401. Phone: (707) 623-9803. Providers update this record themselves, so call before visiting.

How can I verify John Hau, M.D.'s license?

NPPES lists California license number A123619, 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 John Hau, M.D. prescribe under Medicare Part D?

In 2024, John Hau, M.D. had 1,695 Medicare Part D claims for 347 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.

What is John Hau, M.D.'s MIPS final score?

The 2023 MIPS final score is 0 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.