NPPES file of Aug 9, 2026

Erik Quan

Psychiatry Physician · Redwood City, CA

Erik Quan is a psychiatry physician with a practice address in Redwood City, California, and NPI 1255998316, issued on May 23, 2019. Check the license 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
1255998316
Name
Erik Quan
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
306158 NY
Self-reported in NPPES; status is on the state search
Practice location
1400 Veterans Blvd FL 4, Redwood City, CA 94063
Phone
(650) 627-1660
Enumerated
May 23, 2019
Record last updated
Oct 8, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1400 Veterans Blvd FL 4

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

  1. Anuradha Aurora, PH.D.Clinical Psychologist1720131808
  2. Gilly DosovitskyClinical Child & Adolescent Psychologist1518687763
  3. Marie Duran-Whitney, PSYDClinical Psychologist1669535415
  4. Farzaneh Eleen, PH.DPsychologist1710036694
  5. Lisa Flook Hammer, PHDClinical Psychologist1831702026
  6. Brian Huang, MDPsychiatry Physician1215425608

Verify Erik Quan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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97% fewer Medicare Part D claims than the average psychiatry physician in 2024

25 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Erik Quan25
  2. Specialty average1,000

Most prescribed

  1. Gabapentin13 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): 84.5 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 score93.3
  2. Costout of 100 · 30%54.9
  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).

Erik Quan among 8,673 psychiatry physician records in California

Erik Quan is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Anil Assudani, M.D,Redwood City, CA 940631497753909
  2. Gary Bozzini, MDRedwood City, CA 940631871671461
  3. Jason Bromley, MDRedwood City, CA 940631598835142
  4. Sarah Carey, MDRedwood City, CA 940631164509345
  5. Bradford Crowell, MDRedwood City, CA 940631457439077
  6. John Furman, M.D.Redwood City, CA 940631639251697
  7. John Herbert, MDRedwood City, CA 940631396775870
  8. Valerie Herman, MDRedwood City, CA 940631164500724

Common questions

What is Erik Quan's NPI number?

Erik Quan's National Provider Identifier (NPI) is 1255998316, issued on May 23, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Erik Quan located?

The NPPES record lists a practice address at 1400 Veterans Blvd FL 4, Redwood City, CA, 94063. Phone: (650) 627-1660. Providers update this record themselves, so call before visiting.

How can I verify Erik Quan's license?

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 Erik Quan prescribe under Medicare Part D?

In 2024, Erik Quan had 25 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Erik Quan's MIPS final score?

The 2023 MIPS final score is 84.5 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.