NPPES file of Aug 9, 2026

Laurie Chen, M.D.

Psychiatry Physician · Pleasanton, CA

Laurie Chen, M.D. is a psychiatry physician with a practice address in Pleasanton, California, and NPI 1861689820, issued on Oct 3, 2007. Check the license (California A101517, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861689820
Name
Laurie Chen
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A101517 CA
Self-reported in NPPES; status is on the state search
Practice location
3825 Hopyard RD, Pleasanton, CA 94588
Phone
(925) 847-5051
Enumerated
Oct 3, 2007
Record last updated
Feb 11, 2022
Fax
(925) 847-5593
Medicare enrollment
Enrolled (PECOS I20080708000519); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2006
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 3825 Hopyard RD

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

  1. Allison Delorefice, PHDClinical Psychologist1306226832
  2. Spencer Gross, PH.D.Clinical Psychologist1447300835
  3. Rebecca Hirsch, MDPsychiatry Physician1033295563
  4. Janet Merz, LCSWClinical Social Worker1851467302
  5. Mary O'Neill, LCSWClinical Social Worker1417217878
  6. Marie Sum, PSY.D.Clinical Child & Adolescent Psychologist1396804399

Verify Laurie Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A101517
    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 psychiatry physician in 2024

967 Medicare Part D claims for 119 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Laurie Chen967
  2. Specialty average1,000

Most prescribed

  1. Clonazepam78 claims
  2. Lamotrigine73 claims
  3. Lorazepam55 claims
  4. Mirtazapine45 claims
  5. Buprenorphine-Naloxone43 claims
  6. Olanzapine39 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncPleasanton, CA

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

Laurie Chen among 8,673 psychiatry physician records in California

Laurie Chen, M.D. 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 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2006 · median 2005 among the 3,295 with a school on file
  • Record last updated2022 · 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. Mudassir Ali, M.D.Pleasanton, CA 945881245278548
  2. Dipti Bhakta, MDPleasanton, CA 945881558569400
  3. Juan De Hoyos, MDPleasanton, CA 945881336181411
  4. Kathryn Econome, MDPleasanton, CA 945881811069636
  5. Lisa Fazzolari, DOPleasanton, CA 945881679793269
  6. David Finkelstein, M.D.Pleasanton, CA 945881124179262
  7. Rebecca Hirsch, MDPleasanton, CA 945881033295563
  8. Rim Ibrahim, MDPleasanton, CA 945881861552291

Common questions

What is Laurie Chen, M.D.'s NPI number?

Laurie Chen, M.D.'s National Provider Identifier (NPI) is 1861689820, issued on Oct 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Laurie Chen, M.D. located?

The NPPES record lists a practice address at 3825 Hopyard RD, Pleasanton, CA, 94588. Phone: (925) 847-5051. Providers update this record themselves, so call before visiting.

How can I verify Laurie Chen, M.D.'s license?

NPPES lists California license number A101517, 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 Laurie Chen, M.D. prescribe under Medicare Part D?

In 2024, Laurie Chen, M.D. had 967 Medicare Part D claims for 119 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

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.