NPPES file of Aug 9, 2026

Michael David Schwartz, D.O.

Psychiatry Physician · Costa Mesa, CA

Michael David Schwartz, D.O. is a psychiatry physician with a practice address in Costa Mesa, California, and NPI 1861584708, issued on Sep 29, 2006. Check the license (California 20A7992, 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
1861584708
Name
Michael David Schwartz
Credential
D.O.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
20A7992 CA
Self-reported in NPPES; status is on the state search
Practice location
427 E 17TH St, Costa Mesa, CA 92627
Phone
(949) 478-3444
Enumerated
Sep 29, 2006
Record last updated
Jun 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(949) 759-7743
Medicaid ID
0020A7992 CA
Medicare enrollment
Enrolled (PECOS I20120213000653); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 1994
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.
Download card Updates feed

Also registered at 427 E 17TH St

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

  1. Evagelos Coskinas, M.D.Psychiatry Physician1437382314
  2. Jeffrey Safarik, O.D.Optometrist1801882253

Verify Michael David Schwartz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A7992
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.1 times the Medicare Part D claims of the average psychiatry physician in 2024

2,071 Medicare Part D claims for 109 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Michael Schwartz2,071
  2. Specialty average1,000

Most prescribed

  1. Clozapine149 claims
  2. Gabapentin135 claims
  3. Quetiapine Fumarate135 claims
  4. Hydroxyzine Pamoate110 claims
  5. Divalproex Sodium97 claims
  6. Clonazepam92 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.

Industry payments in 2024: $750.76

32 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Schwartz$750.76
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Michael David Schwartz among 8,673 psychiatry physician records in California

Michael David Schwartz, D.O. 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated1994 · median 2005 among the 3,295 with a school on file
  • Record last updated2015 · 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. Evagelos Coskinas, M.D.Costa Mesa, CA 926271437382314
  2. Gary Dylewski, DOCosta Mesa, CA 926271831383207
  3. Hugo Gomez RuedaCosta Mesa, CA 926271346701455
  4. Diane Highum, M.D.Costa Mesa, CA 926271396868386
  5. Harvey Jaffe, M.D.Costa Mesa, CA 926271194751123
  6. Thomas Phan, M.D.Costa Mesa, CA 926271740716687
  7. Gail Ross, M.D.Costa Mesa, CA 926271619043361
  8. Nisha Warikoo, M.D.Costa Mesa, CA 926271306164462

Common questions

What is Michael David Schwartz, D.O.'s NPI number?

Michael David Schwartz, D.O.'s National Provider Identifier (NPI) is 1861584708, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael David Schwartz, D.O. located?

The NPPES record lists a practice address at 427 E 17TH St, Costa Mesa, CA, 92627. Phone: (949) 478-3444. Providers update this record themselves, so call before visiting.

How can I verify Michael David Schwartz, D.O.'s license?

NPPES lists California license number 20A7992, 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 Michael David Schwartz, D.O. prescribe under Medicare Part D?

In 2024, Michael David Schwartz, D.O. had 2,071 Medicare Part D claims for 109 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.