NPPES file of Aug 9, 2026

Alexei D. Michelson, M.D.

Psychiatry Physician · Mission Viejo, CA

Alexei D. Michelson, M.D. is a psychiatry physician with a practice address in Mission Viejo, California, and NPI 1255372389, issued on Jun 9, 2006. Check the license (California A56309, 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
1255372389
Name
Alexei D. Michelson
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A56309 CA
Self-reported in NPPES; status is on the state search
Practice location
24800 Chrisanta Dr, Mission Viejo, CA 92691
Phone
(949) 462-9114
Enumerated
Jun 9, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(949) 460-9114
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 24800 Chrisanta Dr

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

  1. Gerri Arias, L.C.S.WClinical Social Worker1265670533
  2. Terrie Butorac, MFTMarriage & Family Therapist1437583317
  3. Iris Gonzalez-Thrash, LCSWClinical Social Worker1508914177
  4. Debra Riley, MFTMental Health Counselor1851756225
  5. Elizabeth Romo, LCSWClinical Social Worker1407961832
  6. James Shepherd, PH.D.Clinical Psychologist1942538640

Verify Alexei D. Michelson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A56309
    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

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52% fewer Medicare Part D claims than the average psychiatry physician in 2024

479 Medicare Part D claims for 38 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Alexei Michelson479
  2. Specialty average1,000

Most prescribed

  1. Clonazepam67 claims
  2. Trazodone Hcl52 claims
  3. Escitalopram Oxalate35 claims
  4. Lamotrigine28 claims
  5. Fluoxetine Hcl26 claims
  6. Lorazepam26 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: $909.65

28 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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. Alexei Michelson$909.65
  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.

Alexei D. Michelson among 8,673 psychiatry physician records in California

Alexei D. Michelson, 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 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 fileNo · 38% of these records are
  • Record last updated2007 · 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. Azhar Abdullah, MDMission Viejo, CA 926911417351503
  2. Usa Aroonlap, M.D.Mission Viejo, CA 926911609171909
  3. Karla Benzl, MDMission Viejo, CA 926911962794073
  4. Amir Faghfoory, M.D.Mission Viejo, CA 926911245558105
  5. Erin Fletcher, MDMission Viejo, CA 926911205495645
  6. Rajai Ghosheh, M.D.Mission Viejo, CA 926911164638870
  7. Scott Ispirescu, MDMission Viejo, CA 926911023148525
  8. Andrew Morrow, MDMission Viejo, CA 926911255369062

Common questions

What is Alexei D. Michelson, M.D.'s NPI number?

Alexei D. Michelson, M.D.'s National Provider Identifier (NPI) is 1255372389, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alexei D. Michelson, M.D. located?

The NPPES record lists a practice address at 24800 Chrisanta Dr, Mission Viejo, CA, 92691. Phone: (949) 462-9114. Providers update this record themselves, so call before visiting.

How can I verify Alexei D. Michelson, M.D.'s license?

NPPES lists California license number A56309, 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 Alexei D. Michelson, M.D. prescribe under Medicare Part D?

In 2024, Alexei D. Michelson, M.D. had 479 Medicare Part D claims for 38 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.