Michael J. Schwab, M.D.
Psychiatry Physician · Walnut Creek, CA
Michael J. Schwab, M.D. is a psychiatry physician with a practice address in Walnut Creek, California, and NPI 1093880601, issued on Nov 21, 2006. Check the license (California G36202, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael J. Schwab
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G36202 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1844 San Miguel Dr, Walnut Creek, CA 94596
- Phone
- (925) 930-7744
- Enumerated
- Nov 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (925) 930-7747
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1844 San Miguel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael J. Schwab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G36202Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average psychiatry physician in 2024
1,019 Medicare Part D claims for 108 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.
Most prescribed
- Bupropion Xl110 claims
- Duloxetine Hcl71 claims
- Buspirone Hcl60 claims
- Trazodone Hcl58 claims
- Alprazolam57 claims
- Zolpidem Tartrate55 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.
Michael J. Schwab among 8,673 psychiatry physician records in California
Michael J. Schwab, 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).
67 psychiatry physician records list a practice address in Walnut Creek
They are 67 of the 6,170 NPPES records with a practice address in Walnut Creek, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Walnut Creek → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Orin Bigman, MDWalnut Creek, CA 945961669550760
- Eugene Crayton, MDWalnut Creek, CA 945961740327923
- Dharmini Harichandran, M.DWalnut Creek, CA 945961386668820
- Chelvadurai Harichandran, M.DWalnut Creek, CA 945961386782860
- John Hawkins, DOWalnut Creek, CA 945961730267824
- David Ritvo, M.D.Walnut Creek, CA 945961205832094
- Richard Silver, MDWalnut Creek, CA 945961891873972
- Alex Smirnoff, M.D.Walnut Creek, CA 945961649329681
Common questions
What is Michael J. Schwab, M.D.'s NPI number?
Michael J. Schwab, M.D.'s National Provider Identifier (NPI) is 1093880601, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Schwab, M.D. located?
The NPPES record lists a practice address at 1844 San Miguel Dr, Walnut Creek, CA, 94596. Phone: (925) 930-7744. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Schwab, M.D.'s license?
NPPES lists California license number G36202, 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 J. Schwab, M.D. prescribe under Medicare Part D?
In 2024, Michael J. Schwab, M.D. had 1,019 Medicare Part D claims for 108 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.