Mary U. Staunton, MD
Psychiatry Physician · Walnut Creek, CA
Mary U. Staunton, MD is a psychiatry physician with a practice address in Walnut Creek, California, and NPI 1386722460, issued on Nov 2, 2006. Check the license (California G66913, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary U. Staunton
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G66913 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1425 S Main St, Walnut Creek, CA 94596
- Phone
- (925) 295-4000
- Enumerated
- Nov 2, 2006
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00G669130 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1425 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary U. Staunton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G66913Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average psychiatry physician in 2024
673 Medicare Part D claims for 151 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Quetiapine Fumarate73 claims
- Clonazepam48 claims
- Gabapentin47 claims
- Trazodone Hcl42 claims
- Duloxetine Hcl36 claims
- Risperidone32 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.
Mary U. Staunton among 8,673 psychiatry physician records in California
Mary U. Staunton, MD 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 updated2021 · 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
- Michael Schwab, M.D.Walnut Creek, CA 945961093880601
- Richard Silver, MDWalnut Creek, CA 945961891873972
Common questions
What is Mary U. Staunton, MD's NPI number?
Mary U. Staunton, MD's National Provider Identifier (NPI) is 1386722460, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary U. Staunton, MD located?
The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4000. Providers update this record themselves, so call before visiting.
How can I verify Mary U. Staunton, MD's license?
NPPES lists California license number G66913, 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 Mary U. Staunton, MD prescribe under Medicare Part D?
In 2024, Mary U. Staunton, MD had 673 Medicare Part D claims for 151 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.