Margaret Leftwich Miller, MD
Forensic Psychiatry Physician · Napa, CA
Margaret Leftwich Miller, MD is a forensic psychiatry physician with a practice address in Napa, California, and NPI 1093768160, issued on May 18, 2006. Check the license (California A49932, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Margaret Leftwich Miller
- Credential
- MD
- Primary taxonomy
- Forensic Psychiatry Physician 2084F0202X
- License number
- A49932 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Napa Vallejo Highway, Napa, CA 94558
- Phone
- (707) 253-5000
- Enumerated
- May 18, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (707) 253-5513
- Entity
- Type 1 · individual
8 nearest forensic psychiatry physician records → All 109 in California → Look up another NPI →
Also registered at 2100 Napa Vallejo Highway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Anderson, MDInternal Medicine Physician1619929494
- Teresa Barnes, PSYDClinical Psychologist1659311520
- Uma BediObstetrics & Gynecology Physician1659317618
- Robbin Broadman, MDForensic Psychiatry Physician1952353310
- Kent Butzina, PHDClinical Psychologist1841242260
- Mu Chou, MDInternal Medicine Physician1699727487
Verify Margaret Leftwich Miller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A49932Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average forensic psychiatry physician in 2024
386 Medicare Part D claims for 48 beneficiaries, against an average of 803 among the 199 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Quetiapine Fumarate40 claims
- Trazodone Hcl24 claims
- Clozapine21 claims
- Sertraline Hcl20 claims
- Haloperidol Decanoate19 claims
- Benztropine Mesylate17 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.
Margaret Leftwich Miller among 109 forensic psychiatry physician records in California
Margaret Leftwich Miller, MD is one of 109 forensic psychiatry physician records with a practice address in California. 41% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 49% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileNo · 14% of these records are
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084F0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Forensic Psychiatry Physician providers in California
There are 109 forensic psychiatry physician records in California.
All 109 in California → Every provider in Napa → Forensic Psychiatry Physician nationwide →
The 8 forensic psychiatry physician records with the nearest ZIP codes
- Robbin Broadman, MDNapa, CA 945581952353310
- Katherine Warburton, D.O.Napa, CA 945581295709277
- McHeko Graves-Matthews, M.D.San Leandro, CA 945781588866735
- Richard Yarvis, M.D.Fairfield, CA 945341295865129
- David Kan, M.D.Walnut Creek, CA 945971942319918
- Michael Goldfield, M.D.San Mateo, CA 944011356425185
- Mark Levy, MDMill Valley, CA 949411689811739
- Renee Binder, M.D.San Francisco, CA 941431235173394
Common questions
What is Margaret Leftwich Miller, MD's NPI number?
Margaret Leftwich Miller, MD's National Provider Identifier (NPI) is 1093768160, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Leftwich Miller, MD located?
The NPPES record lists a practice address at 2100 Napa Vallejo Highway, Napa, CA, 94558. Phone: (707) 253-5000. Providers update this record themselves, so call before visiting.
How can I verify Margaret Leftwich Miller, MD's license?
NPPES lists California license number A49932, 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 Margaret Leftwich Miller, MD prescribe under Medicare Part D?
In 2024, Margaret Leftwich Miller, MD had 386 Medicare Part D claims for 48 beneficiaries; the average among forensic psychiatry physician prescribers was 803. 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.