Margaret Leftwich Miller, MD - Medicare Psychiatry in Napa, CA

Margaret Leftwich Miller, MD is a medicare enrolled "Psychiatry & Neurology - Forensic Psychiatry" physician in Napa, California. She graduated from medical school in 1988 and has 36 years of diverse experience with area of expertise as Psychiatry. She is a member of the group practice Contra Costa County and her current practice location is 2100 Napa Vallejo Highway, Napa, California. You can reach out to her office (for appointments etc.) via phone at (707) 253-5000.

Margaret Leftwich Miller is licensed to practice in California (license number A49932) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1093768160.

Contact Information

Margaret Leftwich Miller, MD
2100 Napa Vallejo Highway,
Napa, CA 94558-6293
(707) 253-5000
(707) 253-5513

Map and Direction




Physician's Profile

Full NameMargaret Leftwich Miller
GenderFemale
SpecialityPsychiatry
Experience36 Years
Location2100 Napa Vallejo Highway, Napa, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Margaret Leftwich Miller graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1093768160
  • Provider Enumeration Date: 05/18/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 9032258371
  • Enrollment ID: I20091130000460

Medical Identifiers

Medical identifiers for Margaret Leftwich Miller such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1093768160NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084F0202XPsychiatry & Neurology - Forensic Psychiatry A49932 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Contra Costa Regional Medical CenterMartinez, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Contra Costa County862805297457

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Margaret Leftwich Miller allows following entities to bill medicare on her behalf.
Entity NameContra Costa County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376620336
PECOS PAC ID: 8628052974
Enrollment ID: O20050707001058

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Margaret Leftwich Miller is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Margaret Leftwich Miller, MD
1600 9th St, Room 205 Mailstop 2-3,
Sacramento, CA 95814-6414

Ph: (916) 654-2431
Margaret Leftwich Miller, MD
2100 Napa Vallejo Highway,
Napa, CA 94558-6293

Ph: (707) 253-5000

Reviews and Comments


Psychiatry & Neurology Doctors in Napa, CA

Javed Iqbal, MD
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: 2100 Napa-vallejo Highway, Napa, CA 94558
Phone: 707-253-5000    Fax: 707-253-5513
Dr. Richard James Forde, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 2261 Elm St, Building D, Napa, CA 94559
Phone: 707-253-4727    Fax: 707-253-4815
Mr. Laurentiu Dumitrescu, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 2100 Napa Vallejo Hwy, Napa, CA 94558
Phone: 774-826-1570    
Joel Steven Mostow, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 2100 Napa Vallejo Hwy., Napa, CA 94558
Phone: 707-253-5654    Fax: 707-253-5097
Dr. Margaret A Schlatter, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 3421 Valle Verde Dr, Napa, CA 94558
Phone: 707-252-6546    Fax: 707-252-0942
Dr. Domingo Ordillas Laguitan Jr., MD
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: 2100 Napa Vallejo Hwy, Napa, CA 94558
Phone: 707-253-5764    Fax: 707-253-5513
Dr. Siva Yoganathan, M.D.
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: 2100 Napa Vallejo Hwy, Napa, CA 94558
Phone: 707-253-5000    Fax: 707-253-5513

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.