Mrs Mara Susan Williams, - Nurse Practitioner in Napa, CA

Mrs Mara Susan Williams, is a Nurse Practitioner - Adult Health based in Napa, California. Mrs Mara Susan Williams is licensed to practice in California (license number 345522) and her current practice location is 3417 Valle Verde Dr, Napa, California. She can be reached at her office (for appointments etc.) via phone at (707) 255-4172.

NPI number for Mrs Mara Susan Williams is 1861544249 and her current mailing address is 19337 Orange Ave, Sonoma, California. She does not participate in medicare program and thus does not accept medicare assignments. Her NPI Number is 1861544249.

Contact Information

Mrs Mara Susan Williams,
3417 Valle Verde Dr,
Napa, CA 94558-2414
(707) 255-4172
(707) 255-2605

Map and Direction




Provider's Profile

Full NameMrs Mara Susan Williams
GenderFemale
SpecialityNurse Practitioner - Adult Health
Location3417 Valle Verde Dr, Napa, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. She may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1861544249
  • Provider Enumeration Date: 01/17/2007
  • Last Update Date: 03/07/2023

Medical Identifiers

Medical identifiers for Mrs Mara Susan Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861544249NPI-NPPES
15902OtherCANP FURNISHING NUMBER
15902OtherCANP CERTIFICATE NUMBER
345522OtherCARN LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LA2200XNurse Practitioner - Adult Health 345522 (California)Primary

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. Mrs Mara Susan Williams is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mrs Mara Susan Williams,
19337 Orange Ave,
Sonoma, CA 95476-6215

Ph: (707) 996-6219
Mrs Mara Susan Williams,
3417 Valle Verde Dr,
Napa, CA 94558-2414

Ph: (707) 255-4172

Reviews and Comments


Nurse Practitioner Nurses in Napa, CA

Jorge Efrain Roman, NP
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Phone: 707-254-1770    Fax: 707-251-2995
Mrs. Bethany Lewis, FNP-C
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Practice Location: 1175 Trancas St, Napa, CA 94558
Phone: 707-258-6053    
Sheila Anderson Cox, N.P.
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Practice Location: 2344 Old Sonoma Rd, Napa, CA 94559
Phone: 707-253-6081    
Margaret Lynn Mackey, F.N.P.
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Medicare: Accepting Medicare Assignments
Practice Location: 3010 Beard Rd, Napa, CA 94558
Phone: 707-257-1550    Fax: 707-819-9014
Eugene Butler Jr., NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1621 W Imola Ave, Napa, CA 94559
Phone: 707-251-4280    
Janet M Bruneau, ACNP-BC
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 1000 Trancas St, Napa, CA 94558
Phone: 707-299-7637    
Mrs. Ana Elisabeta Douglas, FNP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1621 W Imola Ave, Napa, CA 94559
Phone: 707-358-6781    

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.

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