Dr Mary Ann Carol Carlos Besana I, MD - Medicare Family Practice in Napa, CA

Dr Mary Ann Carol Carlos Besana I, MD is a medicare enrolled "Family Medicine" physician in Napa, California. She graduated from medical school in 1988 and has 36 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Permanente Medical Group Inc and her current practice location is 3285 Claremont Way, Medicine 3, Napa, California. You can reach out to her office (for appointments etc.) via phone at (707) 258-2166.

Dr Mary Ann Carol Carlos Besana I is licensed to practice in New York (license number 230393) 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 1700894540.

Contact Information

Dr Mary Ann Carol Carlos Besana I, MD
3285 Claremont Way, Medicine 3,
Napa, CA 94558-3313
(707) 258-2166
Not Available

Map and Direction




Physician's Profile

Full NameDr Mary Ann Carol Carlos Besana I
GenderFemale
SpecialityFamily Practice
Experience36 Years
Location3285 Claremont Way, 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:
  • Dr Mary Ann Carol Carlos Besana I graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1700894540
  • Provider Enumeration Date: 08/04/2006
  • Last Update Date: 01/24/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0143211995
  • Enrollment ID: I20070427000452

Medical Identifiers

Medical identifiers for Dr Mary Ann Carol Carlos Besana I such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700894540NPI-NPPES
02527791MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 230393 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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. Dr Mary Ann Carol Carlos Besana I allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. Dr Mary Ann Carol Carlos Besana I 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
Dr Mary Ann Carol Carlos Besana I, MD
3285 Claremont Way,
Napa, CA 94558-3313

Ph: (707) 258-2166
Dr Mary Ann Carol Carlos Besana I, MD
3285 Claremont Way, Medicine 3,
Napa, CA 94558-3313

Ph: (707) 258-2166

Reviews and Comments


Family Medicine Doctors in Napa, CA

Lawrence A. Lippmann, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3285 Claremont Way, Napa, CA 94558
Phone: 707-258-2500    
Dr. Andrew Tzellas, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1141 Pear Tree Ln Ste 100, Napa, CA 94558
Phone: 707-254-1770    
David Martinez, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3230 Beard Rd, Suite B, Napa, CA 94558
Phone: 707-255-2026    
Jean Yoshioka, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3285 Claremont Way, Napa, CA 94558
Phone: 707-258-2500    
Ronald Eric Mcallister, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 126 Garden Valley Ct, Napa, CA 94558
Phone: 857-222-9946    
Manveen Sekhon, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2100 Napa Vallejo Hwy, Napa, CA 94558
Phone: 707-253-5000    Fax: 707-253-5513
Dr. Emmanuel Dela Cruz Cepe, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2100 Napa Vallejo Hwy, Napa, CA 94558
Phone: 707-253-5000    Fax: 510-797-0236

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.