Dr Mason Lee Donnell, PHD, PA - Medicare Physician Assistant in San Rafael, CA

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Dr Mason Lee Donnell, PHD, PA is a medicare enrolled "Physician Assistant" in San Rafael, California. His current practice location is 4000 Civic Center Dr, San Rafael, California. You can reach out to his office (for appointments etc.) via phone at (415) 492-3333.

Dr Mason Lee Donnell is licensed to practice in California (license number 62685) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1891417390.

Contact Information

Dr Mason Lee Donnell, PHD, PA
4000 Civic Center Dr,
San Rafael, CA 94903-4171
(415) 492-3333
Not Available

Map and Direction




Provider's Profile

Full NameDr Mason Lee Donnell
GenderMale
SpecialityPhysician Assistant
Location4000 Civic Center Dr, San Rafael, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1891417390
  • Provider Enumeration Date: 09/13/2022
  • Last Update Date: 03/07/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 9739558875
  • Enrollment ID: I20230630000741

Medical Identifiers

Medical identifiers for Dr Mason Lee Donnell such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891417390NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 62685 (California)Primary

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 Mason Lee Donnell allows following entities to bill medicare on his behalf.
Entity NameOle Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700976503
PECOS PAC ID: 7315934767
Enrollment ID: O20040427001735
Entity NameRegents Univ of California UCSF
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124439807
PECOS PAC ID: 6305160300
Enrollment ID: O20150122001375

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 Mason Lee Donnell 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 Mason Lee Donnell, PHD, PA
1141 Pear Tree Ln Ste 100,
Napa, CA 94558-6485

Ph: (707) 254-1770		Dr Mason Lee Donnell, PHD, PA
4000 Civic Center Dr,
San Rafael, CA 94903-4171

Ph: (415) 492-3333

Reviews and Comments


Physician Assistant Nurses in San Rafael, CA

Miranda Minh-han Nguyen,
Physician Assistant
Medicare: May Accept Medicare Assignments
Practice Location: 4000 Civic Center Dr, San Rafael, CA 94903
Phone: 415-492-3333    
Miguel Serrato, ATC OT-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 50 Acacia Ave, San Rafael, CA 94901
Phone: 415-457-4440    
Page Tenley, PA-C
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 2 H St, San Rafael, CA 94901
Phone: 415-459-4907    
Phyllis Won, PA-C
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 99 Montecillo Rd, San Rafael, CA 94903
Phone: 415-444-2000    
Thi Tran, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 50 Acacia Ave, San Rafael, CA 94901
Phone: 415-457-4440    
Chantilay Ruffin,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 50 Acacia Ave, Meadowlands 302, San Rafael, CA 94901
Phone: 415-482-3571    
Nicole M Newhauser, PA
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 4000 Civic Center Dr Ste 209, San Rafael, CA 94903
Phone: 415-925-8963    

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.