Lynn Annette Keenan, MD - Medicare Internal Medicine in Fresno, CA

Lynn Annette Keenan, MD is a medicare enrolled "Internal Medicine - Sleep Medicine" physician in Fresno, California. She went to Temple University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice University Faculty Associates Inc and her current practice location is 6733 N Willow Ave Ste 107, Fresno, California. You can reach out to her office (for appointments etc.) via phone at (559) 435-4700.

Lynn Annette Keenan is licensed to practice in California (license number G71333) 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 1528176500.

Contact Information

Lynn Annette Keenan, MD
6733 N Willow Ave Ste 107,
Fresno, CA 93710-5953
(559) 435-4700
(559) 298-7951

Map and Direction




Physician's Profile

Full NameLynn Annette Keenan
GenderFemale
SpecialityInternal Medicine
Experience35 Years
Location6733 N Willow Ave Ste 107, Fresno, 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:
  • Lynn Annette Keenan attended and graduated from Temple University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1528176500
  • Provider Enumeration Date: 08/29/2006
  • Last Update Date: 02/02/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 4082787411
  • Enrollment ID: I20080718000189

Medical Identifiers

Medical identifiers for Lynn Annette Keenan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528176500NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RS0012XInternal Medicine - Sleep Medicine G71333 (California)Primary
207R00000XInternal Medicine G71333 (California)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Faculty Associates Inc6507181708257

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. Lynn Annette Keenan allows following entities to bill medicare on her behalf.
Entity NameUniversity Faculty Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073911137
PECOS PAC ID: 6507181708
Enrollment ID: O20150211000164

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. Lynn Annette Keenan 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
Lynn Annette Keenan, MD
2625 E Divisadero St,
Fresno, CA 93721-1431

Ph: () -
Lynn Annette Keenan, MD
6733 N Willow Ave Ste 107,
Fresno, CA 93710-5953

Ph: (559) 435-4700

Reviews and Comments


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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).

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