Mari Ann Keithahn, MD - Medicare Ophthalmology in Columbia, MO

Mari Ann Keithahn, MD is a medicare enrolled "Ophthalmology" physician in Columbia, Missouri. She went to Duke University School Of Medicine and graduated in 1990 and has 34 years of diverse experience with area of expertise as Ophthalmology. Her current practice location is 105 N Keene St Ste 102, Columbia, Missouri. You can reach out to her office (for appointments etc.) via phone at (573) 777-8738.

Mari Ann Keithahn is licensed to practice in Missouri (license number 111416) 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 1902880313.

Contact Information

Mari Ann Keithahn, MD
105 N Keene St Ste 102,
Columbia, MO 65201-8131
(573) 777-8738
(573) 777-8739

Map and Direction




Physician's Profile

Full NameMari Ann Keithahn
GenderFemale
SpecialityOphthalmology
Experience34 Years
Location105 N Keene St Ste 102, Columbia, Missouri
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:
  • Mari Ann Keithahn attended and graduated from Duke University School Of Medicine in 1990
  NPI Data:
  • NPI Number: 1902880313
  • Provider Enumeration Date: 11/30/2005
  • Last Update Date: 06/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5496813156
  • Enrollment ID: I20081111000335

Medical Identifiers

Medical identifiers for Mari Ann Keithahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902880313NPI-NPPES
101298OtherMOBLUE CROSS BLUE SHIELD
208468504MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207WX0107XOphthalmology - Retina Specialist 111416 (Missouri)Secondary
207W00000XOphthalmology 111416 (Missouri)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. Mari Ann Keithahn allows following entities to bill medicare on her behalf.
Entity NameMissouri Retina Consultants Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659971620
PECOS PAC ID: 4183031305
Enrollment ID: O20210405001700

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. Mari Ann Keithahn 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
Mari Ann Keithahn, MD
105 N Keene St Ste 102,
Columbia, MO 65201-8131

Ph: (573) 777-8738
Mari Ann Keithahn, MD
105 N Keene St Ste 102,
Columbia, MO 65201-8131

Ph: (573) 777-8738

Reviews and Comments


Ophthalmology Doctors in Columbia, MO

Mohannad Al-samarraie, M.D
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3215 Wingate Ct, Suite 102, Columbia, MO 65201
Phone: 573-882-8920    Fax: 573-884-4868
Vaishnavi Balendiran, MD
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: One Hospital Dr, Columbia, MO 65212
Phone: 573-884-3937    Fax: 573-884-5575
Dr. Jella Angela An, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: One Hospital Drive, Columbia, MO 65212
Phone: 573-882-1506    Fax: 573-884-5575
Maggie A Cardonell, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3215 Wingate Court, Ste 102, Columbia, MO 65201
Phone: 573-882-8920    Fax: 573-884-4868
Dr. Tricia Ann Fernandez, MD
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3215 Wingate Ct, Columbia, MO 65201
Phone: 573-884-3937    Fax: 573-884-4868
Maxwell James Court, MD
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3215 Wingate Ct Ste 102, Columbia, MO 65201
Phone: 573-884-3937    Fax: 573-884-4868
Dr. Kathy J Lentz, MD
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: Mason Eye Institute University Of Missouri, 1 Hospital Drive, Columbia, MO 65212
Phone: 573-882-1027    

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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