Zachary Keller, MD - Medicare Obstetrics/gynecology in Saint Louis, MO

Zachary Keller, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Saint Louis, Missouri. He went to Saint Louis University School Of Medicine and graduated in 2016 and has 8 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Mercy Clinic East Communities and his current practice location is 621 S New Ballas Rd Ste 499a, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 251-7477.

Zachary Keller is licensed to practice in Missouri (license number 2020023080) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1962865170.

Contact Information

Zachary Keller, MD
621 S New Ballas Rd Ste 499a,
Saint Louis, MO 63141-8260
(314) 251-7477
Not Available

Map and Direction




Physician's Profile

Full NameZachary Keller
GenderMale
SpecialityObstetrics/gynecology
Experience8 Years
Location621 S New Ballas Rd Ste 499a, Saint Louis, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Zachary Keller attended and graduated from Saint Louis University School Of Medicine in 2016
  NPI Data:
  • NPI Number: 1962865170
  • Provider Enumeration Date: 04/04/2016
  • Last Update Date: 08/20/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0840582706
  • Enrollment ID: I20200826002522

Medical Identifiers

Medical identifiers for Zachary Keller such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962865170NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 2020023080 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital St LouisSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic East Communities7214827922499

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. Zachary Keller allows following entities to bill medicare on his behalf.
Entity NameMercy Clinic East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851335228
PECOS PAC ID: 7214827922
Enrollment ID: O20070521000006

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. Zachary Keller 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
Zachary Keller, MD
621 S New Ballas Rd Ste 499a,
Saint Louis, MO 63141-8260

Ph: (314) 251-7477
Zachary Keller, MD
621 S New Ballas Rd Ste 499a,
Saint Louis, MO 63141-8260

Ph: (314) 251-7477

Reviews and Comments


Obstetrics & Gynecology Doctors in Saint Louis, MO

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Anna Rabinov, ANNA RABINOV
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Dr. Kathryn Botney, M.D.
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Dr. Ann Marie S Rockamann, M.D.
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Phone: 314-996-4880    
Dr. Haifaa T. Younis, M.D
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 2315 Dougherty Ferry Rd, Suite 109b, Saint Louis, MO 63122
Phone: 314-965-5553    Fax: 314-590-5972
Dr. Renee M Stein, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 10777 Sunset Office Dr, Suite 200, Saint Louis, MO 63127
Phone: 314-842-4802    Fax: 314-849-8721

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.