Zachary Joel Treat, MD - Medicare Family Medicine in Saint Louis, MO

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Zachary Joel Treat, MD is a medicare enrolled "Family Medicine" physician in Saint Louis, Missouri. His current practice location is 10010 Kennerly Rd, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 525-1328.

Zachary Joel Treat is licensed to practice in Missouri (license number 2020035229) 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 1447743083.

Contact Information

Zachary Joel Treat, MD
10010 Kennerly Rd,
Saint Louis, MO 63128-2106
(314) 525-1328
Not Available

Map and Direction




Physician's Profile

Full NameZachary Joel Treat
GenderMale
SpecialityFamily Medicine
Location10010 Kennerly Rd, Saint Louis, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1447743083
  • Provider Enumeration Date: 06/08/2018
  • Last Update Date: 12/04/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0648525386
  • Enrollment ID: I20210308000707

Medical Identifiers

Medical identifiers for Zachary Joel Treat such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447743083NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 2020035229 (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. Zachary Joel Treat allows following entities to bill medicare on his behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851431738
PECOS PAC ID: 1658276811
Enrollment ID: O20031218000107
Entity NameMercy Clinic Adult Hospitalists - St. Louis, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841235108
PECOS PAC ID: 6002809944
Enrollment ID: O20040406001004
Entity NameMercy Clinic Adult Hospitalists - Washington, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891943429
PECOS PAC ID: 3577630540
Enrollment ID: O20080917000782
Entity NameSt Anthonys Physician Organization Hospitalist Services Lc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407216336
PECOS PAC ID: 5092980656
Enrollment ID: O20111208000771
Entity NameMercy Clinic Adult Hospitalists Jefferson Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083052492
PECOS PAC ID: 8628205598
Enrollment ID: O20131220001798

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 Joel Treat 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 Joel Treat, MD
10010 Kennerly Rd,
Saint Louis, MO 63128-2106

Ph: (314) 525-1328		Zachary Joel Treat, MD
10010 Kennerly Rd,
Saint Louis, MO 63128-2106

Ph: (314) 525-1328

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).

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.