Dr Gregory Joseph Weissler Ii, MD - Medicare Pediatrics in Fenton, MO

Dr Gregory Joseph Weissler Ii, MD is a medicare enrolled "Pediatrics" physician in Fenton, Missouri. His current practice location is 1345 Smizer Mill Rd Ste 1200, Fenton, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 496-5021.

Dr Gregory Joseph Weissler Ii is licensed to practice in Missouri (license number 2023013879) 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 1861029514.

Contact Information

Dr Gregory Joseph Weissler Ii, MD
1345 Smizer Mill Rd Ste 1200,
Fenton, MO 63026-7305
(636) 496-5021
Not Available

Map and Direction




Physician's Profile

Full NameDr Gregory Joseph Weissler Ii
GenderMale
SpecialityPediatrics
Location1345 Smizer Mill Rd Ste 1200, Fenton, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1861029514
  • Provider Enumeration Date: 03/24/2020
  • Last Update Date: 09/25/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2769807346
  • Enrollment ID: I20200729002760

Medical Identifiers

Medical identifiers for Dr Gregory Joseph Weissler Ii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861029514NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics 2023013879 (Missouri)Primary

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 Gregory Joseph Weissler Ii 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 Gregory Joseph Weissler Ii, MD
Po Box 955534,
Saint Louis, MO 63195-5534

Ph: () -
Dr Gregory Joseph Weissler Ii, MD
1345 Smizer Mill Rd Ste 1200,
Fenton, MO 63026-7305

Ph: (636) 496-5021

Reviews and Comments


Pediatrics Doctors in Fenton, MO

Lori Hugg, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 1345 Smizer Mill Rd, Fenton, MO 63026
Phone: 636-496-5021    
Joseph Rudolph, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 1011 Bowles Ave, Suite 300, Fenton, MO 63026
Phone: 314-496-5000    Fax: 314-496-5015
Dr. Lauren Elizabeth Jones, DO
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 714 Gravois Rd, Ste 200, Fenton, MO 63026
Phone: 636-345-5437    Fax: 636-349-6663
Dr. Sue E Jagler, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 714 Gravois Rd, Ste 200, Fenton, MO 63026
Phone: 636-349-5437    Fax: 636-349-6663
Dr. Andrew L Karanas, MD
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 10 Bowles Ave, Fenton, MO 63026
Phone: 636-496-2502    
Dr. Stephen E. Thierauf, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1203 Smizer Mill Rd, Ste 108, Fenton, MO 63026
Phone: 636-717-1340    Fax: 636-717-1344
Dr. Isabel Fernandez-holtzman, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 714 Gravois Rd, Ste 200, Fenton, MO 63026
Phone: 636-349-5437    Fax: 636-349-6663

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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