Dr Sydney Marie Thayer, MD - Medicare Obstetrics & Gynecology in Saint Louis, MO

Dr Sydney Marie Thayer, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Saint Louis, Missouri. Her current practice location is 4901 Forest Park Ave, Div Obgyn Mfm And Us, Ste 710, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 454-8181.

Dr Sydney Marie Thayer is licensed to practice in Missouri (license number 2021016990) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1427581768.

Contact Information

Dr Sydney Marie Thayer, MD
4901 Forest Park Ave, Div Obgyn Mfm And Us, Ste 710,
Saint Louis, MO 63108-1495
(314) 454-8181
(314) 747-1429



Physician's Profile

Full NameDr Sydney Marie Thayer
GenderFemale
SpecialityObstetrics & Gynecology
Location4901 Forest Park Ave, 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: 1427581768
  • Provider Enumeration Date: 04/04/2017
  • Last Update Date: 04/25/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0648544890
  • Enrollment ID: I20210723001509

Medical Identifiers

Medical identifiers for Dr Sydney Marie Thayer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427581768NPI-NPPES
200097022MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 2021016990 (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. Dr Sydney Marie Thayer allows following entities to bill medicare on her behalf.
Entity NameWashington University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760422265
PECOS PAC ID: 9830008770
Enrollment ID: O20040812001332

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› Verified 8 days ago

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 Sydney Marie Thayer 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 Sydney Marie Thayer, MD
Po Box 60352,
Saint Louis, MO 63160-0352

Ph: (314) 454-8181
Dr Sydney Marie Thayer, MD
4901 Forest Park Ave, Div Obgyn Mfm And Us, Ste 710,
Saint Louis, MO 63108-1495

Ph: (314) 454-8181

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Obstetrics & Gynecology Doctors in Saint Louis, MO

Dr. Patricia Tereese Jimenez, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 4444 Forest Park Ave, Div Ob Reproductive Endocrinology, Ste 3100, Saint Louis, MO 63108
Phone: 314-286-2400    Fax: 314-286-2455
Anna Rabinov, ANNA RABINOV
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone: 314-747-3000    
Shannon Michelle Grabosch, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1031 Bellevue Ave Ste 400, Saint Louis, MO 63117
Phone: 314-781-4772    Fax: 314-645-8771
Dr. Kathryn Botney, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 621 S New Ballas Rd, Suite 4005, Saint Louis, MO 63141
Phone: 314-567-5016    Fax: 314-567-1846
Dr. Ann Marie S Rockamann, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3023 N Ballas Rd Ste 600d, Saint Louis, MO 63131
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

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