Sigrid Gardner Williams, MD - Medicare Obstetrics & Gynecology in Tucson, AZ

Sigrid Gardner Williams, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Tucson, Arizona. Her current practice location is 655 E River Rd Ste 201, Tucson, Arizona. You can reach out to her office (for appointments etc.) via phone at (520) 258-0585.

Sigrid Gardner Williams is licensed to practice in Arizona (license number 57253) 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 1033485511.

Contact Information

Sigrid Gardner Williams, MD
655 E River Rd Ste 201,
Tucson, AZ 85704-5824
(520) 258-0585
(833) 449-2358

Map and Direction




Physician's Profile

Full NameSigrid Gardner Williams
GenderFemale
SpecialityObstetrics & Gynecology
Location655 E River Rd Ste 201, Tucson, Arizona
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1033485511
  • Provider Enumeration Date: 03/28/2012
  • Last Update Date: 10/03/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6406136605
  • Enrollment ID: I20190513000974

Medical Identifiers

Medical identifiers for Sigrid Gardner Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033485511NPI-NPPES
462098MedicaidAZ
57253OtherAZAZ MEDICAL BOARD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 57253 (Arizona)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. Sigrid Gardner Williams allows following entities to bill medicare on her behalf.
Entity NameGenesis Ob Gyn Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992994214
PECOS PAC ID: 4284724279
Enrollment ID: O20071213000739

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. Sigrid Gardner Williams 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
Sigrid Gardner Williams, MD
Po Box 81064,
Cleveland, OH 44181-0064

Ph: () -
Sigrid Gardner Williams, MD
655 E River Rd Ste 201,
Tucson, AZ 85704-5824

Ph: (520) 258-0585

Reviews and Comments


Obstetrics & Gynecology Doctors in Tucson, AZ

Dr. Teresa Rene Worstell Safer, MD
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Robert Samuelson, MD
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Coleman Wade Davidson Ii, M.D.
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Richard W Langert, MD PC
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Mary Kay Durfee, MD
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Phone: 520-877-3800    Fax: 520-877-3801
Darren Housel, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 10350 E Drexel Rd Ste 260, Tucson, AZ 85747
Phone: 520-324-1727    Fax: 520-324-1700

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.