Calvin Ryan Williams, - Medicare Obstetrics & Gynecology in Oak Ridge, TN

Calvin Ryan Williams, is a medicare enrolled "Obstetrics & Gynecology" physician in Oak Ridge, Tennessee. His current practice location is 988 Oak Ridge Tpke Ste 140, Oak Ridge, Tennessee. You can reach out to his office (for appointments etc.) via phone at (865) 483-7415.

Calvin Ryan Williams is licensed to practice in Tennessee (license number 0000005206) 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 1932664414.

Contact Information

Calvin Ryan Williams,
988 Oak Ridge Tpke Ste 140,
Oak Ridge, TN 37830-6919
(865) 483-7415
Not Available



Physician's Profile

Full NameCalvin Ryan Williams
GenderMale
SpecialityObstetrics & Gynecology
Location988 Oak Ridge Tpke Ste 140, Oak Ridge, Tennessee
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1932664414
  • Provider Enumeration Date: 02/08/2019
  • Last Update Date: 08/09/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0648632455
  • Enrollment ID: I20230810002681

Medical Identifiers

Medical identifiers for Calvin Ryan Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1932664414NPI-NPPES
15885362OtherCAQH PROVIDER ID

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 0000005206 (Tennessee)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. Calvin Ryan Williams allows following entities to bill medicare on his behalf.
Entity NameObstetric & Gyncologic Assocs Of Oak Ridge
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639269822
PECOS PAC ID: 0941377253
Enrollment ID: O20080927000160

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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. Calvin Ryan 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
Calvin Ryan Williams,
300 S Tulane Ave Apt 1203,
Oak Ridge, TN 37830-6772

Ph: (646) 647-0514
Calvin Ryan Williams,
988 Oak Ridge Tpke Ste 140,
Oak Ridge, TN 37830-6919

Ph: (865) 483-7415

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Despite many research advances, ovarian cancer remains lethal in a majority of cases, due to late diagnosis of the disease. In a new study, Dr. Joshua LaBaer of the Biodesign Institute at Arizona State University, along with Arturo Ramirez and Paul Lampe, researchers at the Fred Hutchinson Cancer Research Center in Seattle, used a novel method for identifying biomarkers-proteins in blood that can identify ovarian cancer before symptoms appear.

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Diagnostic tests are critical as up to 60 to 70% of critical clinical decisions are influenced by diagnostic test results. It's of huge importance to the running of any healthcare system. Here at Abbott, we believe that providing clinicians with quick access to diagnostics information and insights can help them make quick clinical decisions around the appropriate treatment for a patient,

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Obstetrics & Gynecology Doctors in Oak Ridge, TN

Dr. Scott W Peters, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 988 Oak Ridge Tpke, Suite 140, Oak Ridge, TN 37830
Phone: 865-483-7415    
Dr. Kathryn J Hayes, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 988 Oak Ridge Tpke, Suite 140, Oak Ridge, TN 37830
Phone: 865-483-7415    Fax: 865-483-7980
Dr. Joseph B Carter, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 988 Oak Ridge Tpke, Suite 140, Oak Ridge, TN 37830
Phone: 865-483-7415    Fax: 865-483-7980
Dr. Charles E Darling, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 200 New York Ave Ste 150, Oak Ridge, TN 37830
Phone: 865-481-0200    Fax: 865-481-3085
Dr. Thomas H Metcalf, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 988 Oak Ridge Tpke, Suite 140, Oak Ridge, TN 37830
Phone: 865-483-7415    Fax: 865-483-7980
Regina Dill,
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 988 Oak Ridge Tpke Ste 140, Oak Ridge, TN 37830
Phone: 865-483-7415    Fax: 865-483-7980
Dr. Lalita Krishnan, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 988 Oak Ridge Tpke Ste 140, Oak Ridge, TN 37830
Phone: 865-483-7415    Fax: 865-483-7980

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