Sarah Ray Williams, MD - Medicare Critical Care (intensivists) in Baltimore, MD

Sarah Ray Williams, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in Baltimore, Maryland. She went to University Of South Florida College Of Medicine and graduated in 2015 and has 10 years of diverse experience with area of expertise as Critical Care (intensivists). She is a member of the group practice University Of Maryland Physicians P.a. and her current practice location is 22 S Greene St, Baltimore, Maryland. You can reach out to her office (for appointments etc.) via phone at (410) 328-8141.

Sarah Ray Williams is licensed to practice in Maryland (license number D87902) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1326433145.

Contact Information

Sarah Ray Williams, MD
22 S Greene St,
Baltimore, MD 21201-1590
(410) 328-8141
(410) 328-0177

Map and Direction




Physician's Profile

Full NameSarah Ray Williams
GenderFemale
SpecialityCritical Care (intensivists)
Experience10 Years
Location22 S Greene St, Baltimore, Maryland
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Sarah Ray Williams attended and graduated from University Of South Florida College Of Medicine in 2015
  NPI Data:
  • NPI Number: 1326433145
  • Provider Enumeration Date: 03/30/2015
  • Last Update Date: 08/16/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8325346828
  • Enrollment ID: I20200721000514

Medical Identifiers

Medical identifiers for Sarah Ray Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326433145NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D87902 (Maryland)Secondary
207R00000XInternal Medicine D0087902 (Maryland)Secondary
207RC0200XInternal Medicine - Critical Care Medicine D0087902 (Maryland)Secondary
207RP1001XInternal Medicine - Pulmonary Disease D87902 (Maryland)Secondary
207RP1001XInternal Medicine - Pulmonary Disease D0087902 (Maryland)Secondary
207RC0200XInternal Medicine - Critical Care Medicine D87902 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Maryland Medical CenterBaltimore, MDHospital
University Of Md Medical Center Midtown CampusBaltimore, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of Maryland Physicians P.a.2769394808310

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. Sarah Ray Williams allows following entities to bill medicare on her behalf.
Entity NameUniversity Of Maryland Physicians P.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689623175
PECOS PAC ID: 2769394808
Enrollment ID: O20031105000792
Entity NameSt. Agnes Healthcare, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144250176
PECOS PAC ID: 9830092733
Enrollment ID: O20040128001146

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. Sarah Ray 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
Sarah Ray Williams, MD
Po Box 64442,
Baltimore, MD 21264-4442

Ph: (410) 328-8040
Sarah Ray Williams, MD
22 S Greene St,
Baltimore, MD 21201-1590

Ph: (410) 328-8141

Reviews and Comments


Internal Medicine Doctors in Baltimore, MD

Dr. Leonard Anang Sowah, M.D.
Critical Care Medicine
Medicare: Medicare Enrolled
Practice Location: 22 S Greene St, Baltimore, MD 21201
Phone: 410-706-4619    Fax: 410-706-2062
Dr. Bhavandeep Singh Bajaj, M.D.
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3345 Wilkens Avenue, Suite L10, Baltimore, MD 21229
Phone: 410-644-4444    Fax: 410-644-4484
Dr. Yonas Sisay, M.D.
Critical Care Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 822 Guilford Ave, #100, Baltimore, MD 21202
Phone: 410-385-9672    
Dr. Stephen John Witanowski, MD
Critical Care Medicine
Medicare: Medicare Enrolled
Practice Location: 2700 Quarry Lake Dr, Suite 280, Baltimore, MD 21209
Phone: 410-469-5544    Fax: 410-585-2867
Dr. Susrutha Kotwal, MD
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4940 Eastern Ave, Mfl Bldg, West Tower, 6th Floor, Baltimore, MD 21224
Phone: 410-550-5018    
Dr. Mitesh G Trambadia, M.D.
Critical Care Medicine
Medicare: Medicare Enrolled
Practice Location: 6701 N Charles St Ste 5218, Baltimore, MD 21204
Phone: 443-849-3786    
Ronak K Patel, M.D.
Critical Care Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 201 E University Pkwy, Baltimore, MD 21218
Phone: 410-554-2000    

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.