Mary Kay Ewing, MD - Medicare Anesthesiology in Baltimore, MD

Mary Kay Ewing, MD is a medicare enrolled "Anesthesiology" physician in Baltimore, Maryland. She graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Anesthesiology. She is a member of the group practice Johns Hopkins University and her current practice location is 900 Canton Ave, Anesthesia Department, Baltimore, Maryland. You can reach out to her office (for appointments etc.) via phone at (410) 368-3045.

Mary Kay Ewing is licensed to practice in Maryland (license number D0041059) 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 1609873348.

Contact Information

Mary Kay Ewing, MD
900 Canton Ave, Anesthesia Department,
Baltimore, MD 21229
(410) 368-3045
Not Available

Map and Direction




Physician's Profile

Full NameMary Kay Ewing
GenderFemale
SpecialityAnesthesiology
Experience37 Years
Location900 Canton Ave, 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:
  • Mary Kay Ewing graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1609873348
  • Provider Enumeration Date: 07/07/2005
  • Last Update Date: 07/03/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 6002873577
  • Enrollment ID: I20041216000108

Medical Identifiers

Medical identifiers for Mary Kay Ewing such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609873348NPI-NPPES
765011600MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology D0041059 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Johns Hopkins Bayview Medical CenterBaltimore, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Johns Hopkins University89219031472656

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. Mary Kay Ewing allows following entities to bill medicare on her behalf.
Entity NameJohns Hopkins University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922008549
PECOS PAC ID: 8921903147
Enrollment ID: O20031215000719

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. Mary Kay Ewing 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
Mary Kay Ewing, MD
9910 Franklin Square Dr, Ste 2110,
Baltimore, MD 21236-4902

Ph: (516) 626-6366
Mary Kay Ewing, MD
900 Canton Ave, Anesthesia Department,
Baltimore, MD 21229

Ph: (410) 368-3045

Reviews and Comments


Anesthesiology Doctors in Baltimore, MD

Kathryn Rosenblatt, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1800 Orleans St, Baltimore, MD 21287
Phone: 410-955-7461    Fax: 410-614-7903
Dr. Tiffani Danielle Pittman, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 5601 Loch Raven Blvd, Baltimore, MD 21239
Phone: 443-444-4863    Fax: 443-444-4997
Aaron Sachs, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 22 S Greene St # S11c, University Of Maryland Department Of Anesthesia, Baltimore, MD 21201
Phone: 410-328-1239    
Lynette Mark, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 600 N Wolfe St, Baltimore, MD 21287
Phone: 410-955-6353    
Charles Lin, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 900 Canton Ave, Baltimore, MD 21229
Phone: 410-368-3045    Fax: 410-951-4009
Dr. Jasjit B Atwal, M.D.
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 110 S Paca St, Suite 300 6th Fl, Baltimore, MD 21201
Phone: 410-328-6720    Fax: 410-328-1674
Dr. Gerard Limerick, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 600 N Wolfe Street, Nelson 2-131, Baltimore, MD 21287
Phone: 410-955-1818    Fax: 410-502-0541

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.