Caitlin O'brien, MD - Medicare Anesthesiology in Baltimore, MD

Caitlin O'brien, MD is a medicare enrolled "Anesthesiology - Critical Care Medicine" physician in Baltimore, Maryland. Her current practice location is 1800 Orleans St, Baltimore, Maryland. You can reach out to her office (for appointments etc.) via phone at (410) 955-6412.

Caitlin O'brien is licensed to practice in Maryland (license number D79942) 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 1023332087.

Contact Information

Caitlin O'brien, MD
1800 Orleans St,
Baltimore, MD 21287-0010
(410) 955-6412
Not Available



Physician's Profile

Full NameCaitlin O'brien
GenderFemale
SpecialityAnesthesiology - Critical Care Medicine
Location1800 Orleans St, Baltimore, Maryland
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1023332087
  • Provider Enumeration Date: 03/19/2010
  • Last Update Date: 03/17/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 8527339944
  • Enrollment ID: I20170803001838

Medical Identifiers

Medical identifiers for Caitlin O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023332087NPI-NPPES
105156300MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207LC0200XAnesthesiology - Critical Care Medicine D79942 (Maryland)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. Caitlin O'brien 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

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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. Caitlin O'brien 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
Caitlin O'brien, MD
9910 Franklin Square Dr Ste 2110,
Baltimore, MD 21236-4902

Ph: (410) 933-6421
Caitlin O'brien, MD
1800 Orleans St,
Baltimore, MD 21287-0010

Ph: (410) 955-6412

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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    
Dr. Mohamed Ehab Ramadan Mohamed Ramadan, MBBCH, MSC, PHD
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 600 North Wolfe Street, Nelson 2-131, Baltimore, MD 21287
Phone: 410-955-1818    
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

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