Alexander Thomas O'brien, PMHNP - Medicare Nurse Practitioner in Chestnut Hill, MA

Alexander Thomas O'brien, PMHNP is a medicare enrolled "Nurse Practitioner - Psychiatric/mental Health" in Chestnut Hill, Massachusetts. His current practice location is 300 South St, Chestnut Hill, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 469-0300.

Alexander Thomas O'brien is licensed to practice in Massachusetts (license number 234518) 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 1598420770.

Contact Information

Alexander Thomas O'brien, PMHNP
300 South St,
Chestnut Hill, MA 02467-3694
(617) 469-0300
Not Available

Map and Direction




Provider's Profile

Full NameAlexander Thomas O'brien
GenderMale
SpecialityNurse Practitioner - Psychiatric/mental Health
Location300 South St, Chestnut Hill, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1598420770
  • Provider Enumeration Date: 11/03/2021
  • Last Update Date: 03/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1355726571
  • Enrollment ID: I20220923000632

Medical Identifiers

Medical identifiers for Alexander Thomas O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598420770NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LP0808XNurse Practitioner - Psychiatric/mental Health 234518 (Massachusetts)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. Alexander Thomas O'brien allows following entities to bill medicare on his behalf.
Entity NameFirst Psychiatric Planners, Inc
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1093714412
PECOS PAC ID: 3476653387
Enrollment ID: O20150114000572

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. Alexander Thomas 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
Alexander Thomas O'brien, PMHNP
300 South St,
Chestnut Hill, MA 02467-3694

Ph: (617) 676-3320
Alexander Thomas O'brien, PMHNP
300 South St,
Chestnut Hill, MA 02467-3694

Ph: (617) 469-0300

Reviews and Comments


Nurse Practitioner Nurses in Chestnut Hill, MA

Mrs. Linda Baier, N.P.
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Medicare: Not Enrolled in Medicare
Practice Location: 850 Boylston St, Suite 402, Chestnut Hill, MA 02467
Phone: 617-732-9300    Fax: 617-732-9355
Ms. Joanne L. Faber, MSN, ANP-BC, JD
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Medicare: Not Enrolled in Medicare
Practice Location: 136 Beverly Road, Chestnut Hill, MA 02467
Phone: 617-469-0522    
Kelly Stamp, PHD, ANP
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Practice Location: 140 Commonwealth Ave, Cushing Hall 307, Chestnut Hill, MA 02467
Phone: 617-552-2119    
Diana Gertsch, RN, BSN, MSN, FNP-BC
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Medicare: Medicare Enrolled
Practice Location: 850 Boylston St, Chestnut Hill, MA 02467
Phone: 617-732-6389    
Teresia Garad, NP-C (PENDINGLICENSE
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Medicare: Medicare Enrolled
Practice Location: 329 Hammond St, Chestnut Hill, MA 02467
Phone: 617-251-1040    
Sarah Nadarajah, MSN, APRN, WHNP-BC
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Medicare: Accepting Medicare Assignments
Practice Location: 200 Boylston St Ste 301, Chestnut Hill, MA 02467
Phone: 617-467-6672    Fax: 617-566-2224
Judith A Tucker, NP
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Medicare: Not Enrolled in Medicare
Practice Location: 291 Independence Dr, Chestnut Hill, MA 02467
Phone: 617-325-2800    Fax: 617-541-7500

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).

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