Ms Margaret Keane Miller, NP - Medicare Nurse Practitioner in Greenwich, CT

  1. Home
  2. Nurse Practitioner
  3. CT
  4. Greenwich
Ms Margaret Keane Miller, NP is a medicare enrolled "Nurse Practitioner - Psychiatric/mental Health" in Greenwich, Connecticut. Her current practice location is 151 Greenwich Ave Apt 306, Greenwich, Connecticut. You can reach out to her office (for appointments etc.) via phone at (888) 334-2500.

Ms Margaret Keane Miller is licensed to practice in Connecticut (license number 12318) 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 1477113561.

Contact Information

Ms Margaret Keane Miller, NP
151 Greenwich Ave Apt 306,
Greenwich, CT 06830-6570
(888) 334-2500
(475) 303-3055

Map and Direction




Provider's Profile

Full NameMs Margaret Keane Miller
GenderFemale
SpecialityNurse Practitioner - Psychiatric/mental Health
Location151 Greenwich Ave Apt 306, Greenwich, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1477113561
  • Provider Enumeration Date: 06/19/2019
  • Last Update Date: 04/25/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5294173399
  • Enrollment ID: I20240409002960

Medical Identifiers

Medical identifiers for Ms Margaret Keane Miller such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477113561NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LP0808XNurse Practitioner - Psychiatric/mental Health 402667 (New York)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health 12318 (Connecticut)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. Ms Margaret Keane Miller allows following entities to bill medicare on her behalf.
Entity NameHartford Healthcare Medical Group Specialists Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023584216
PECOS PAC ID: 3173866241
Enrollment ID: O20190514001441

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. Ms Margaret Keane Miller 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
Ms Margaret Keane Miller, NP
151 Greenwich Ave Apt 306,
Greenwich, CT 06830-6570

Ph: (888) 334-2500		Ms Margaret Keane Miller, NP
151 Greenwich Ave Apt 306,
Greenwich, CT 06830-6570

Ph: (888) 334-2500

Reviews and Comments


Nurse Practitioner Nurses in Greenwich, CT

Alyssa Lodato, FNP-C
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 7 Ponderosa Dr, Greenwich, CT 06830
Phone: 203-253-2587    
Taylor Pecora-saipe, RN, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 500 W Putnam Ave, Greenwich, CT 06830
Phone: 877-925-3637    
Suma Gupta, APRN
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 77 Lafayette Pl, Greenwich, CT 06830
Phone: 203-863-3031    
Dana Barbieri, APRN
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 50 Old Field Point Rd Fl 3, Greenwich, CT 06830
Phone: 203-862-4000    
Christopher Miller, APRN
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 5 Perryridge Rd, Greenwich, CT 06830
Phone: 203-863-3000    
Theresa Darnow, APRN
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 5 Perryridge Rd, Greenwich, CT 06830
Phone: 203-863-3724    Fax: 203-863-4520
Lois Steckler, APRN
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 5 Perryridge Rd, Greenwich, CT 06830
Phone: 203-863-3513    

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.