Mary Helen Riddle, NP - Medicare Nurse Practitioner in Providence, RI

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Mary Helen Riddle, NP is a medicare enrolled "Nurse Practitioner - Family" in Providence, Rhode Island. She graduated from nursing school in 2016 and has 10 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Memorial Clinical Physiology Group, Memorial Medical Consultation Group, Affinity Physicians Llc. and her current practice location is 1 Blackstone Street, 2nd Floor, Providence, Rhode Island. You can reach out to her office (for appointments etc.) via phone at (401) 453-7520.

Mary Helen Riddle is licensed to practice in Rhode Island (license number APRN02535) 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 1952814097.

Contact Information

Mary Helen Riddle, NP
1 Blackstone Street, 2nd Floor,
Providence, RI 02903-2759
(401) 453-7520
(401) 453-7529

Map and Direction




Provider's Profile

Full NameMary Helen Riddle
GenderFemale
SpecialityNurse Practitioner
Experience10 Years
Location1 Blackstone Street, Providence, Rhode Island
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 Helen Riddle graduated from nursing school in 2016
  NPI Data:
  • NPI Number: 1952814097
  • Provider Enumeration Date: 11/12/2017
  • Last Update Date: 03/27/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8628331311
  • Enrollment ID: I20180411000213

Medical Identifiers

Medical identifiers for Mary Helen Riddle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952814097NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LP0808XNurse Practitioner - Psychiatric/mental Health APRN04457 (Rhode Island)Secondary
363LF0000XNurse Practitioner - Family APRN02535 (Rhode Island)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Memorial Clinical Physiology Group367846471613
Memorial Medical Consultation Group6406755081105
Affinity Physicians Llc.0244413391630

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 Helen Riddle allows following entities to bill medicare on her behalf.
Entity NameMontefiore Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063525152
PECOS PAC ID: 3779496021
Enrollment ID: O20031113000235
Entity NameMemorial Medical Consultation Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053382523
PECOS PAC ID: 6406755081
Enrollment ID: O20040102000372
Entity NameMemorial Psychiatry Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689645244
PECOS PAC ID: 2062301476
Enrollment ID: O20040313000161
Entity NameMemorial Hematology Lymphoma Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891766366
PECOS PAC ID: 7113816489
Enrollment ID: O20040313000643
Entity NameMemorial Clinical Physiology Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043281512
PECOS PAC ID: 3678464716
Enrollment ID: O20040320000207
Entity NameMskcc Radiology Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639159692
PECOS PAC ID: 3971494683
Enrollment ID: O20040323000353
Entity NameMskcc Clinical Practice Plan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588789341
PECOS PAC ID: 4981704541
Enrollment ID: O20070711000565

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 Helen Riddle 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 Helen Riddle, NP
Po Box 3677,
Nashua, NH 03061-3677

Ph: (603) 577-7900		Mary Helen Riddle, NP
1 Blackstone Street, 2nd Floor,
Providence, RI 02903-2759

Ph: (401) 453-7520

Reviews and Comments


Nurse Practitioner Nurses in Providence, RI

Mrs. Halina Kuc-mazgaj,
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Practice Location: 164 Summit Ave, The Miriam Hospital, Providence, RI 02906
Phone: 401-793-3902    
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Practice Location: 10 Dorrance St Ste 700, Providence, RI 02903
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Phina A Mayu, NP
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Medicare: May Accept Medicare Assignments
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Phone: 401-274-6339    Fax: 401-453-6290
Beverly Casinelli, APRN
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Medicare: Medicare Enrolled
Practice Location: 765 Allens Ave, Providence, RI 02905
Phone: 401-606-4150    
Kristen Ann Chapian, CNP
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Medicare: Accepting Medicare Assignments
Practice Location: 195 Collyer St Ste 302, Providence, RI 02904
Phone: 401-793-5708    Fax: 401-793-5171
Elizabeth Moore Medbury, APRN
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 830 Chalkstone Ave, Providence, RI 02908
Phone: 401-273-7011    
Abigail Leah Soscia, APRN
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 101 Dudley Street, Wih Neonatology/pediatrics, Providence, RI 02905
Phone: 401-274-1122    Fax: 401-453-7571

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.