Sidney Spragins Rehn, MD - Medicare Pediatric Medicine in Boston, MA

  1. Home
  2. Pediatrics
  3. MA
  4. Boston
Sidney Spragins Rehn, MD is a medicare enrolled "Pediatrics" physician in Boston, Massachusetts. She graduated from medical school in 2021 and has 5 years of diverse experience with area of expertise as Pediatric Medicine. Her current practice location is 75 Francis St, Boston, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 732-5500.

Sidney Spragins Rehn is licensed to practice in Massachusetts (license number 1022467) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1023756616.

Contact Information

Sidney Spragins Rehn, MD
75 Francis St,
Boston, MA 02115-6110
(617) 732-5500
Not Available

Map and Direction




Physician's Profile

Full NameSidney Spragins Rehn
GenderFemale
SpecialityPediatric Medicine
Experience5 Years
Location75 Francis St, Boston, Massachusetts
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Sidney Spragins Rehn graduated from medical school in 2021
  NPI Data:
  • NPI Number: 1023756616
  • Provider Enumeration Date: 05/24/2022
  • Last Update Date: 03/28/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6507331824
  • Enrollment ID: I20260404000028

Medical Identifiers

Medical identifiers for Sidney Spragins Rehn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023756616NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics 1022467 (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. Sidney Spragins Rehn allows following entities to bill medicare on her behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameMass General Brigham Medical Group Suburban Massachusetts Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538191218
PECOS PAC ID: 0244133494
Enrollment ID: O20040127001012
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351
Entity NameBrigham & Womens Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033535497
PECOS PAC ID: 3870405988
Enrollment ID: O20150107001260

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. Sidney Spragins Rehn 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
Sidney Spragins Rehn, MD
75 Francis St,
Boston, MA 02115-6110

Ph: (617) 732-5500		Sidney Spragins Rehn, MD
75 Francis St,
Boston, MA 02115-6110

Ph: (617) 732-5500

Reviews and Comments


Pediatrics Doctors in Boston, MA

Puja Banka, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 300 Longwood Ave, Bader 203, Boston, MA 02115
Phone: 617-355-6363    
Angela M. Jacques, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: Massachusetts General Hospital, 55 Fruit St., Boston, MA 02114
Phone: 617-726-2066    
Dr. Elizabeth S Taglauer, M.D., PH.D.
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 300 Longwood Ave, Boston, MA 02115
Phone: 617-355-6000    
Cailyn Hereen Rood, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 300 Longwood Ave, Boston, MA 02115
Phone: 617-355-6000    
Dr. Alon Peltz, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 300 Longwood Ave, Boston, MA 02115
Phone: 617-355-6000    
Dr. Peter J. Hong, MD, MBI
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 300 Longwood Ave, Boston, MA 02115
Phone: 617-355-6000    
Miki Nishitani, M.D.
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 300 Longwood Ave, Boston, MA 02115
Phone: 617-355-6000    

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.