John Windsor Esther, MD - Medicare Internal Medicine in Springdale, AR

John Windsor Esther, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Springdale, Arkansas. His current practice location is 3901 Parkway Cir Ste 100, Springdale, Arkansas. You can reach out to his office (for appointments etc.) via phone at (479) 581-7170.

John Windsor Esther is licensed to practice in Arkansas (license number E16209) 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 1174056121.

Contact Information

John Windsor Esther, MD
3901 Parkway Cir Ste 100,
Springdale, AR 72762-5328
(479) 581-7170
(479) 587-1366

Map and Direction




Physician's Profile

Full NameJohn Windsor Esther
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location3901 Parkway Cir Ste 100, Springdale, Arkansas
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1174056121
  • Provider Enumeration Date: 04/06/2017
  • Last Update Date: 01/31/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9234482878
  • Enrollment ID: I20230703001332

Medical Identifiers

Medical identifiers for John Windsor Esther such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174056121NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology E16209 (Arkansas)Primary
207R00000XInternal Medicine 10957053-1205 (Utah)Secondary

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. John Windsor Esther allows following entities to bill medicare on his behalf.
Entity NameHighlands Oncology Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346211323
PECOS PAC ID: 7416976196
Enrollment ID: O20051111000204

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. John Windsor Esther 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
John Windsor Esther, MD
3901 Parkway Cir Ste 100,
Springdale, AR 72762-5328

Ph: (479) 581-7170
John Windsor Esther, MD
3901 Parkway Cir Ste 100,
Springdale, AR 72762-5328

Ph: (479) 581-7170

Reviews and Comments


Internal Medicine Doctors in Springdale, AR

Alshaimaa Hazaa, MD
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 4600 Mercy Ln Ste 140, Springdale, AR 72762
Phone: 479-347-3905    
Trenton Bickel,
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 4600 Mercy Ln Ste 240, Springdale, AR 72762
Phone: 479-338-4400    Fax: 479-347-3808
Dr. Kevin J O'keefe, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Parkway Cir Ste 550, Springdale, AR 72762
Phone: 479-903-4764    Fax: 479-346-1851
John D Moore, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Parkway Cir Ste 550, Springdale, AR 72762
Phone: 479-521-8200    Fax: 479-582-7310
Mikaila Noel Wilson Calcagni, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Parkway Cir, Springdale, AR 72762
Phone: 479-587-1700    Fax: 479-587-1366
Dr. Umbar Ghaffar, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 813 Founders Park Drive, Suite 203, Springdale, AR 72762
Phone: 479-463-2440    Fax: 479-463-2465

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.