John S Ferris, MD - Medicare Internal Medicine in Grapevine, TX

John S Ferris, MD is a medicare enrolled "Internal Medicine" physician in Grapevine, Texas. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1976 and has 48 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Access Wellness Resources and his current practice location is 1604 Lancaster Dr, Grapevine, Texas. You can reach out to his office (for appointments etc.) via phone at (817) 481-8661.

John S Ferris is licensed to practice in Texas (license number E6346) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1538257084.

Contact Information

John S Ferris, MD
1604 Lancaster Dr,
Grapevine, TX 76051
(817) 481-8661
(817) 416-8801

Map and Direction




Physician's Profile

Full NameJohn S Ferris
GenderMale
SpecialityInternal Medicine
Experience48 Years
Location1604 Lancaster Dr, Grapevine, Texas
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John S Ferris attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1976
  NPI Data:
  • NPI Number: 1538257084
  • Provider Enumeration Date: 10/10/2006
  • Last Update Date: 06/28/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7810920030
  • Enrollment ID: I20050916000693

Medical Identifiers

Medical identifiers for John S Ferris such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538257084NPI-NPPES
1279085MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine E6346 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Baylor Scott & White Medical Center GrapevineGrapevine, TXHospital

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 S Ferris allows following entities to bill medicare on his behalf.
Entity NamePremier Phc Physician Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538579347
PECOS PAC ID: 5698098812
Enrollment ID: O20150806011422
Entity NameAccess Wellness Resources
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568116291
PECOS PAC ID: 6002296506
Enrollment ID: O20220629003881

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 S Ferris 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 S Ferris, MD
1604 Lancaster Dr,
Grapevine, TX 76051

Ph: (817) 481-8661
John S Ferris, MD
1604 Lancaster Dr,
Grapevine, TX 76051

Ph: (817) 481-8661

Reviews and Comments


Internal Medicine Doctors in Grapevine, TX

Raul A Santos Jr., MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1600 W College St, Suite 680, Grapevine, TX 76051
Phone: 817-912-8400    Fax: 817-912-8410
Tania Purkayastha, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1600 W College St Ste 130, Grapevine, TX 76051
Phone: 214-689-7806    Fax: 214-689-5970
Dr. Vikas Aurora, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1643 Lancaster Dr, 202, Grapevine, TX 76051
Phone: 817-251-9080    Fax: 817-251-9082
Ashley Janae Fagan, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1280 S Main St Ste 100, Grapevine, TX 76051
Phone: 817-310-0898    Fax: 817-310-5524
Dr. Khaliq Abdul Rauf, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1650 W College St, Suite 150, Grapevine, TX 76051
Phone: 817-388-3440    Fax: 817-388-3440
Dr. Amyn Malik, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4100 Heritage Ave Ste 102, Grapevine, TX 76051
Phone: 469-251-0589    Fax: 817-381-3321
Dr. Adaeze Chimeogo Nwosu, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1054 Texan Trl, Suite 300, Grapevine, TX 76051
Phone: 253-682-1710    

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.