Dr Christopher Ashby Grantham, MD - Medicare Internal Medicine in Bronx, NY

Dr Christopher Ashby Grantham, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in Bronx, New York. He graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Lawrence Medical Associates Pc, Sbh Physicians Pc, Garden State Healthcare Associates Llc and his current practice location is 183rd St. & 3rd Ave., Bronx, New York. You can reach out to his office (for appointments etc.) via phone at (718) 960-6188.

Dr Christopher Ashby Grantham is licensed to practice in New York (license number 170931-1) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1952484149.

Contact Information

Dr Christopher Ashby Grantham, MD
183rd St. & 3rd Ave.,
Bronx, NY 10457-2594
(718) 960-6188
Not Available

Map and Direction




Physician's Profile

Full NameDr Christopher Ashby Grantham
GenderMale
SpecialityInternal Medicine
Experience37 Years
Location183rd St. & 3rd Ave., Bronx, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Christopher Ashby Grantham graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1952484149
  • Provider Enumeration Date: 10/23/2006
  • Last Update Date: 02/04/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 8224131552
  • Enrollment ID: I20070307000282

Medical Identifiers

Medical identifiers for Dr Christopher Ashby Grantham such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952484149NPI-NPPES
170931-1OtherNYLICENCE NUMBER
0246913MedicaidNJ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine 170931-1 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Barnabas HospitalBronx, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Lawrence Medical Associates Pc1759439631191
Sbh Physicians Pc3072798941155
Garden State Healthcare Associates Llc8426190687115

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. Dr Christopher Ashby Grantham allows following entities to bill medicare on his behalf.
Entity NameLawrence Medical Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023257441
PECOS PAC ID: 1759439631
Enrollment ID: O20090504000017
Entity NameWestchester Medical Center Advanced Physician Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912131392
PECOS PAC ID: 3173660776
Enrollment ID: O20091031000042
Entity NameSbh Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740595917
PECOS PAC ID: 3072798941
Enrollment ID: O20110420000217

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. Dr Christopher Ashby Grantham 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
Dr Christopher Ashby Grantham, MD
9 Gramatan Ct,
Bronxville, NY 10708-3015

Ph: (914) 793-3552
Dr Christopher Ashby Grantham, MD
183rd St. & 3rd Ave.,
Bronx, NY 10457-2594

Ph: (718) 960-6188

Reviews and Comments


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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.

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