William T Derosa, DO - Medicare Medical Oncology in Morristown, NJ

William T Derosa, DO is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Morristown, New Jersey. He went to At Still University Of Health Sciences, College Of Osteo Med, Kirksville and graduated in 1980 and has 44 years of diverse experience with area of expertise as Medical Oncology. He is a member of the group practice Summit Medical Group Pa and his current practice location is 95 Madison Ave, Morristown, New Jersey. You can reach out to his office (for appointments etc.) via phone at (973) 538-5210.

William T Derosa is licensed to practice in New Jersey (license number 25MB03927200) 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 1902894991.

Contact Information

William T Derosa, DO
95 Madison Ave,
Morristown, NJ 07960-6092
(973) 538-5210
(973) 644-9657

Map and Direction




Physician's Profile

Full NameWilliam T Derosa
GenderMale
SpecialityMedical Oncology
Experience44 Years
Location95 Madison Ave, Morristown, New Jersey
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:
  • William T Derosa attended and graduated from At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 1980
  NPI Data:
  • NPI Number: 1902894991
  • Provider Enumeration Date: 10/12/2005
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3072508860
  • Enrollment ID: I20101018000124

Medical Identifiers

Medical identifiers for William T Derosa such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902894991NPI-NPPES
1092502MedicaidNJ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 25MB03927200 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Morristown Medical CenterMorristown, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Summit Medical Group Pa53956422761247

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. William T Derosa allows following entities to bill medicare on his behalf.
Entity NameSummit Medical Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942254347
PECOS PAC ID: 5395642276
Enrollment ID: O20031218000011
Entity NameRegional Cancer Care Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801850243
PECOS PAC ID: 5294710091
Enrollment ID: O20040623001494

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. William T Derosa 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
William T Derosa, DO
95 Madison Ave,
Morristown, NJ 07960-6092

Ph: (973) 538-5210
William T Derosa, DO
95 Madison Ave,
Morristown, NJ 07960-6092

Ph: (973) 538-5210

Reviews and Comments


Internal Medicine Doctors in Morristown, NJ

Richard I Watson, MD
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Practice Location: 435 South St, Ste 100, Morristown, NJ 07960
Phone: 973-267-3944    Fax: 973-455-0399
Donna Astiz, MD
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Practice Location: 100 Madison Ave, Morristown, NJ 07960
Phone: 973-971-5595    
Carolina Cabral, M.D.
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Phone: 973-971-5000    
Dr. Ahsan Mahmood Kazmi, M.D.
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Practice Location: 55 Madison Ave, Morristown, NJ 07960
Phone: 973-867-6565    
Jeffrey G Schwartz, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 435 South St, Suite 100, Morristown, NJ 07960
Phone: 973-267-3944    Fax: 973-455-0399
Christine Gerges, DO
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 100 Madison Ave, Morristown, NJ 07960
Phone: 973-971-4287    
Aisha Masood, M.D.
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 100 Madison Avenue, Carol G Simon Cancer Center- 2nd Floor, Morristown, NJ 07960
Phone: 973-971-7960    Fax: 973-898-1640

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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