Collins P Sein, MD - Medicare Internal Medicine in Waldorf, MD

Collins P Sein, MD is a medicare enrolled "Internal Medicine" physician in Waldorf, Maryland. He graduated from medical school in 1979 and has 45 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Medstar Medical Group - Southern Maryland Llc and his current practice location is 3460 Old Washington Rd, Suite 203a, Waldorf, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 934-8811.

Collins P Sein is licensed to practice in Maryland (license number D0046979) 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 1699769554.

Contact Information

Collins P Sein, MD
3460 Old Washington Rd, Suite 203a,
Waldorf, MD 20602-3240
(301) 934-8811
(301) 934-9321

Map and Direction




Physician's Profile

Full NameCollins P Sein
GenderMale
SpecialityInternal Medicine
Experience45 Years
Location3460 Old Washington Rd, Waldorf, Maryland
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:
  • Collins P Sein graduated from medical school in 1979
  NPI Data:
  • NPI Number: 1699769554
  • Provider Enumeration Date: 09/07/2005
  • Last Update Date: 04/05/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 2769678002
  • Enrollment ID: I20101129000224

Medical Identifiers

Medical identifiers for Collins P Sein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1699769554NPI-NPPES
F2470001OtherDCBLUE CROSS
293041OtherMDMAMSI, ALLIANCE
431203100MedicaidMD
KAF9SOOtherMDBLUE CROSS
110237779OtherMDRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D0046979 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
HomecallEaston, MDHome health agency
Medstar Health Vna, IncCalverton, MDHome health agency
University Of Md Charles Regional Medical CenterLa plata, MDHospital

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. Collins P Sein allows following entities to bill medicare on his behalf.
Entity NameSouthern Maryland Primary Care, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831386630
PECOS PAC ID: 9335321694
Enrollment ID: O20110308000125
Entity NameMedstar Medical Group - Southern Maryland Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831592211
PECOS PAC ID: 1355667056
Enrollment ID: O20150223001281

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. Collins P Sein 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
Collins P Sein, MD
Po Box 1558,
Waldorf, MD 20604-1558

Ph: (301) 638-9670
Collins P Sein, MD
3460 Old Washington Rd, Suite 203a,
Waldorf, MD 20602-3240

Ph: (301) 934-8811

Reviews and Comments


Internal Medicine Doctors in Waldorf, MD

Dr. Sailaja Nandipati,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3500 Old Washington Rd, Suite 202, Waldorf, MD 20602
Phone: 301-843-2223    Fax: 301-843-2355
Dr. Zafar Abulhasan Ansari, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7 Post Office Rd Ste E, Waldorf, MD 20602
Phone: 301-396-4800    
Ms. Tulani Washington Plaskett, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 12070 Old Line Ctr Ste 303, Waldorf, MD 20602
Phone: 301-645-5100    
Firas Al Sammarrai, M.B.CH.B.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10 Saint Patricks Dr, Waldorf, MD 20603
Phone: 301-373-7900    Fax: 301-373-6900
Dr. Alex Ryzhikov, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10 Saint Patricks Dr, Waldorf, MD 20603
Phone: 301-705-7870    Fax: 301-705-7628
Dr. Betty Siu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3510 Old Washington Rd, Suite #100, Waldorf, MD 20602
Phone: 301-609-5200    Fax: 301-609-5220
Dr. Lorenzo Childress Iii, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2855 Crain Hwy, Waldorf, MD 20601
Phone: 240-427-1926    Fax: 240-427-1927

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.