Mark Kotlarewsky, - Medicare Internal Medicine in Washington, DC

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Mark Kotlarewsky, is a medicare enrolled "Internal Medicine" physician in Washington, District Of Columbia. He graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Medstar Medical Group Ii Llc and his current practice location is 110 Irving St Nw, Ste 2a-38e, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 877-4677.

Mark Kotlarewsky is licensed to practice in District Of Columbia (license number MD036355) 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 1154485621.

Contact Information

Mark Kotlarewsky,
110 Irving St Nw, Ste 2a-38e,
Washington, DC 20010-2975
(202) 877-4677
Not Available

Map and Direction




Physician's Profile

Full NameMark Kotlarewsky
GenderMale
SpecialityInternal Medicine
Experience22 Years
Location110 Irving St Nw, Washington, District Of Columbia
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:
  • Mark Kotlarewsky graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1154485621
  • Provider Enumeration Date: 12/20/2006
  • Last Update Date: 04/21/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 2769507425
  • Enrollment ID: I20100917000771

Medical Identifiers

Medical identifiers for Mark Kotlarewsky such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154485621NPI-NPPES
024905300MedicaidDC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD036355 (District Of Columbia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Washington Hospital CenterWashington, DCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Medstar Medical Group Ii Llc05474138251790

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. Mark Kotlarewsky allows following entities to bill medicare on his behalf.
Entity NameWashington Hospital Center Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427090257
PECOS PAC ID: 3577476266
Enrollment ID: O20031110000092
Entity NameUnity Health Care Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093894172
PECOS PAC ID: 3476647264
Enrollment ID: O20071024000456
Entity NameWhc Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700154226
PECOS PAC ID: 6103093513
Enrollment ID: O20120125000252
Entity NameMedstar Medical Group Ii Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184046187
PECOS PAC ID: 0547413825
Enrollment ID: O20130117000415

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. Mark Kotlarewsky 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
Mark Kotlarewsky,
110 Irving St Nw, Ste 2a-38e,
Washington, DC 20010-2975

Ph: (202) 877-4677		Mark Kotlarewsky,
110 Irving St Nw, Ste 2a-38e,
Washington, DC 20010-2975

Ph: (202) 877-4677

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.

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).

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