Lester Bowser, MD - Medicare Gastroenterology in Baltimore, MD

Lester Bowser, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Baltimore, Maryland. He went to University Of Pittsburgh School Of Medicine and graduated in 1994 and has 30 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Medstar Medical Group Ii Llc and his current practice location is 1838 Greene Tree Rd, Ste 400, Baltimore, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 602-7782.

Lester Bowser is licensed to practice in Maryland (license number D0052005) 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 1043206873.

Contact Information

Lester Bowser, MD
1838 Greene Tree Rd, Ste 400,
Baltimore, MD 21208-6391
(410) 602-7782
(410) 602-2438

Map and Direction




Physician's Profile

Full NameLester Bowser
GenderMale
SpecialityGastroenterology
Experience30 Years
Location1838 Greene Tree Rd, Baltimore, 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:
  • Lester Bowser attended and graduated from University Of Pittsburgh School Of Medicine in 1994
  NPI Data:
  • NPI Number: 1043206873
  • Provider Enumeration Date: 09/27/2005
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3274569736
  • Enrollment ID: I20050715000347

Medical Identifiers

Medical identifiers for Lester Bowser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043206873NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology D0052005 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Good Samaritan HospitalBaltimore, MDHospital
Medstar Union Memorial HospitalBaltimore, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Medstar Medical Group Ii Llc05474138251776

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. Lester Bowser allows following entities to bill medicare on his behalf.
Entity NameMedstar Medical Group Ii Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184046187
PECOS PAC ID: 0547413825
Enrollment ID: O20130117000347
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States,inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1942546486
PECOS PAC ID: 3779495858
Enrollment ID: O20141111002041

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. Lester Bowser 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
Lester Bowser, MD
1838 Greene Tree Rd, Ste 400,
Baltimore, MD 21208-6391

Ph: (410) 602-7782
Lester Bowser, MD
1838 Greene Tree Rd, Ste 400,
Baltimore, MD 21208-6391

Ph: (410) 602-7782

Reviews and Comments


Internal Medicine Doctors in Baltimore, MD

Dr. Leonard Anang Sowah, M.D.
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Phone: 410-706-4619    Fax: 410-706-2062
Dr. Bhavandeep Singh Bajaj, M.D.
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Phone: 410-469-5544    Fax: 410-585-2867
Dr. Susrutha Kotwal, MD
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Practice Location: 4940 Eastern Ave, Mfl Bldg, West Tower, 6th Floor, Baltimore, MD 21224
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Dr. Mitesh G Trambadia, M.D.
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Practice Location: 6701 N Charles St Ste 5218, Baltimore, MD 21204
Phone: 443-849-3786    
Ronak K Patel, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 201 E University Pkwy, Baltimore, MD 21218
Phone: 410-554-2000    

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.