Dr William Lamar Chester, MD - Medicare Anesthesiology in Rockville, MD

Dr William Lamar Chester, MD is a medicare enrolled "Anesthesiology" physician in Rockville, Maryland. He went to University Of Miami, Lm Miller School Of Medicine and graduated in 1982 and has 42 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice First Colonies Anesthesia Associates, Llc and his current practice location is 1901 Research Blvd, 350, Rockville, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 838-9606.

Dr William Lamar Chester is licensed to practice in Maryland (license number D30540) 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 1427003342.

Contact Information

Dr William Lamar Chester, MD
1901 Research Blvd, 350,
Rockville, MD 20850-3164
(301) 838-9606
(301) 838-9029

Map and Direction




Physician's Profile

Full NameDr William Lamar Chester
GenderMale
SpecialityAnesthesiology
Experience42 Years
Location1901 Research Blvd, Rockville, 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:
  • Dr William Lamar Chester attended and graduated from University Of Miami, Lm Miller School Of Medicine in 1982
  NPI Data:
  • NPI Number: 1427003342
  • Provider Enumeration Date: 05/23/2006
  • Last Update Date: 03/04/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 1254312580
  • Enrollment ID: I20040609001265

Medical Identifiers

Medical identifiers for Dr William Lamar Chester such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427003342NPI-NPPES
399011700MedicaidMD
601285800OtherFECA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology D30540 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Healthcare Shady Grove Medical CenterRockville, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
First Colonies Anesthesia Associates, Llc8426039744335

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 William Lamar Chester allows following entities to bill medicare on his behalf.
Entity NameMep Health Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164483558
PECOS PAC ID: 5193610319
Enrollment ID: O20040217000863
Entity NameFirst Colonies Anesthesia Associates, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740218767
PECOS PAC ID: 8426039744
Enrollment ID: O20040607001456
Entity NameEmergency Medicine Associates Pa Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134117393
PECOS PAC ID: 8022914522
Enrollment ID: O20070919000389

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 William Lamar Chester 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 William Lamar Chester, MD
13771 Lambertina Pl,
Rockville, MD 20850-5415

Ph: () -
Dr William Lamar Chester, MD
1901 Research Blvd, 350,
Rockville, MD 20850-3164

Ph: (301) 838-9606

Reviews and Comments


Anesthesiology Doctors in Rockville, MD

Charles Rizzuto, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 14820 Physicians Ln, 242, Rockville, MD 20850
Phone: 301-838-9606    
Thomas F Gambon, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 14820 Physicians Ln, 242, Rockville, MD 20850
Phone: 301-838-9606    Fax: 301-838-9029
Nader E. Soliman, MD
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 14820 Physicians Ln, 242, Rockville, MD 20850
Phone: 301-838-9606    
Clyde W Pray, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 1901 Research Blvd, 350, Rockville, MD 20850
Phone: 301-838-9606    Fax: 301-838-9029
Toni Ann Hawley, M.D.
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 14820 Physicians Ln, 242, Rockville, MD 20850
Phone: 301-838-9606    
John A Tam, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 14820 Physicians Ln, 242, Rockville, MD 20850
Phone: 301-838-9606    
Dr. Jen-wen Chen, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 1901 Research Blvd, 350, Rockville, MD 20850
Phone: 301-838-9606    Fax: 301-838-9029

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.