Dr Lawrence A Walser, MD - Medicare Pulmonary Disease in Riverhead, NY

Dr Lawrence A Walser, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Riverhead, New York. He went to State University Of New York Downstate Medical Center and graduated in 1979 and has 45 years of diverse experience with area of expertise as Pulmonary Disease. He is a member of the group practice Central Suffolk Hospital and his current practice location is 185 Old Country Rd, Suite 3, Riverhead, New York. You can reach out to his office (for appointments etc.) via phone at (631) 727-2523.

Dr Lawrence A Walser is licensed to practice in New York (license number 149921) 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 1669486023.

Contact Information

Dr Lawrence A Walser, MD
185 Old Country Rd, Suite 3,
Riverhead, NY 11901-2121
(631) 727-2523
(631) 727-7353

Map and Direction




Physician's Profile

Full NameDr Lawrence A Walser
GenderMale
SpecialityPulmonary Disease
Experience45 Years
Location185 Old Country Rd, Riverhead, New York
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 Lawrence A Walser attended and graduated from State University Of New York Downstate Medical Center in 1979
  NPI Data:
  • NPI Number: 1669486023
  • Provider Enumeration Date: 07/28/2006
  • Last Update Date: 06/08/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 5395727291
  • Enrollment ID: I20040612000257

Medical Identifiers

Medical identifiers for Dr Lawrence A Walser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1669486023NPI-NPPES
00828533MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine 149921 (New York)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 149921 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Peconic Bay Medical CenterRiverhead, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Central Suffolk Hospital498150808265

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 Lawrence A Walser allows following entities to bill medicare on his behalf.
Entity NameCentral Suffolk Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043402050
PECOS PAC ID: 4981508082
Enrollment ID: O20031120000840

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 Lawrence A Walser 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 Lawrence A Walser, MD
185 Old Country Rd, Suite 3,
Riverhead, NY 11901-2121

Ph: (631) 727-2523
Dr Lawrence A Walser, MD
185 Old Country Rd, Suite 3,
Riverhead, NY 11901-2121

Ph: (631) 727-2523

Reviews and Comments


Internal Medicine Doctors in Riverhead, NY

Dr. Rameshchandra Dabhi, MD
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Ricardo Juan Monserrate, M.D.
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Dr. Yelda Nouri, M.D.
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Phone: 631-751-3000    Fax: 631-509-6559
Dr. Afzal M Butt,
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Marie-jose Dorval-dorcely, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 300 Center Dr, Riverhead, NY 11901
Phone: 631-852-1800    Fax: 631-852-1807

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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