Mark William Lamastro, MD - Medicare Anesthesiology in Port Chester, NY

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Mark William Lamastro, MD is a medicare enrolled "Anesthesiology" physician in Port Chester, New York. He went to New York Medical College and graduated in 1987 and has 37 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Ramapo Anesthesiologists, Pc and his current practice location is 728 King St., Port Chester, New York. You can reach out to his office (for appointments etc.) via phone at (914) 939-8858.

Mark William Lamastro is licensed to practice in New York (license number 185 362 1) 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 1659361004.

Contact Information

Mark William Lamastro, MD
728 King St.,
Port Chester, NY 10573
(914) 939-8858
(914) 939-3814

Map and Direction




Physician's Profile

Full NameMark William Lamastro
GenderMale
SpecialityAnesthesiology
Experience37 Years
Location728 King St., Port Chester, 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:
  • Mark William Lamastro attended and graduated from New York Medical College in 1987
  NPI Data:
  • NPI Number: 1659361004
  • Provider Enumeration Date: 10/26/2005
  • Last Update Date: 09/26/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 8325946551
  • Enrollment ID: I20031226000194

Medical Identifiers

Medical identifiers for Mark William Lamastro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1659361004NPI-NPPES
0007752423OtherNYAETNA US HEALTHCARE PPO
5398370OtherNYGHI
P2742862OtherNYOXFORD
3021392OtherNYAETNA US HEALTHCARE HMO
8K818OtherNYEMPIRE BC BS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 185 362 1 (New York)Primary
207LP2900XAnesthesiology - Pain Medicine 185 362 1 (New York)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph's Medical CenterYonkers, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ramapo Anesthesiologists, Pc347644437373

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 William Lamastro allows following entities to bill medicare on his behalf.
Entity NameRamapo Anesthesiologists, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235151002
PECOS PAC ID: 3476444373
Enrollment ID: O20040322000677

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 William Lamastro 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 William Lamastro, MD
728 King St,
Port Chester, NY 10573

Ph: (914) 939-8858		Mark William Lamastro, MD
728 King St.,
Port Chester, NY 10573

Ph: (914) 939-8858

Reviews and Comments


Anesthesiology Doctors in Port Chester, NY


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.