Dr Nikolas W Greenson, MD - Medicare Emergency Medicine in Salinas, CA

Dr Nikolas W Greenson, MD is a medicare enrolled "Emergency Medicine" physician in Salinas, California. He went to University Of California, San Diego School Of Medicine and graduated in 2001 and has 23 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Salinas Valley Emergency Medical Group, Inc and his current practice location is 450 E Romie Ln, Salinas, California. You can reach out to his office (for appointments etc.) via phone at (831) 759-1840.

Dr Nikolas W Greenson is licensed to practice in California (license number A79764) 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 1811997737.

Contact Information

Dr Nikolas W Greenson, MD
450 E Romie Ln,
Salinas, CA 93901-4029
(831) 759-1840
Not Available

Map and Direction




Physician's Profile

Full NameDr Nikolas W Greenson
GenderMale
SpecialityEmergency Medicine
Experience23 Years
Location450 E Romie Ln, Salinas, California
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 Nikolas W Greenson attended and graduated from University Of California, San Diego School Of Medicine in 2001
  NPI Data:
  • NPI Number: 1811997737
  • Provider Enumeration Date: 07/21/2005
  • Last Update Date: 02/23/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 8224933650
  • Enrollment ID: I20031126000726

Medical Identifiers

Medical identifiers for Dr Nikolas W Greenson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811997737NPI-NPPES
851586MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A79764 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Salinas Valley Memorial HospitalSalinas, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Salinas Valley Emergency Medical Group, Inc165836434417

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 Nikolas W Greenson allows following entities to bill medicare on his behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
Entity NameSalinas Valley Emergency Medical Group, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174552756
PECOS PAC ID: 1658364344
Enrollment ID: O20040407001000

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 Nikolas W Greenson 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 Nikolas W Greenson, MD
Po Box 2420,
Salinas, CA 93902-2420

Ph: (831) 649-1000
Dr Nikolas W Greenson, MD
450 E Romie Ln,
Salinas, CA 93901-4029

Ph: (831) 759-1840

Reviews and Comments


Emergency Medicine Doctors in Salinas, CA

Dr. Erica Locke, M.D
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 450 E Romie Ln, Salinas, CA 93901
Phone: 831-759-1840    
Cole Klick, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1441 Constitution Blvd, Salinas, CA 93906
Phone: 831-755-6268    
Rakesh Singh, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 450 E Romie Ln, Salinas, CA 93901
Phone: 831-759-1840    Fax: 831-753-6286
Ruth L Selvidge, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1441 Constitution Blvd, Salinas, CA 93906
Phone: 831-647-7611    
Lorena Monarrez, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1441 Constitution Blvd, Salinas, CA 93906
Phone: 831-755-6268    
Dr. Stephen Gregory Meigher, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 450 E Romie Ln, Salinas, CA 93901
Phone: 831-757-4333    
Catherine Dixon Ferguson, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 450 E Romie Ln, Salinas, CA 93901
Phone: 831-757-4333    

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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