Dr Karen Blau, MD - Medicare Internal Medicine in Commack, NY

Dr Karen Blau, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Commack, New York. Her current practice location is 68 Hauppauge Rd, Commack, New York. You can reach out to her office (for appointments etc.) via phone at (631) 715-2000.

Dr Karen Blau is licensed to practice in New York (license number 162686) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1023236569.

Contact Information

Dr Karen Blau, MD
68 Hauppauge Rd,
Commack, NY 11725-4403
(631) 715-2000
Not Available

Map and Direction




Physician's Profile

Full NameDr Karen Blau
GenderFemale
SpecialityInternal Medicine - Geriatric Medicine
Location68 Hauppauge Rd, Commack, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1023236569
  • Provider Enumeration Date: 04/22/2007
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8123150646
  • Enrollment ID: I20100720000280

Medical Identifiers

Medical identifiers for Dr Karen Blau such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023236569NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 162686 (New York)Primary

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 Karen Blau allows following entities to bill medicare on her behalf.
Entity NameThe Rosalind And Joseph Gurwin Jewish Geriatric Center Of Long Island
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669472304
PECOS PAC ID: 4486545654
Enrollment ID: O20040324001512

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 Karen Blau 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 Karen Blau, MD
61 Villanova Ln,
Dix Hills, NY 11746-4843

Ph: (631) 493-0522
Dr Karen Blau, MD
68 Hauppauge Rd,
Commack, NY 11725-4403

Ph: (631) 715-2000

Reviews and Comments


Internal Medicine Doctors in Commack, NY

Elizabeth Adele Sturm, M.D.
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 68 Hauppauge Rd, Commack, NY 11725
Phone: 631-715-2262    
Prabha Pillai, M.D
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 45 Mall Dr, Commack, NY 11725
Phone: 914-376-5555    
Dr. Saadat Ul Aleem, M.D./PH.D.
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 500 Commack Rd Unit 150d, Commack, NY 11725
Phone: 934-223-7123    Fax: 934-223-7118
Asmita Satapathy, M.D
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 777 Larkfield Rd Ste 1, Commack, NY 11725
Phone: 631-635-5100    
Janice Shen,
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 650 Commack Rd, Commack, NY 11725
Phone: 631-623-4258    
Steven M Sugarman, MD
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 650 Commack Rd, Commack, NY 11725
Phone: 646-227-3813    

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.