Ruth Blash, MD - Medicare Internal Medicine in Fishkill, NY

Ruth Blash, MD is a medicare enrolled "Internal Medicine" physician in Fishkill, New York. She graduated from medical school in 1991 and has 33 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Optum Medical Care Pc and her current practice location is 600 Westage Business Ctr Dr, Fishkill, New York. You can reach out to her office (for appointments etc.) via phone at (845) 231-5600.

Ruth Blash is licensed to practice in New York (license number 200863) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1295849545.

Contact Information

Ruth Blash, MD
600 Westage Business Ctr Dr,
Fishkill, NY 12524-2281
(845) 231-5600
(845) 231-5489

Map and Direction




Physician's Profile

Full NameRuth Blash
GenderFemale
SpecialityInternal Medicine
Experience33 Years
Location600 Westage Business Ctr Dr, Fishkill, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ruth Blash graduated from medical school in 1991
  NPI Data:
  • NPI Number: 1295849545
  • Provider Enumeration Date: 08/17/2006
  • Last Update Date: 03/17/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 0749282580
  • Enrollment ID: I20070208000142

Medical Identifiers

Medical identifiers for Ruth Blash such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295849545NPI-NPPES
02458244MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 200863 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Health Quest Home Care, Inc (certified) ChhaPoughkeepsie, NYHome health agency
Prime Home Health Services, LlcBrooklyn, NYHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Optum Medical Care Pc9931013240961

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. Ruth Blash allows following entities to bill medicare on her behalf.
Entity NameOptum Medical Care Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982643003
PECOS PAC ID: 9931013240
Enrollment ID: O20031119000321

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. Ruth Blash 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
Ruth Blash, MD
110 S Bedford Rd,
Mount Kisco, NY 10549-3446

Ph: (914) 241-1050
Ruth Blash, MD
600 Westage Business Ctr Dr,
Fishkill, NY 12524-2281

Ph: (845) 231-5600

Reviews and Comments


Internal Medicine Doctors in Fishkill, NY

Delia Mihaela Stefan, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 600 Westage Business Ctr Dr, Fishkill, NY 12524
Phone: 845-231-5600    Fax: 845-231-5489
Chithranjan Nath, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 400 Westage Business Ctr Dr Ste 205, Fishkill, NY 12524
Phone: 845-896-0008    
M Saleem Choudhry, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 841 Route 52, Suite 2, Fishkill, NY 12524
Phone: 845-897-4350    Fax: 845-897-2378
Dr. Alandra Tobin, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 600 Westage Business Ctr Dr, Fishkill, NY 12524
Phone: 845-231-5560    Fax: 845-231-5489
Dr. Kathleen Brown Mantaro, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 400 Westage Business Ctr Dr Ste 210, Fishkill, NY 12524
Phone: 845-838-8480    
Imtiaz A Mallick, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 798 Route 9, Fishkill, NY 12524
Phone: 845-896-2204    Fax: 845-896-5173
Dr. Stuart Charles Weinberger, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 600 Westage Business Ctr Dr, Fishkill, NY 12524
Phone: 845-231-5560    Fax: 845-231-5489

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.