Ronald Grenko, MD - Medicare Pathology in Lancaster, PA

Ronald Grenko, MD is a medicare enrolled "Pathology - Anatomic Pathology & Clinical Pathology" physician in Lancaster, Pennsylvania. He went to University Of Cincinnati College Of Medicine and graduated in 1985 and has 39 years of diverse experience with area of expertise as Pathology. He is a member of the group practice Lancaster General Hospital and his current practice location is 555 N Duke St, Lancaster, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (717) 544-5511.

Ronald Grenko is licensed to practice in Pennsylvania (license number MD048891L) 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 1861454571.

Contact Information

Ronald Grenko, MD
555 N Duke St,
Lancaster, PA 17602-2250
(717) 544-5511
Not Available

Map and Direction




Physician's Profile

Full NameRonald Grenko
GenderMale
SpecialityPathology
Experience39 Years
Location555 N Duke St, Lancaster, Pennsylvania
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:
  • Ronald Grenko attended and graduated from University Of Cincinnati College Of Medicine in 1985
  NPI Data:
  • NPI Number: 1861454571
  • Provider Enumeration Date: 04/06/2006
  • Last Update Date: 03/30/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 1153332689
  • Enrollment ID: I20060518000092

Medical Identifiers

Medical identifiers for Ronald Grenko such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861454571NPI-NPPES
000000187809OtherPAUNISON
1512074OtherPAGATEWAY
50060185OtherPACAPITAL BLUE CROSS AND KEYSTONE HEALTH PLAN CENTRAL
1527859OtherPAAETNA HMO
20050765OtherPAAMERIHEALTH MERCY
000416656OtherPAHIGHMARK BLUE SHIELD
001394250 0008MedicaidPA
0206056000OtherPAINDEPENDENCE BLUE CROSS
21676OtherPAGEISINGER HEALTH PLAN
4299878OtherPAAETNA NON-HMO
P00351049OtherPARR MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology MD048891L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lancaster General HospitalLancaster, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Lancaster General Hospital1254240039417

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. Ronald Grenko allows following entities to bill medicare on his behalf.
Entity NameLancaster General Hospital
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1265535645
PECOS PAC ID: 1254240039
Enrollment ID: O20040413001177
Entity NameUniversity Of Penn-medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235527342
PECOS PAC ID: 6204730955
Enrollment ID: O20141111000091

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. Ronald Grenko 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
Ronald Grenko, MD
555 N Duke St,
Lancaster, PA 17602-2250

Ph: (717) 544-5511
Ronald Grenko, MD
555 N Duke St,
Lancaster, PA 17602-2250

Ph: (717) 544-5511

Reviews and Comments


Pathology Doctors in Lancaster, PA

Sarah Reynolds Nassau, MD
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Practice Location: 555 N Duke St, Lancaster, PA 17602
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Grace Wheeler Weyant,
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Dr. Shashi Baksh, M.D.
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Medicare: Medicare Enrolled
Practice Location: 2301 Harrisburg Pike, Suite 201, Lancaster, PA 17601
Phone: 717-393-7771    Fax: 717-393-7328
Susan Mary Bator, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 555 N Duke St, Lancaster, PA 17602
Phone: 717-544-5511    
Xingcao Nie, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 555 North Duke St, Lancaster, PA 17602
Phone: 717-544-5511    Fax: 717-544-5138

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.