Dr Gregory Grimberg, MD - Medicare General Surgery in Mason City, IA

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Dr Gregory Grimberg, MD is a medicare enrolled "Surgery" physician in Mason City, Iowa. He went to State University Of New York Downstate Medical Center and graduated in 2014 and has 12 years of diverse experience with area of expertise as General Surgery. He is a member of the group practice North Iowa Mercy Clinics and his current practice location is 250 S Crescent Dr, Mason City, Iowa. You can reach out to his office (for appointments etc.) via phone at (641) 494-5300.

Dr Gregory Grimberg is licensed to practice in Iowa (license number MD-47527) 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 1104245307.

Contact Information

Dr Gregory Grimberg, MD
250 S Crescent Dr,
Mason City, IA 50401-2926
(641) 494-5300
(641) 494-5321

Map and Direction




Physician's Profile

Full NameDr Gregory Grimberg
GenderMale
SpecialityGeneral Surgery
Experience12 Years
Location250 S Crescent Dr, Mason City, Iowa
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 Gregory Grimberg attended and graduated from State University Of New York Downstate Medical Center in 2014
  NPI Data:
  • NPI Number: 1104245307
  • Provider Enumeration Date: 04/15/2014
  • Last Update Date: 08/28/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0446588305
  • Enrollment ID: I20200910002699

Medical Identifiers

Medical identifiers for Dr Gregory Grimberg such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104245307NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery D86982 (Maryland)Secondary
208600000XSurgery MD-47527 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercyone North Iowa Medical CenterMason city, IAHospital
Mitchell County Regional HealthOsage, IAHospital
Floyd County Medical CenterCharles city, IAHospital
Palo Alto County HospitalEmmetsburg, IAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Iowa Mercy Clinics7810809076304

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 Gregory Grimberg allows following entities to bill medicare on his behalf.
Entity NameNorth Iowa Mercy Clinics
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780278242
PECOS PAC ID: 7810809076
Enrollment ID: O20031105000273
Entity NameMason City Clinic PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043254055
PECOS PAC ID: 2860385572
Enrollment ID: O20040205001159

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 Gregory Grimberg 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 Gregory Grimberg, MD
250 S Crescent Dr,
Mason City, IA 50401-2926

Ph: (641) 494-5300		Dr Gregory Grimberg, MD
250 S Crescent Dr,
Mason City, IA 50401-2926

Ph: (641) 494-5300

Reviews and Comments


Surgery Doctors in Mason City, IA

Leslie W Smith, DO
Surgery
Medicare: Medicare Enrolled
Practice Location: 1501 4th St Sw, Mason City, IA 50401
Phone: 641-428-5932    Fax: 641-428-6160
Dr. Erik David Brink, D.O.
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5260    
Matthew W Fabian, D.O.
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5260    Fax: 641-494-5267
Dr. Abdolhossein Emami-ahari, M.D.
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5260    Fax: 641-494-5267
Dr. Jeffrey K Rowe, M.D.
Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5260    Fax: 641-494-5267
Dr. Dan Lee Morehouse, MD RVT
Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 1306 4th St Sw, Mason City, IA 50401
Phone: 641-243-2154    Fax: 641-243-2161
Dr. Harsha R Jayawardena, MD
Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5260    Fax: 641-494-5267

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.