Dr Stephanie Claudia Greger, MD - Medicare Rheumatology in Ventura, CA

Dr Stephanie Claudia Greger, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in Ventura, California. She went to University Of California, Geffen School Of Medicine and graduated in 2004 and has 20 years of diverse experience with area of expertise as Rheumatology. She is a member of the group practice County Of Ventura and her current practice location is 3291 Loma Vista Rd Bldg 340, Ste 502, Ventura, California. You can reach out to her office (for appointments etc.) via phone at (805) 652-6222.

Dr Stephanie Claudia Greger is licensed to practice in California (license number A102891) 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 1912138132.

Contact Information

Dr Stephanie Claudia Greger, MD
3291 Loma Vista Rd Bldg 340, Ste 502,
Ventura, CA 93003-3099
(805) 652-6222
(805) 652-6221

Map and Direction




Physician's Profile

Full NameDr Stephanie Claudia Greger
GenderFemale
SpecialityRheumatology
Experience20 Years
Location3291 Loma Vista Rd Bldg 340, Ventura, California
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:
  • Dr Stephanie Claudia Greger attended and graduated from University Of California, Geffen School Of Medicine in 2004
  NPI Data:
  • NPI Number: 1912138132
  • Provider Enumeration Date: 08/05/2009
  • Last Update Date: 07/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1456498294
  • Enrollment ID: I20131230001590

Medical Identifiers

Medical identifiers for Dr Stephanie Claudia Greger such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912138132NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology A102891 (California)Primary
207RR0500XInternal Medicine - Rheumatology 245362 (Massachusetts)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ventura County Medical CenterVentura, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Ventura7911810171221

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 Stephanie Claudia Greger allows following entities to bill medicare on her behalf.
Entity NameCounty Of Ventura
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629167457
PECOS PAC ID: 7911810171
Enrollment ID: O20031112000587

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 Stephanie Claudia Greger 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 Stephanie Claudia Greger, MD
2323 Knoll Dr,
Ventura, CA 93003-7307

Ph: (805) 677-5181
Dr Stephanie Claudia Greger, MD
3291 Loma Vista Rd Bldg 340, Ste 502,
Ventura, CA 93003-3099

Ph: (805) 652-6222

Reviews and Comments


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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.