Dr Jennifer L Leoniak, DO, MS - Medicare Internal Medicine in Turlock, CA

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Dr Jennifer L Leoniak, DO, MS is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Turlock, California. She went to New York College Of Osteo Medicine Of New York Institute Of Technology and graduated in 2009 and has 16 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Golden Valley Health Centers and her current practice location is 920 Delbon Ave, Turlock, California. You can reach out to her office (for appointments etc.) via phone at (209) 208-0923.

Dr Jennifer L Leoniak is licensed to practice in California (license number 13410) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1588808703.

Contact Information

Dr Jennifer L Leoniak, DO, MS
920 Delbon Ave,
Turlock, CA 95382-2019
(209) 208-0923
(097) 484-8502

Map and Direction




Physician's Profile

Full NameDr Jennifer L Leoniak
GenderFemale
SpecialityInternal Medicine
Experience16 Years
Location920 Delbon Ave, Turlock, California
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jennifer L Leoniak attended and graduated from New York College Of Osteo Medicine Of New York Institute Of Technology in 2009
  NPI Data:
  • NPI Number: 1588808703
  • Provider Enumeration Date: 05/01/2009
  • Last Update Date: 03/27/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0941420939
  • Enrollment ID: I20140924002607

Medical Identifiers

Medical identifiers for Dr Jennifer L Leoniak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588808703NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 13410 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Doctors Medical CenterModesto, CAHospital
Emanuel Medical CenterTurlock, CAHospital

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 Jennifer L Leoniak allows following entities to bill medicare on her behalf.
Entity NameGolden Valley Health Centers
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356445753
PECOS PAC ID: 4183527187
Enrollment ID: O20040128000641
Entity NameSutter Valley Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669846986
PECOS PAC ID: 9830094515
Enrollment ID: O20090311000335
Entity NameJennifer Leoniak Do Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235510710
PECOS PAC ID: 3779898606
Enrollment ID: O20150820011398

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 Jennifer L Leoniak 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 Jennifer L Leoniak, DO, MS
Po Box 4978,
Modesto, CA 95352-4978

Ph: (209) 208-0923		Dr Jennifer L Leoniak, DO, MS
920 Delbon Ave,
Turlock, CA 95382-2019

Ph: (209) 208-0923

Reviews and Comments


Internal Medicine Doctors in Turlock, CA

Dr. Kian Kaveh, D.O.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3650 Geer Rd, Ste A, Turlock, CA 95382
Phone: 209-575-4575    Fax: 209-575-4598
Dr. Arvind Kaur Behl, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 825 Delbon Ave,, Turlock, CA 95203
Phone: 916-212-2575    
Preetinder Singh, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 825 Delbon Ave, Turlock, CA 95382
Phone: 209-576-3525    Fax: 209-576-3544
Nirbhai Singh Hundal, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1516 Colorado Ave, Turlock, CA 95380
Phone: 209-668-5454    
Dr. Alexander Ronald Evens, D.O.
Infectious Disease
Medicare: May Accept Medicare Assignments
Practice Location: 1199 Delbon Ave, Suite 5, Turlock, CA 95382
Phone: 209-656-0183    Fax: 209-656-0199
Sharanjit Singh, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 825 Delbon Ave, Turlock, CA 95382
Phone: 209-576-3525    Fax: 209-576-3544
Dr. Gholamreza Vafadouste, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2141 Colorado Ave, Turlock, CA 95382
Phone: 209-575-4575    Fax: 209-575-4598

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.