William Milton Entwistle, MD - Medicare Family Practice in Merced, CA

William Milton Entwistle, MD is a medicare enrolled "Family Medicine" physician in Merced, California. He graduated from medical school in 2011 and has 13 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Merced Faculty Associates Medical Group Incorporated and his current practice location is 3385 G St Ste A, Merced, California. You can reach out to his office (for appointments etc.) via phone at (097) 253-1222.

William Milton Entwistle is licensed to practice in California (license number A153095) 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 1891174785.

Contact Information

William Milton Entwistle, MD
3385 G St Ste A,
Merced, CA 95340-0980
(097) 253-1222
(209) 725-3128

Map and Direction




Physician's Profile

Full NameWilliam Milton Entwistle
GenderMale
SpecialityFamily Practice
Experience13 Years
Location3385 G St Ste A, Merced, California
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:
  • William Milton Entwistle graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1891174785
  • Provider Enumeration Date: 05/25/2015
  • Last Update Date: 06/19/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0244588200
  • Enrollment ID: I20180807003562

Medical Identifiers

Medical identifiers for William Milton Entwistle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891174785NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A153095 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Home CareMerced, CAHome health agency
Hinds Hospice - FresnoFresno, CAHospice
Mercy Medical CenterMerced, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Merced Faculty Associates Medical Group Incorporated478967811127

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. William Milton Entwistle allows following entities to bill medicare on his behalf.
Entity NameMerced Faculty Associates Medical Group Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285623256
PECOS PAC ID: 4789678111
Enrollment ID: O20040409000199

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. William Milton Entwistle 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
William Milton Entwistle, MD
Po Box 3768,
Merced, CA 95344-3768

Ph: (209) 725-7149
William Milton Entwistle, MD
3385 G St Ste A,
Merced, CA 95340-0980

Ph: (097) 253-1222

Reviews and Comments


Family Medicine Doctors in Merced, CA

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Dr. Kim Marie Hartwig, MD
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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.