Dr Jeffrey Williams, MD, PHD - Medicare in Santa Cruz, CA

Dr Jeffrey Williams, MD, PHD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Santa Cruz, California. His current practice location is 1595 Soquel Dr, Ste 411, Santa Cruz, California. You can reach out to his office (for appointments etc.) via phone at (831) 465-7778.

Dr Jeffrey Williams is licensed to practice in California (license number G52869) 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 1942304977.

Contact Information

Dr Jeffrey Williams, MD, PHD
1595 Soquel Dr, Ste 411,
Santa Cruz, CA 95065-1719
(831) 465-7778
(831) 475-0351

Map and Direction




Physician's Profile

Full NameDr Jeffrey Williams
GenderMale
Speciality
Experience Years
Location1595 Soquel Dr, Santa Cruz, 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:
  • Dr Jeffrey Williams attended and graduated from in
  NPI Data:
  • NPI Number: 1942304977
  • Provider Enumeration Date: 09/11/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Dr Jeffrey Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942304977NPI-NPPES
GR0028554OtherCAMEDI-CAL ID NUMBER

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism G52869 (California)Primary

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 Jeffrey Williams 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 Jeffrey Williams, MD, PHD
1595 Soquel Dr, Ste 330,
Santa Cruz, CA 95065-1719

Ph: (831) 465-7761
Dr Jeffrey Williams, MD, PHD
1595 Soquel Dr, Ste 411,
Santa Cruz, CA 95065-1719

Ph: (831) 465-7778

Reviews and Comments


Internal Medicine Doctors in Santa Cruz, CA

Nicole Sudduth, MD
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Phone: 831-458-5670    
Timothy W Allari, MD
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Brent Culver, MD
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Holly B Moore, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 2025 Soquel Ave, Santa Cruz, CA 95062
Phone: 831-458-5610    Fax: 831-423-6410
Pritisheel Banga, DO
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1595 Soquel Dr Ste 411, Santa Cruz, CA 95065
Phone: 831-475-8834    Fax: 831-462-2058
Michael Alexander, MD
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 1669 Dominican Way, Santa Cruz, CA 95065
Phone: 831-475-2220    Fax: 831-475-2221
Dr. James L Poth Jr., MD
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 419 Carbonera Dr, Santa Cruz, CA 95060
Phone: 831-426-0607    Fax: 831-427-1525

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.