William James Deardorff, - Medicare Geriatric Medicine in San Francisco, CA

William James Deardorff, is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in San Francisco, California. He graduated from medical school in 2017 and has 7 years of diverse experience with area of expertise as Geriatric Medicine. He is a member of the group practice Regents Of The University Of California and his current practice location is 4150 Clement St Bldg 1, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 221-4810.

William James Deardorff is licensed to practice in California (license number A169642) 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 1003348830.

Contact Information

William James Deardorff,
4150 Clement St Bldg 1,
San Francisco, CA 94121-1563
(415) 221-4810
Not Available



Physician's Profile

Full NameWilliam James Deardorff
GenderMale
SpecialityGeriatric Medicine
Experience7 Years
Location4150 Clement St Bldg 1, San Francisco, 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 James Deardorff graduated from medical school in 2017
  NPI Data:
  • NPI Number: 1003348830
  • Provider Enumeration Date: 03/30/2017
  • Last Update Date: 06/28/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 6800209917
  • Enrollment ID: I20210702000764

Medical Identifiers

Medical identifiers for William James Deardorff such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003348830NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine A169642 (California)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ucsf Medical CenterSan francisco, CAHospital
Jewish Home & Rehab Center D/p SnfSan francisco, CANursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of California4284547274563

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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 James Deardorff allows following entities to bill medicare on his behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881763597
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389

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Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897

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Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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A new Tel Aviv University study published in Maternal and Child Nutrition found that infantile Vitamin B1 (thiamine) deficiency severely affected the motor function of preschoolers who were fed faulty formula in the first year of their lives.

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› Verified 3 days ago

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 James Deardorff 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 James Deardorff,
505 Parnassus Ave, 15 Long,
San Francisco, CA 94143

Ph: (415) 502-4900
William James Deardorff,
4150 Clement St Bldg 1,
San Francisco, CA 94121-1563

Ph: (415) 221-4810

News Archive

Communities with active participants demonstrate lower levels of crime, death rates

In a set of papers just published in two leading scholarly journals, LSU sociology professor Matthew Lee reports that both violent crime and all-cause mortality rates are on average substantially lower in communities with a vibrant civic climate.

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A new Tel Aviv University study published in Maternal and Child Nutrition found that infantile Vitamin B1 (thiamine) deficiency severely affected the motor function of preschoolers who were fed faulty formula in the first year of their lives.

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Successful epilepsy surgery can improve brain connectivity similar to patterns seen in people without epilepsy, according to a new study published in the journal Neurosurgery.

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› Verified 3 days ago


Internal Medicine Doctors in San Francisco, CA

Dr. Pratyusha Kishore Narra, MBBS
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3490 California St, San Francisco, CA 94118
Phone: 415-514-6200    Fax: 415-514-6410
Dr. Chelsea Joy Thomsen, M.D., M.S.P.H
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 W Portal Ave, San Francisco, CA 94127
Phone: 415-291-0480    
Christine Soran,
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 1001 Potrero Ave, Bldg 10, 3rd Floor, Ward 13, Ucsf Division Of General Internal Medicine Sfgh, San Francisco, CA 94110
Phone: 415-206-5164    Fax: 415-206-5586
Stephen Norris Cohen, MD
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 40 Ventura Ave, San Francisco, CA 94116
Phone: 415-681-2171    Fax: 415-681-2171
Mauricio Jalife Bucay, M.D
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-750-4994    Fax: 415-750-8156
Dr. Adriana A.t. Martin, M.D., PH.D.
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-514-7288    
Dr. Alexandra Cristina Villasante Fricke, MD
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 655 Montgomery St Ste 810, San Francisco, CA 94111
Phone: 844-847-8216    Fax: 415-520-9150

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