Dr Vivien An Nguyen, MD - Medicare Pediatrics in Walnut Creek, CA

Dr Vivien An Nguyen, MD is a medicare enrolled "Pediatrics - Pediatric Gastroenterology" physician in Walnut Creek, California. Her current practice location is 106 La Casa Via Ste 100, Walnut Creek, California. You can reach out to her office (for appointments etc.) via phone at (650) 497-8000.

Dr Vivien An Nguyen is licensed to practice in California (license number A101918) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1154586659.

Contact Information

Dr Vivien An Nguyen, MD
106 La Casa Via Ste 100,
Walnut Creek, CA 94598-3084
(650) 497-8000
Not Available



Physician's Profile

Full NameDr Vivien An Nguyen
GenderFemale
SpecialityPediatrics - Pediatric Gastroenterology
Location106 La Casa Via Ste 100, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1154586659
  • Provider Enumeration Date: 07/23/2008
  • Last Update Date: 12/19/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 7315262532
  • Enrollment ID: I20151012001873

Medical Identifiers

Medical identifiers for Dr Vivien An Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154586659NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics A101918 (California)Secondary
2080P0206XPediatrics - Pediatric Gastroenterology A101918 (California)Primary

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 Vivien An Nguyen allows following entities to bill medicare on her behalf.
Entity NameUcsf Pediatrics Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376614016
PECOS PAC ID: 6204749112
Enrollment ID: O20031106000823

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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 NameLpch Medical Group Div Of Lucile
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417907940
PECOS PAC ID: 0840298543
Enrollment ID: O20061113000232

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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 Vivien An Nguyen 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 Vivien An Nguyen, MD
106 La Casa Via Ste 100,
Walnut Creek, CA 94598-3084

Ph: (650) 497-8000
Dr Vivien An Nguyen, MD
106 La Casa Via Ste 100,
Walnut Creek, CA 94598-3084

Ph: (650) 497-8000

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Pediatrics Doctors in Walnut Creek, CA

Bradley William Zerweck, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: Jmmc 3-east, 1601 Ygnacio Valley Road, Walnut Creek, CA 94598
Phone: 925-941-5270    
Cathy C. Dugan, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    
Dr. Marc S Usatin, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 440 Bridge Rd, Walnut Creek, CA 94595
Phone: 925-209-0100    
Rahul K. Parikh, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    
Dr. Kathleen Smith, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1450 Treat Blvd, Suite 140, Walnut Creek, CA 94597
Phone: 925-296-9770    Fax: 925-296-9092
Dr. Tessie A Okamura, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1450 Treat Blvd, Suite 140, Walnut Creek, CA 94597
Phone: 925-296-9770    Fax: 925-296-9092
David J. Anderson, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    

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