Dat William Nguyen, MD - Medicare Internal Medicine in La Mesa, CA

Dat William Nguyen, MD is a medicare enrolled "Family Medicine" physician in La Mesa, California. He went to University Of Minnesota Medical School and graduated in 2000 and has 24 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Datnguyen, M.d., Inc. and his current practice location is 5565 Grossmont Center Dr Ste 229, La Mesa, California. You can reach out to his office (for appointments etc.) via phone at (858) 349-3760.

Dat William Nguyen is licensed to practice in California (license number A83262) 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 1386626448.

Contact Information

Dat William Nguyen, MD
5565 Grossmont Center Dr Ste 229,
La Mesa, CA 91942-3026
(858) 349-3760
(619) 262-8964

Map and Direction




Physician's Profile

Full NameDat William Nguyen
GenderMale
SpecialityInternal Medicine
Experience24 Years
Location5565 Grossmont Center Dr Ste 229, La Mesa, 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:
  • Dat William Nguyen attended and graduated from University Of Minnesota Medical School in 2000
  NPI Data:
  • NPI Number: 1386626448
  • Provider Enumeration Date: 11/15/2005
  • Last Update Date: 08/02/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8224018700
  • Enrollment ID: I20040723001097

Medical Identifiers

Medical identifiers for Dat William Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386626448NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A83262 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Paradise Valley HospitalNational city, CAHospital
Uc San Diego Health Hillcrest - Hillcrest Med CtrSan diego, CAHospital
Country Hills Post AcuteEl cajon, CANursing home
Community Care CenterLa mesa, CANursing home
San Diego Post-acute CenterEl cajon, CANursing home
Arroyo Vista Nursing CenterSan diego, CANursing home
The Shores Post-acuteSan diego, CANursing home

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. Dat William Nguyen allows following entities to bill medicare on his behalf.
Entity NameDatnguyen, M.d., Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215977723
PECOS PAC ID: 4587668736
Enrollment ID: O20060831000265
Entity NameCareconnectmd Ca Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366063125
PECOS PAC ID: 5496178055
Enrollment ID: O20200715000596
Entity NameDat William Nguyen Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114671799
PECOS PAC ID: 4486048436
Enrollment ID: O20220308001905

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. Dat William 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
Dat William Nguyen, MD
Po Box 8005,
Rancho Santa Fe, CA 92067-8005

Ph: (858) 349-3760
Dat William Nguyen, MD
5565 Grossmont Center Dr Ste 229,
La Mesa, CA 91942-3026

Ph: (858) 349-3760

Reviews and Comments


Family Medicine Doctors in La Mesa, CA

Dr. Michelle Cao, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8881 Fletcher Pkwy, Suite 105, La Mesa, CA 91942
Phone: 858-499-2600    Fax: 619-462-9625
Dr. Vinh Duc Nguyen, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5525 Grossmont Center Dr, La Mesa, CA 91942
Phone: 858-499-2600    Fax: 619-644-6899
Armdabi Chung, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10862 Calle Verde, La Mesa, CA 91941
Phone: 619-660-1826    
Jungook Devin Shin, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8080 Parkway Dr, La Mesa, CA 91942
Phone: 800-290-5000    Fax: 800-290-5000
Joseph P Aiello, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 8875 La Mesa Blvd, La Mesa, CA 91942
Phone: 619-670-8028    
Ms. Paula Leibham, NP
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5525 Grossmont Center Dr Ste 200, La Mesa, CA 91942
Phone: 619-644-6569    Fax: 619-644-6526
Dr. Joseph Francis Leonard, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5525 Grossmont Center Dr, Suite 200, La Mesa, CA 91942
Phone: 619-644-6500    Fax: 619-644-6526

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.