Dwight W Guan, MD - Family Medicine in Upland, CA

Dwight W Guan, MD is a Family Medicine physician based in Upland, California. Dwight W Guan is licensed to practice in California (license number G59004) and his current practice location is 999 San Bernardino Rd, Upland, California. He can be reached at his office (for appointments etc.) via phone at (909) 985-2811.

NPI number for Dwight W Guan is 1184644676 and his current mailing address is Po Box 4419, Woodland Hills, California. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1184644676.

Contact Information

Dwight W Guan, MD
999 San Bernardino Rd,
Upland, CA 91786-4920
(909) 985-2811
(818) 587-2493

Map and Direction




Physician's Profile

Full NameDwight W Guan
GenderMale
SpecialityFamily Medicine
Location999 San Bernardino Rd, Upland, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1184644676
  • Provider Enumeration Date: 07/20/2006
  • Last Update Date: 07/08/2007

Medical Identifiers

Medical identifiers for Dwight W Guan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184644676NPI-NPPES
00G590040MedicaidCA
00G590040OtherCABLUE SHIELD
P00247098OtherCARAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine G59004 (California)Primary
207Q00000XFamily Medicine G59004 (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. Dwight W Guan is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dwight W Guan, MD
Po Box 4419,
Woodland Hills, CA 91365-4419

Ph: (818) 340-9988
Dwight W Guan, MD
999 San Bernardino Rd,
Upland, CA 91786-4920

Ph: (909) 985-2811

Reviews and Comments


Family Medicine Doctors in Upland, CA

Louis Brenner, M.D.
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Practice Location: 1113 Alta Ave, Suite 110, Upland, CA 91786
Phone: 909-949-8000    Fax: 909-920-1111
Dr. Dauod Ghafari, MD
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Practice Location: 1533 W 7th St, Apt 115, Upland, CA 91786
Phone: 703-946-8532    
Sandar Win, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 811 E 11th St Ste 205, Upland, CA 91786
Phone: 909-931-5106    Fax: 909-931-5029
Nehal A. Tawansy, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 974 W Foothill Blvd, Upland, CA 91786
Phone: 909-981-2273    
Asha Nayak Ubhayakar, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1157 West 22nd Street, Upland, CA 91784
Phone: 909-981-2781    
Irene Kae Enzensperger, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1060 E Foothill Blvd Ste 202, Upland, CA 91786
Phone: 909-949-0220    Fax: 909-949-0309
Michael Anthony Benavidez, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 984 W Foothill Blvd, Upland, CA 91786
Phone: 909-373-8222    Fax: 909-373-8226

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).

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