Alexander Lionel Bullen, MD - Medicare Nephrology in San Diego, CA

Alexander Lionel Bullen, MD is a medicare enrolled "Internal Medicine" physician in San Diego, California. He graduated from medical school in 2008 and has 16 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Regents Of The University Of California and his current practice location is 200 W Arbor Dr, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (619) 543-4619.

Alexander Lionel Bullen is licensed to practice in California (license number A135902) 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 1528328531.

Contact Information

Alexander Lionel Bullen, MD
200 W Arbor Dr,
San Diego, CA 92103-9000
(619) 543-4619
Not Available

Map and Direction




Physician's Profile

Full NameAlexander Lionel Bullen
GenderMale
SpecialityNephrology
Experience16 Years
Location200 W Arbor Dr, San Diego, 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:
  • Alexander Lionel Bullen graduated from medical school in 2008
  NPI Data:
  • NPI Number: 1528328531
  • Provider Enumeration Date: 05/23/2012
  • Last Update Date: 07/09/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 3274881412
  • Enrollment ID: I20180806000904

Medical Identifiers

Medical identifiers for Alexander Lionel Bullen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528328531NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine BP10043178 (Texas)Secondary
207R00000XInternal Medicine A135902 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Uc San Diego Health Hillcrest - Hillcrest Med CtrSan diego, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of California35774767611712

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. Alexander Lionel Bullen 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: 1578672184
PECOS PAC ID: 3577476761
Enrollment ID: O20031211000464

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. Alexander Lionel Bullen 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
Alexander Lionel Bullen, MD
200 W Arbor Dr,
San Diego, CA 92103-1911

Ph: (619) 543-6397
Alexander Lionel Bullen, MD
200 W Arbor Dr,
San Diego, CA 92103-9000

Ph: (619) 543-4619

Reviews and Comments


Internal Medicine Doctors in San Diego, CA

Dr. Ramin Motarjemi, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 200 W Arbor Dr, San Diego, CA 92103
Phone: 858-249-2500    Fax: 858-657-8069
Dr. Shweta Warner, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4647 Zion Ave, San Diego, CA 92120
Phone: 619-221-6258    Fax: 619-221-6012
Dr. Matthew James Roosevelt, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4647 Zion Ave, Department Of Hospital Medicine, San Diego, CA 92120
Phone: 619-952-5091    
Dr. Daniel Joseph Desantis, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: Naval Medical Ctr, 34800 Bob Wilson Dr., San Diego, CA 92134
Phone: 619-532-7935    
Jedidiah Daniel Bell,
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 200 W Arbor Dr, San Diego, CA 92103
Phone: 619-471-0434    
Dr. Umber Dube, MD PHD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 8899 University Center Lane, Suite 350 Mc 0975, San Diego, CA 92122
Phone: 858-657-1675    
Dr. Patricia Vold Pepper, MD, MSC, FACP
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 34800 Bob Wilson Dr, San Diego, CA 92134
Phone: 619-532-7504    Fax: 619-532-7508

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.