Gregory David Middleton, MD - Medicare Rheumatology in La Jolla, CA

Gregory David Middleton, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in La Jolla, California. He went to Boston University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Rheumatology. He is a member of the group practice Regents Of The University Of California and his current practice location is 9350 Campus Point Dr, La Jolla, California. You can reach out to his office (for appointments etc.) via phone at (858) 657-8200.

Gregory David Middleton is licensed to practice in California (license number C54037) 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 1104891290.

Contact Information

Gregory David Middleton, MD
9350 Campus Point Dr,
La Jolla, CA 92037-1300
(858) 657-8200
(858) 657-8235

Map and Direction




Physician's Profile

Full NameGregory David Middleton
GenderMale
SpecialityRheumatology
Experience35 Years
Location9350 Campus Point Dr, La Jolla, 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:
  • Gregory David Middleton attended and graduated from Boston University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1104891290
  • Provider Enumeration Date: 02/22/2006
  • Last Update Date: 03/28/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 6305880774
  • Enrollment ID: I20100520000900

Medical Identifiers

Medical identifiers for Gregory David Middleton such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104891290NPI-NPPES
2018674MedicaidNV

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology 9639 (Nevada)Secondary
207RR0500XInternal Medicine - Rheumatology C54037 (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 California35774767611692

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. Gregory David Middleton 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: 1376646869
PECOS PAC ID: 3577476761
Enrollment ID: O20031112000695
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225130677
PECOS PAC ID: 3577476761
Enrollment ID: O20031209000783

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. Gregory David Middleton 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
Gregory David Middleton, MD
9350 Campus Point Dr,
La Jolla, CA 92037-1300

Ph: (858) 657-8200
Gregory David Middleton, MD
9350 Campus Point Dr,
La Jolla, CA 92037-1300

Ph: (858) 657-8200

Reviews and Comments


Internal Medicine Doctors in La Jolla, CA

Dr. John Sturdivant Andrews, MD
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Practice Location: 1223 Via Barranca, La Jolla, CA 92037
Phone: 858-775-1976    
Dr. Mark C Adrian, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 9850 Genesee Ave, Suite 355, La Jolla, CA 92037
Phone: 858-202-0011    
Dr. Erminia M. Guarneri, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-3330    Fax: 858-784-5933
Dr. Eric Hong, M.D.
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 9834 Genesee Ave, Suite 300, La Jolla, CA 92037
Phone: 858-824-2900    Fax: 858-824-2910
Katrina Deleon, MD
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Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-6158    
Abhishek Gadre, MD
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 9300 Campus Point Dr, La Jolla, CA 92037
Phone: 858-657-7118    
Kamran Hussain Imam, MD
Rheumatology
Medicare: Accepting Medicare Assignments
Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-6158    

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.

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