Dr Ruhong Ma, DO - Medicare Internal Medicine in San Diego, CA

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Dr Ruhong Ma, DO is a medicare enrolled "Internal Medicine" physician in San Diego, California. He went to Edward Via Col Of Osteo Medicine-virginia Campus and graduated in 2008 and has 17 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Hospitalist Medicine Physicians Of California Inc, Sharp Rees-stealy Medical Group Inc and his current practice location is 4647 Zion Ave, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (619) 528-5435.

Dr Ruhong Ma is licensed to practice in California (license number 20A13891) 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 1063679587.

Contact Information

Dr Ruhong Ma, DO
4647 Zion Ave,
San Diego, CA 92120
(619) 528-5435
Not Available

Map and Direction




Physician's Profile

Full NameDr Ruhong Ma
GenderMale
SpecialityInternal Medicine
Experience17 Years
Location4647 Zion Ave, 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:
  • Dr Ruhong Ma attended and graduated from Edward Via Col Of Osteo Medicine-virginia Campus in 2008
  NPI Data:
  • NPI Number: 1063679587
  • Provider Enumeration Date: 05/21/2008
  • Last Update Date: 08/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9638317928
  • Enrollment ID: I20150722006273

Medical Identifiers

Medical identifiers for Dr Ruhong Ma such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063679587NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine OP61335231 (Washington)Secondary
207R00000XInternal Medicine 20A13891 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sharp Memorial HospitalSan diego, CAHospital
Tri-city Medical CenterOceanside, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hospitalist Medicine Physicians Of California Inc842606202792
Sharp Rees-stealy Medical Group Inc8628972759767

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 Ruhong Ma allows following entities to bill medicare on his behalf.
Entity NameSharp Rees-stealy Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285616177
PECOS PAC ID: 8628972759
Enrollment ID: O20031120000996
Entity NameHospitalist Medicine Physicians Of California Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184663965
PECOS PAC ID: 8426062027
Enrollment ID: O20060202000956
Entity NameTemecula Valley Hospitalist Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265874135
PECOS PAC ID: 8224252630
Enrollment ID: O20140604002038
Entity NameInpatient Specialists Of California Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952792475
PECOS PAC ID: 3476864448
Enrollment ID: O20150617000915

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 Ruhong Ma 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 Ruhong Ma, DO
15847 Bass Ln,
San Diego, CA 92127-6165

Ph: (804) 306-7557		Dr Ruhong Ma, DO
4647 Zion Ave,
San Diego, CA 92120

Ph: (619) 528-5435

Reviews and Comments


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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.