Simon Ma, MD, MPH - Medicare Family Medicine in San Leandro, CA

Simon Ma, MD, MPH is a medicare enrolled "Family Medicine - Addiction Medicine" physician in San Leandro, California. His current practice location is 2500 Merced St, San Leandro, California. You can reach out to his office (for appointments etc.) via phone at (510) 454-1000.

Simon Ma is licensed to practice in California (license number 191827) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1811578461.

Contact Information

Simon Ma, MD, MPH
2500 Merced St,
San Leandro, CA 94577-4201
(510) 454-1000
Not Available

Map and Direction




Physician's Profile

Full NameSimon Ma
GenderMale
SpecialityFamily Medicine - Addiction Medicine
Location2500 Merced St, San Leandro, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1811578461
  • Provider Enumeration Date: 04/15/2021
  • Last Update Date: 10/06/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4587191861
  • Enrollment ID: I20241227000592

Medical Identifiers

Medical identifiers for Simon Ma such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811578461NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 191827 (California)Secondary
207QA0401XFamily Medicine - Addiction Medicine 191827 (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. Simon 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
Simon Ma, MD, MPH
2500 Merced St,
San Leandro, CA 94577-4201

Ph: (510) 454-1000
Simon Ma, MD, MPH
2500 Merced St,
San Leandro, CA 94577-4201

Ph: (510) 454-1000

Reviews and Comments


Family Medicine Doctors in San Leandro, CA

Bruce A Robertson, M.D
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Practice Location: 13851 E 14th St, Suite 102, San Leandro, CA 94578
Phone: 510-351-2100    Fax: 510-357-3389
Dr. Douglas D Zhang, M.D.
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Practice Location: 13851 E 14th St, San Leandro, CA 94578
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Miss Somia Mohanty, MD
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Practice Location: 2500 Merced St, San Leandro, CA 94577
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Practice Location: 13847 E 14th St, Suite 110, San Leandro, CA 94578
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Willis L Gelston, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 13851 E 14th St, Suite 102, San Leandro, CA 94578
Phone: 510-351-2100    Fax: 510-357-3389
Dr. Herbert B Weingard, M.D.
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Medicare: Medicare Enrolled
Practice Location: 13851 E 14th St, Suite 200, San Leandro, CA 94578
Phone: 510-351-2100    Fax: 510-357-3389
Anatoly Brodsky, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 2500 Merced St, Internal Medicine Department, San Leandro, CA 94577
Phone: 510-454-4010    

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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