Mary Elizabeth Johnson, MD - Medicare Emergency Medicine in San Francisco, CA

Mary Elizabeth Johnson, MD is a medicare enrolled "Emergency Medicine" physician in San Francisco, California. She went to University Of Oklahoma College Of Medicine and graduated in 1999 and has 25 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Scripps Health and her current practice location is 2333 Buchanan St, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (209) 342-2300.

Mary Elizabeth Johnson is licensed to practice in California (license number A75167) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1902887227.

Contact Information

Mary Elizabeth Johnson, MD
2333 Buchanan St,
San Francisco, CA 94115-1925
(209) 342-2300
(209) 524-4240

Map and Direction




Physician's Profile

Full NameMary Elizabeth Johnson
GenderFemale
SpecialityEmergency Medicine
Experience25 Years
Location2333 Buchanan St, San Francisco, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mary Elizabeth Johnson attended and graduated from University Of Oklahoma College Of Medicine in 1999
  NPI Data:
  • NPI Number: 1902887227
  • Provider Enumeration Date: 11/14/2005
  • Last Update Date: 10/03/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 9436140951
  • Enrollment ID: I20040521001017

Medical Identifiers

Medical identifiers for Mary Elizabeth Johnson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902887227NPI-NPPES
00A751670MedicaidCA
00A751670OtherCABLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A75167 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Scripps Green HospitalLa jolla, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Scripps Health92340338531365

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. Mary Elizabeth Johnson allows following entities to bill medicare on her behalf.
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780870899
PECOS PAC ID: 6406760131
Enrollment ID: O20031117000940
Entity NameScripps Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275899072
PECOS PAC ID: 9234033853
Enrollment ID: O20031124000822
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
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458

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. Mary Elizabeth Johnson 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
Mary Elizabeth Johnson, MD
Po Box 232410,
San Diego, CA 92193-2410

Ph: (209) 342-2300
Mary Elizabeth Johnson, MD
2333 Buchanan St,
San Francisco, CA 94115-1925

Ph: (209) 342-2300

Reviews and Comments


Emergency Medicine Doctors in San Francisco, CA

Paul Robinson,
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Phone: 415-948-8836    
Frederick D Pitts Jr., MD
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Practice Location: 229 7th St, San Francisco, CA 94103
Phone: 415-503-6042    Fax: 415-503-6099
Georgina Lisseth Calderon, M.D.
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Practice Location: 1501 10th Ave, Apt. 1, San Francisco, CA 94122
Phone: 323-514-0964    
Carli Renske Reisdorf, MD
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Medicare: Medicare Enrolled
Practice Location: 1101 Van Ness Ave, San Francisco, CA 94109
Phone: 415-600-6000    
Timothy Bauer Duncan, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 2333 Buchanan St, San Francisco, CA 94115
Phone: 209-342-2300    Fax: 209-524-4240
Bichhuong M Dinh, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3555 Cesar Chavez, San Francisco, CA 94110
Phone: 240-447-1281    
Dr. Lauren Elizabeth Chalwell, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1001 Potrero Avenue Department Of Emergency Medicine, San Francisco General Hospital,, San Francisco, CA 94110
Phone: 415-206-5753    

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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