SUSAN MAYO M.D.
NPI 1386696185
Internal Medicine in San Francisco, CA

Active since May 17, 2006PECOS EnrolledAccepts Medicare Assignment
1 CALIFORNIA ST STE 2300, SAN FRANCISCO, CA 94111(800) 997-6196(833) 523-9924 Get Directions Write a Review

NPPES record last updated: May 8, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: May 8, 2025, Aug 14, 2019, Apr 20, 2018 and 1 more (4 updates tracked since 2018).

About Susan Mayo M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SUSAN MAYO M.D. (NPI 1386696185) is an individual internal medicine provider in San Francisco, California, licensed in California (A63489) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Thousand Oaks, and is a graduate of Other (1996).

NPPES Registry Identity

NPI1386696185
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameSUSAN MAYOCredential: M.D.
Location Address1 CALIFORNIA ST STE 2300San Francisco, CA 94111-5424
Mailing AddressPo Box 1176Thousand Oaks, CA 91358-0176 · (805) 495-1066
Fax(833) 523-9924
Sole ProprietorYes
Medical School CMSOtherGraduated 1996
Enumeration DateMay 17, 2006
Last NPPES UpdateMay 8, 20254 updates tracked since enumeration
NPPES CertifiedMay 8, 2025
NPI 1386696185 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in CA · A63489 Licensed in SC · 52330 Licensed in MO · 2018016629 Licensed in MI · 4301115586 Licensed in TX · R8607
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1 CALIFORNIA ST STE 2300, San Francisco, CA 94111

Secondary Practice Location 1

Location 1PO Box 1176Thousand Oaks, CA 91358-0176 · Phone (805) 495-1066

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Susan Mayo M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709901606
PECOS Enrollment IDI20110520000283, I20250627003676
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
134 services121 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
53 services53 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
16 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94111 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Registered Nurse
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Psychologist
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Nurse Practitioner (Family)
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Psychologist
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Family Medicine
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Family Medicine
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111
Family Medicine
1 CALIFORNIA ST STE 2300
SAN FRANCISCO, CA 94111

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Susan Mayo's NPI number?

The NPI number for Susan Mayo is 1386696185. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Susan Mayo located?

Susan Mayo practices at 1 California St Ste 2300, San Francisco, CA 94111. The listed phone number is (800) 997-6196.

What is Susan Mayo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Susan Mayo enrolled in Medicare?

Yes. Susan Mayo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Susan Mayo was last updated on May 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.