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WILLIAM STANLEY ANDERECK M.D.
NPI 1699800219
Internal Medicine in San Francisco, CA

Active since February 22, 2007PECOS Enrolled
2100 WEBSTER ST, SUITE 418, SAN FRANCISCO, CA 94115(415) 923-3025(415) 749-5720 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William Stanley Andereck M.d. NPPES

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

WILLIAM STANLEY ANDERECK M.D. (NPI 1699800219) is an individual internal medicine provider in San Francisco, California, licensed in California (G33409) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699800219
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM STANLEY ANDERECKCredential: M.D.
Location Address2100 WEBSTER ST, SUITE 418San Francisco, CA 94115-2373
Mailing Address2100 Webster St, Suite 418San Francisco, CA 94115-2373 · (415) 923-3025 · Fax (415) 749-5720
Phone(415) 923-3025
Fax(415) 749-5720
Sole ProprietorYes
Enumeration DateFebruary 22, 2007
Last NPPES UpdateJuly 9, 2007
✔ NPI 1699800219 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G33409
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.
2100 WEBSTER ST, San Francisco, CA 94115
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINA45539CA
Medicare ID-Type Unspecified00G334090CA · Medicare
Medicaid00G334090CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Stanley Andereck M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.
65 services40 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
38 services37 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.
23 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94115 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.

JACK C ROSE
Psychiatry & Neurology (Neurology)
2100 WEBSTER ST, 4TH FLOOR
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-5760
RUSSELL D WOO M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2100 WEBSTER ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3004
DR. STAFFORD J DUHN DDS
Dentist (General Practice)
2100 WEBSTER ST, SUITE 325
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3034
DR. RICKI POLLYCOVE M.D., M.H.S.
Obstetrics & Gynecology (Gynecology)
2100 WEBSTER ST, STE. 508
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3390
OLGA HIDCHENKO NP
Clinical Nurse Specialist (Women's Health)
2100 WEBSTER ST, SUITE 319
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3123
DR. DAVID R MINOR MD
Internal Medicine (Medical Oncology)
2100 WEBSTER ST, #326
SAN FRANCISCO, CA 94115
San Francisco County (415) 885-8600
DR. PEDRO JOSE RUIZ M.D., PH.D.
Internal Medicine (Rheumatology)
2100 WEBSTER ST, SUITE 112
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3060
JONATHAN KAPLAN MD INC
Plastic Surgery
2100 WEBSTER ST, SUITE 429
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3005

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 William Andereck's NPI number?

The NPI number for William Andereck is 1699800219. It was assigned to this individual provider in the NPPES registry on February 22, 2007.

Where is William Andereck located?

William Andereck practices at 2100 Webster St Suite 418, San Francisco, CA 94115. The listed phone number is (415) 923-3025.

What is William Andereck's specialty?

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

Is William Andereck enrolled in Medicare?

Yes. William Andereck is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Andereck was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.