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DR. WILLIAM J MCALLISTER JR. M.D.
NPI 1821072646
Internal Medicine in Corte Madera, CA

Active since December 05, 2005PECOS Enrolled
21 TAMAL VISTA BLVD, STE. 110, CORTE MADERA, CA 94925(415) 924-5010(415) 924-5210 Get Directions Write a Review

NPPES record last updated: February 13, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William J Mcallister Jr. M.d. NPPES

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

DR. WILLIAM J MCALLISTER JR. M.D. (NPI 1821072646) is an individual internal medicine provider in Corte Madera, California, licensed in California (G18899) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821072646
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM J MCALLISTER JR.Credential: M.D.
Location Address21 TAMAL VISTA BLVD, STE. 110Corte Madera, CA 94925-1130
Mailing Address21 Tamal Vista Blvd, Ste. 110Corte Madera, CA 94925-1130 · (415) 924-5010 · Fax (415) 924-5210
Phone(415) 924-5010
Fax(415) 924-5210
Sole ProprietorYes
Enumeration DateDecember 5, 2005
Last NPPES UpdateFebruary 13, 2017
✔ NPI 1821072646 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 · G18899
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.
21 TAMAL VISTA BLVD, Corte Madera, CA 94925
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Other Identifiers 1

Medicare UPINA40456CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William J Mcallister Jr. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94925 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
$154.04 typical visit price
range $69.07 – $202.63
Typical copayment $38.51 (range $17.26 – $50.65)
Most-billed visit code 99204
Established Patient
$119.61 typical visit price
range $23.44 – $166.64
Typical copayment $29.90 (range $5.86 – $41.66)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
2 suppliers12 claims12 services$185.34 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

FARAHKHAN,MD,INC
Psychiatry & Neurology (Psychiatry)
21 TAMAL VISTA BLVD, 224
CORTE MADERA, CA 94925
Marin County (415) 999-1259
COURAGEOUS COUNSELING CENTER
Clinic/Center (Mental Health (Including Community Mental Health Center))
21 TAMAL VISTA BLVD
CORTE MADERA, CA 94925
Marin County (415) 448-6780
RUTH RUBIN M.D.
Internal Medicine
21 TAMAL VISTA BLVD, STE. 100
CORTE MADERA, CA 94925
Marin County (415) 927-0101
MR. STEFAN BENTON MFT
Marriage & Family Therapist
21 TAMAL VISTA BLVD, SUITE 224
CORTE MADERA, CA 94925
Marin County (415) 924-7785
PAUL ANTHONY MARRA LMFT
Marriage & Family Therapist
21 TAMAL VISTA BLVD, SUITE 200
CORTE MADERA, CA 94925
Marin County (415) 939-1851
DR. ARBELLA ODISHOO PARROT PSYD
Psychologist (Clinical)
21 TAMAL VISTA BLVD, SUITE 203
CORTE MADERA, CA 94925
Marin County (415) 548-3370
JENNIFER CAPPELLETTI LMFT 146548
Marriage & Family Therapist
21 TAMAL VISTA BLVD
CORTE MADERA, CA 94925
Marin County (415) 496-6584
DR. PAMELA MARGARET ASHKENAZY LMFT, PH.D.
Counselor (Professional)
21 TAMAL VISTA BLVD, SUITE 116
CORTE MADERA, CA 94925
Marin County (415) 945-9098

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 Mcallister's NPI number?

The NPI number for William Mcallister is 1821072646. It was assigned to this individual provider in the NPPES registry on December 5, 2005.

Where is William Mcallister located?

William Mcallister practices at 21 Tamal Vista Blvd Ste. 110, Corte Madera, CA 94925. The listed phone number is (415) 924-5010.

What is William Mcallister's specialty?

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

Is William Mcallister enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for William Mcallister was last updated on February 13, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.