WILLIAM S WARSHAL (MD) – Family Medicine Physician, NPI 1285620666

WILLIAM S WARSHAL (MD) is a healthcare provider. based in Saratoga, California. specializing in Family Medicine Physician. They hold the professional credentials MD. They hold a License No. G41468 (CA). The NPI Number for WILLIAM S WARSHAL (MD) is 1285620666

Main info

Male
Sole Proprietor
49 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM S WARSHAL (MD)
NPI
1285620666
Phone
(408) 605-8612
Address
12980 TEN OAK WAY
Enumeration Date
21 September 2005
Last Update Date
1 May 2024

Doctor Profile

Medical School Name
UNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Secondary Phone
4086058612
Graduation Year
1977 (49 years ago)
PAC ID
5698662732
Group Practice PAC ID
6800106980
Professional Enrollment ID
I20040302001444
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for WILLIAM S WARSHAL (MD)

  • 12980, Ten Oak Way, Saratoga, Santa Clara County, California, 95070, United States

    SARATOGA, CA 950704421

    Phone: (408) 605-8612

    Fax: (650) 631-2448

    Type: Mailing

  • 15251 NATIONAL AVE STE 104

    LOS GATOS, CA 950322400

    Phone: (408) 605-8612

    Fax: (650) 631-2448

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-03-02

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040302001444IFamily PracticeCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99310Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes432182$0
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes343102$0
99306Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes285261$0
99308Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes4319$0
99305Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes2523$0
View full utilization report →

Insurance plans in this area (ZIP 95070)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6800106980View full group profile
NameSpecialtyState
-CA

Reviews

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Frequently asked questions

What is WILLIAM S WARSHAL (MD)'s NPI number?
WILLIAM S WARSHAL (MD)'s NPI is 1285620666 — the number used across U.S. healthcare to identify this provider.
Is WILLIAM S WARSHAL (MD) still an active registrant?
WILLIAM S WARSHAL (MD) carries an active NPI according to the public dataset.
What expertise is attributed to WILLIAM S WARSHAL (MD)?
WILLIAM S WARSHAL (MD)'s specialty line reads Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for WILLIAM S WARSHAL (MD)?
Travel planning: use Saratoga, California as the reference point for WILLIAM S WARSHAL (MD), then confirm.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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