WILLIAM CRAIG PALEY (D.O.) – Family Medicine Physician, NPI 1124105754

WILLIAM CRAIG PALEY (D.O.) is a healthcare provider. based in Rancho cucamonga, California. specializing in FAMILY PRACTICE. They hold the professional credentials D.O.. They hold a License No. 20A4932 (IL). The NPI Number for WILLIAM CRAIG PALEY (D.O.) is 1124105754

Main info

Male
45 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM CRAIG PALEY (D.O.)
NPI
1124105754
Phone
(909) 987-2528
Address
PO BOX 4049
Enumeration Date
1 November 2006
Last Update Date
27 February 2024

Doctor Profile

Medical School Name
MIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Secondary Phone
9098846700
Graduation Year
1981 (45 years ago)
PAC ID
9638061435
Group Practice PAC ID
8426369067
Professional Enrollment ID
I20040326000661
Address ID
CA924102737SA570XXAVEX501
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness75
Years active:19State licenses:1Digital endpointsOther names

13,237 FAMILY PRACTICE in CA

Provider Addresses for WILLIAM CRAIG PALEY (D.O.)

  • PO BOX 4049

    RANCHO CUCAMONGA, CA 917294049

    Phone: (909) 987-2528

    Fax: (909) 987-4668

    Type: Mailing

  • 437 N EUCLID AVE

    ONTARIO, CA 917623456

    Phone: (909) 988-2555

    Fax: (909) 988-4447

    Type: Mailing

  • 8330, Red Oak Street, Rancho Cucamonga, San Bernardino County, California, 91730, United States

    SUITE #201

    RANCHO CUCAMONGA, CA 917300602

    Phone: (909) 987-2528

    Fax: (909) 987-4668

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 21 Open Payments records for all available years, with a total value of $445.

Total Amount is formed as General ($445) + Research ($0) + Ownership ($0) = $445.

Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($150).

Total Amount

$445

General + Research + Ownership

Payments

21

Total payment records

General Amount

$445

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-17

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

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: 2004-03-26

PECOS data refreshed: 2026-06-15

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
I20040326000661IFamily 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
82962Blood glucose (sugar) test performed by hand-held instrument9331$0
81002Urinalysis, manual test6528$0
View full utilization report →

Insurance plans in this area (ZIP 91729)

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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: 8426369067View full group profile
NameSpecialtyState
Internal MedicineCA
Nurse Practitioner, Physician AssistantCA
Physician AssistantCA
Physician AssistantCA
-CA
Nurse PractitionerCA
O P T O M E T R YCA
Nurse PractitionerCA
Physician AssistantIL
General PracticeCA

Reviews

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Frequently asked questions

Is there an official ID for WILLIAM CRAIG PALEY (D.O.) in U.S. healthcare records?
The official identifier for WILLIAM CRAIG PALEY (D.O.) is NPI 1124105754.
Would WILLIAM CRAIG PALEY (D.O.) appear as active to a payer?
You can treat WILLIAM CRAIG PALEY (D.O.) as active for directory purposes; confirm clinical privileges separately.
How would a patient describe WILLIAM CRAIG PALEY (D.O.)'s focus?
For WILLIAM CRAIG PALEY (D.O.), the primary taxonomy reads as Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for WILLIAM CRAIG PALEY (D.O.)?
Travel planning: use Rancho Cucamonga, California as the reference point for WILLIAM CRAIG PALEY (D.O.), then confirm.
Can I trust this NPI listing for WILLIAM CRAIG PALEY (D.O.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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