DR. WILLIAM A HAYNES (MD) – Emergency Medical Services (Emergency Medicine) Physician, NPI 1427042340

DR. WILLIAM A HAYNES (MD) is a healthcare provider. based in Lantana, Texas. specializing in Emergency Medical Services (Emergency Medicine) Physician. They hold the professional credentials MD. They hold a License No. J3116 (TX). The NPI Number for DR. WILLIAM A HAYNES (MD) is 1427042340

Main info

Male
48 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM A HAYNES (MD)
NPI
1427042340
Phone
(940) 725-0022
Address
9611 ARBOR CT
Enumeration Date
7 September 2005
Last Update Date
20 November 2010

Doctor Profile

Medical School Name
LOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
9728100700
Graduation Year
1978 (48 years ago)
PAC ID
0446220735
Group Practice PAC ID
3375859408
Professional Enrollment ID
I20040726001026
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. WILLIAM A HAYNES (MD)

  • 9611, Arbor Court, Lantana, Denton County, Texas, 76226, United States

    LANTANA, TX 762266426

    Phone: (940) 725-0022

    Mailing address matches the actual address.

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: 2004-07-26

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
I20040726001026IEmergency MedicineTXTBD

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

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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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 76226)

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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: 3375859408View full group profile

Reviews

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Frequently asked questions

What is the registry number for DR. WILLIAM A HAYNES (MD)?
The registry entry for DR. WILLIAM A HAYNES (MD) shows NPI 1427042340.
Is DR. WILLIAM A HAYNES (MD)'s NPI status active today?
Active status means DR. WILLIAM A HAYNES (MD)'s NPI record is not deactivated in the public file.
What type of care does DR. WILLIAM A HAYNES (MD) provide?
DR. WILLIAM A HAYNES (MD)'s profile centers on Emergency Medical Services (Emergency Medicine) Physician. Clinical services aligned with this taxonomy classification.
Which community is linked to DR. WILLIAM A HAYNES (MD)?
DR. WILLIAM A HAYNES (MD) shows a connection to Lantana, Texas in registry-derived data.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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