DR. WILLIAM CHARLES III ISLER (PHD) – Health Service Psychologist, NPI 1699838409

DR. WILLIAM CHARLES III ISLER (PHD) is a healthcare provider. based in Lackland afb, Texas. specializing in Health Service Psychologist. They hold the professional credentials PHD. They hold a License No. 2313 (WA). The NPI Number for DR. WILLIAM CHARLES III ISLER (PHD) is 1699838409

Main info

Male
Name
DR. WILLIAM CHARLES III ISLER (PHD)
NPI
1699838409
Phone
(210) 292-6225
Address
1100 WILFORD HALL LOOP BLDG 4554
Enumeration Date
19 December 2006
Last Update Date
11 September 2019
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

Provider Addresses for DR. WILLIAM CHARLES III ISLER (PHD)

  • 1100 WILFORD HALL LOOP BLDG 4554

    LACKLAND AFB, TX 782365638

    Phone: (210) 292-6225

    Type: Location

  • 3403, Fontenay Park, Westover Forest, San Antonio, Bexar County, Texas, 78251, United States

    SAN ANTONIO, TX 782514745

    Phone: (210) 454-5012

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

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.

No Medicare enrollment or revalidation data available for this provider in our database.

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.

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

Insurance plans in this area (ZIP 78236)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

Can I verify DR. WILLIAM CHARLES III ISLER (PHD) with an NPI only?
You can start verification with NPI 1699838409 for DR. WILLIAM CHARLES III ISLER (PHD), then check state licensing separately.
Does the file indicate DR. WILLIAM CHARLES III ISLER (PHD) is practicing under active NPI?
Directory data currently reports DR. WILLIAM CHARLES III ISLER (PHD) as active.
What is DR. WILLIAM CHARLES III ISLER (PHD) best known for clinically?
Directory data describes DR. WILLIAM CHARLES III ISLER (PHD) with Health Service Psychologist. Clinical services aligned with this taxonomy classification.
Where is DR. WILLIAM CHARLES III ISLER (PHD) based?
DR. WILLIAM CHARLES III ISLER (PHD) is tied to Lackland Afb, Texas in the data we show; additional addresses may exist on the full record.
Why does DR. WILLIAM CHARLES III ISLER (PHD) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

Similar Providers

DR. RALPH E. CASAZZA (PH.D.)

Health Service Psychologist
Trixie Lane, Houston, Harris County, Texas, 77042, United States
NPI: 1851394381
11124 WURZBACH RD
NPI: 1457359051

DR. FRANK DAVID OHLER (PHD PC)

Clinical Psychologist
5924, Royal Lane, Dallas, Dallas County, Texas, 75230, United States
NPI: 1962494955
Stockton Law, P.L.L.C., 6136, Frisco Square Boulevard, Frisco, Collin County, Texas, 75034, United States
NPI: 1003805078
Georgetown Boulevard, Warner Robins, Houston County, Georgia, 31088, United States
NPI: 1518949163

GEORGE LAZAR (PHD)

Health Service Psychologist
7324 SOUTHWEST FWY STE 805
NPI: 1700860251

DR. ALICE INMAN (PSYD)

Health Service Psychologist
BROOKE ARMY MEDICAL CENTER
NPI: 1336124544

DR. ALAN JOHN MAIERS (PSY.D.)

Health Service Psychologist
6322 LAKEWOOD PARK
NPI: 1508841727