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WILLIAM ARTHUR GROSDIDIER
NPI 1447605886
Dentist - Oral and Maxillofacial Surgery in Jbsa Lackland, TX

Active since May 03, 2016PECOS EnrolledAccepts Medicare Assignment
1100 WILFORD HALL LOOP BLDG 4554, JBSA LACKLAND, TX 78236(651) 468-9356 Get Directions Write a Review

NPPES record last updated: March 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 18, 2025, Jul 19, 2024, Sep 7, 2021 and 1 more (4 updates tracked since 2016).

About William Arthur Grosdidier NPPES

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

WILLIAM ARTHUR GROSDIDIER (NPI 1447605886) is an individual oral and maxillofacial surgery provider in Jbsa Lackland, Texas, licensed in Minnesota (D13681) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Fort Sam Houston, and is a graduate of University Of Minnesota School Of Dentistry (2016).

NPPES Registry Identity

NPI1447605886
Entity TypeIndividualMale
Primary Taxonomy1223S0112X
Provider Legal NameWILLIAM ARTHUR GROSDIDIER
Location Address1100 WILFORD HALL LOOP BLDG 4554Jbsa Lackland, TX 78236-5638
Mailing Address1100 Wilford Hall Loop Bldg 4554Jbsa Lackland, TX 78236-5638
Phone(651) 468-9356
Sole ProprietorNo
Medical School CMSUniversity Of Minnesota School Of DentistryGraduated 2016
Enumeration DateMay 3, 2016
Last NPPES UpdateMarch 18, 20254 updates tracked since enumeration
NPPES CertifiedMarch 18, 2025
✔ NPI 1447605886 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyDentist · Oral and Maxillofacial SurgeryDental Providers
Taxonomy Code1223S0112X
License✔ Licensed in MN · D13681
Definition
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
Also ListedDentistTaxonomy 122300000X · License D13681 (MN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1100 WILFORD HALL LOOP BLDG 4554, Jbsa Lackland, TX 78236
Open in Google Maps ↗

Secondary Practice Location 1

Location 13551 Roger Brooke DrFort Sam Houston, TX 78234-4504 · Phone (651) 468-9356

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Delta Dental of Wisconsin, Inc., HealthPartners and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Arthur Grosdidier is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID143739664
PECOS Enrollment IDI20250604003407
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 78236 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. REGINA MARIA REINSVOLD M.D.
Anesthesiology
1100 WILFORD HALL LOOP BLDG 4554
LACKLAND AFB, TX 78236
Bexar County (210) 292-6255
ROBERT LEE LMFT
Marriage & Family Therapist
1100 WILFORD HALL LOOP BLDG 4554
JBSA LACKLAND, TX 78236
Bexar County (210) 292-6255
DR. FINIANNE JIMENEZ UMALI-CORRY DO, MPH
Internal Medicine
1100 WILFORD HALL LOOP BLDG 4554
LACKLAND AFB, TX 78236
Bexar County (210) 292-4277
DAVID CHRISTOPHER MARI D.O.
Allergy & Immunology
1100 WILFORD HALL LOOP BLDG 4554
JBSA LACKLAND, TX 78236
Bexar County (210) 292-6255
DR. HANNAH GHONG-JU AHN MD
Radiology (Diagnostic Radiology)
1100 WILFORD HALL LOOP BLDG 4554
JBSA LACKLAND, TX 78236
Bexar County (210) 292-4482
MRS. CASSANDRA LANETTE DOUGLAS PHARMACIST
Pharmacist
1100 WILFORD HALL LOOP BLDG 4554
JBSA LACKLAND, TX 78236
Bexar County (102) 292-1144
DR. CHARLES RICHARD ELCHERT JR. D.C.
Chiropractor
1100 WILFORD HALL LOOP BLDG 4554
JBSA LACKLAND, TX 78236
Bexar County (210) 292-3587
DR. LISA LEADER KOHLER OD
Optometrist
1100 WILFORD HALL LOOP BLDG 4554
JBSA LACKLAND, TX 78236
Bexar County (210) 292-6255

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 Grosdidier's NPI number?

The NPI number for William Grosdidier is 1447605886. It was assigned to this individual provider in the NPPES registry on May 3, 2016.

Where is William Grosdidier located?

William Grosdidier practices at 1100 Wilford Hall Loop Bldg 4554, Jbsa Lackland, TX 78236. The listed phone number is (651) 468-9356.

What is William Grosdidier's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Is William Grosdidier enrolled in Medicare?

Yes. William Grosdidier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Grosdidier accept?

Health plans from Anthem Blue Cross and Blue Shield, Delta Dental of Wisconsin, Inc., HealthPartners and Security Health Plan list William Grosdidier as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Grosdidier was last updated on March 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.