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DR. WILLIAM GRUNDLER M.D.
NPI 1750445201
Internal Medicine in Ventura, CA

Active since December 20, 2006PECOS Enrolled
3291 LOMA VISTA RD, VENTURA, CA 93003(805) 652-6556 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. William Grundler M.d. NPPES

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

DR. WILLIAM GRUNDLER M.D. (NPI 1750445201) is an individual internal medicine provider in Ventura, California, licensed in California (G87153) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750445201
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WILLIAM GRUNDLERCredential: M.D.
Location Address3291 LOMA VISTA RDVentura, CA 93003-3099
Mailing Address3291 Loma Vista RdVentura, CA 93003-3099 · (805) 652-6556
Phone(805) 652-6556
Sole ProprietorNo
Enumeration DateDecember 20, 2006
Last NPPES UpdateNovember 29, 2021
✔ NPI 1750445201 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G87153
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3291 LOMA VISTA RD, Ventura, CA 93003
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Grundler M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 93003 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
Most-billed visit code 99214
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.

ANNA MIKHAILOVSKY M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6228
DR. BRAD S ADLER M.D.
Pathology (Anatomic Pathology)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6000
DR. RAMON GOMEZ M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556
FRANCES O'SULLIVAN
Psychiatry & Neurology (Psychiatry)
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556
DR. MARISA SPORTELLI M.D.
Family Medicine
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6556
DR. STEPHANUS R PHILIP MD
Hospitalist
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 652-6075
MS. EUGENIA S H PANG OTRL
Occupational Therapist
3291 LOMA VISTA RD, VENTURA COUNTY MEDICAL CENTER
VENTURA, CA 93003
Ventura County (805) 648-9980
DR. KEVIN ANDREW BARKLEY M.D.
Anesthesiology
3291 LOMA VISTA RD
VENTURA, CA 93003
Ventura County (805) 642-8565

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 Grundler's NPI number?

The NPI number for William Grundler is 1750445201. It was assigned to this individual provider in the NPPES registry on December 20, 2006.

Where is William Grundler located?

William Grundler practices at 3291 Loma Vista Rd, Ventura, CA 93003. The listed phone number is (805) 652-6556.

What is William Grundler's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Grundler enrolled in Medicare?

Yes. William Grundler is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Grundler was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.