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DR. THOMAS E STILES M.D.
NPI 1831118371
Internal Medicine - Endocrinology, Diabetes & Metabolism in Saint Helena, CA

Active since July 18, 2006PECOS Enrolled
999 ADAMS ST 201, SAINT HELENA, CA 94574(707) 255-8825(707) 252-9325 Get Directions Write a Review

NPPES record last updated: September 30, 2015. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Thomas E Stiles M.d. NPPES

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

DR. THOMAS E STILES M.D. (NPI 1831118371) is an individual endocrinology, diabetes & metabolism provider in Saint Helena, California, licensed in California (G22053) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831118371
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. THOMAS E STILESCredential: M.D.
Location Address999 ADAMS ST 201Saint Helena, CA 94574-1148
Mailing Address999 Adams St 201Saint Helena, CA 94574-1148 · (707) 255-8825 · Fax (707) 252-9325
Phone(707) 255-8825
Fax(707) 252-9325
Sole ProprietorNo
Enumeration DateJuly 18, 2006
Last NPPES UpdateSeptember 30, 2015
✔ NPI 1831118371 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · G22053
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
999 ADAMS ST 201, Saint Helena, CA 94574
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Other Identifiers 2

Medicare UPINA41467CA
Medicare PINCA167332CA

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. Thomas E Stiles 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 94574 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
$145.99 typical visit price
range $65.08 – $192.16
Typical copayment $36.49 (range $16.27 – $48.04)
Most-billed visit code 99204
Established Patient
$113.15 typical visit price
range $21.86 – $157.83
Typical copayment $28.28 (range $5.46 – $39.45)
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.

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 Thomas Stiles's NPI number?

The NPI number for Thomas Stiles is 1831118371. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Thomas Stiles located?

Thomas Stiles practices at 999 Adams St 201, Saint Helena, CA 94574. The listed phone number is (707) 255-8825.

What is Thomas Stiles's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Thomas Stiles enrolled in Medicare?

Yes. Thomas Stiles is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Thomas Stiles was last updated on September 30, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.