MARIA THIES D.O.
NPI 1295186765
Internal Medicine - Geriatric Medicine in Bermuda Dunes, CA

Q: What is Maria Thies's NPI number?

The NPI number for Maria Thies is 1295186765. It was assigned to this individual provider in the NPPES registry on June 27, 2016.

Q: What is Maria Thies's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Maria Thies was last updated on June 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 27, 2016PECOS Enrolled

41120 WASHINGTON ST STE 201, BERMUDA DUNES, CA 92203(760) 360-3193(760) 360-3194 Get Directions Write a Review

NPPES record last updated: June 10, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 10, 2024, Jun 7, 2024, Jun 1, 2020 and 1 more (4 updates tracked since 2016).

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About Maria Thies D.o. NPPES

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

MARIA THIES D.O. (NPI 1295186765) is an individual geriatric medicine provider in Bermuda Dunes, California, licensed in Michigan (5101025109) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1295186765

Entity TypeIndividualFemale

Primary Taxonomy207RG0300X

Provider Legal NameMARIA THIESCredential: D.O.

Location Address41120 WASHINGTON ST STE 201Bermuda Dunes, CA 92203-9596

Mailing Address41120 Washington St Ste 201Bermuda Dunes, CA 92203-9596 · (760) 360-3193 · Fax (760) 360-3194

Phone(760) 360-3193

Fax(760) 360-3194

Sole ProprietorNo

Enumeration DateJune 27, 2016

Last NPPES UpdateJune 10, 20244 updates tracked since enumeration

NPPES CertifiedJune 10, 2024

✔ NPI 1295186765 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in MI · 5101025109

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

Also ListedInternal MedicineTaxonomy 207R00000X · License 5701022763 (MI), 20A17345 (CA)

41120 WASHINGTON ST STE 201, Bermuda Dunes, CA 92203

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria Thies D.o. 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.

Medicare Billing Reassignment

Medicare enrollment records show Maria Thies reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Desert Medical Group, Inc.

13 mi

Family Medicine

275 N EL CIELO RD
Palm Springs, CA 92262

Reassigned Medicare billing, California enrollment
167 clinicians in this Medicare group

NPI 1114918612 (760) 320-4122

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92203 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

$179.42 typical visit price

range $59.60 – $179.42

Typical copayment $44.85 (range $14.90 – $44.85)

Most-billed visit code 99205

Established Patient

$104.64 typical visit price

range $19.37 – $146.42

Typical copayment $26.16 (range $4.84 – $36.60)

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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier15 claims15 services$37.50 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

2 suppliers20 claims20 services$11.40 avg. paid by Medicare

Elevating leg rests, pair (for use with capped rental wheelchair base) K0195

DME-Wheelchairs · category DD021N

1 supplier15 claims15 services$5.73 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DUNG NGUYEN

Podiatrist (Primary Podiatric Medicine)

41120 WASHINGTON ST STE 201
BERMUDA DUNES, CA 92203

Riverside County (760) 360-3193

SCOTT RUSSELL DO

Internal Medicine

41120 WASHINGTON ST STE 201
BERMUDA DUNES, CA 92203

Riverside County (760) 360-3193

JEFFREY DALE LAWHEAD MD

Family Medicine

41120 WASHINGTON ST STE 201
BERMUDA DUNES, CA 92203

Riverside County (760) 360-3193

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 Maria Thies's NPI number?

The NPI number for Maria Thies is 1295186765. It was assigned to this individual provider in the NPPES registry on June 27, 2016.

Where is Maria Thies located?

Maria Thies practices at 41120 Washington St Ste 201, Bermuda Dunes, CA 92203. The listed phone number is (760) 360-3193.

What is Maria Thies's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Maria Thies enrolled in Medicare?

Yes. Maria Thies is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maria Thies's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Thies reassigns Medicare benefits to Desert Medical Group, Inc. (Palm Springs, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maria Thies's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Maria Thies was last updated on June 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.