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MICHELLE KAREN CASSARA MD
NPI 1518092972
Internal Medicine - Endocrinology, Diabetes & Metabolism in Arvada, CO

Active since February 23, 2007PECOS EnrolledAccepts Medicare Assignment
15389 W 91ST DR STE 200, ARVADA, CO 80007(303) 403-7933(303) 403-7945 Get Directions Write a Review

NPPES record last updated: January 30, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Michelle Karen Cassara Md NPPES

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

MICHELLE KAREN CASSARA MD (NPI 1518092972) is an individual endocrinology, diabetes & metabolism provider in Arvada, Colorado, licensed in Colorado (46410) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (2001).

NPPES Registry Identity

NPI1518092972
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameMICHELLE KAREN CASSARACredential: MD
Location Address15389 W 91ST DR STE 200Arvada, CO 80007-1406
Mailing Address15389 W 91st Dr Ste 200Arvada, CO 80007-1406 · (303) 403-7933 · Fax (303) 403-7945
Phone(303) 403-7933
Fax(303) 403-7945
Sole ProprietorNo
Medical School CMSUniversity Of Vermont College Of MedicineGraduated 2001
Enumeration DateFebruary 23, 2007
Last NPPES UpdateJanuary 30, 2025
NPPES CertifiedJanuary 30, 2025
✔ NPI 1518092972 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 CO · 46410
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.

15389 W 91ST DR STE 200, Arvada, CO 80007
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Other Identifiers 1

Medicaid69820244CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Michelle Karen Cassara Md 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 ID7719954346
PECOS Enrollment IDI20080821000063
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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
193 services146 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
162 services74 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
39 services38 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80007 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
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
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 8

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

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
6 suppliers36 claims460 services$17.92 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
6 suppliers35 claims1,215 services$2.36 avg. paid by Medicare
Supply allowance for adjunctive continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service A4238
DME-Medical/Surgical Supplies · category DA000N
3 suppliers33 claims33 services$173.59 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
32 suppliers109 claims471 services$6.08 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
17 suppliers47 claims101 services$1.09 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
4 suppliers32 claims32 services$303.24 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 4

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

DR. IRINEL STANCIU MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
15389 W 91ST DR STE 200
ARVADA, CO 80007
Jefferson County (303) 403-7933
BREANNA ALISIA YOUNG PA-C
Physician Assistant
15389 W 91ST DR STE 200
ARVADA, CO 80007
Jefferson County (303) 403-7933
DR. CAITLIN CHANTAL BELL MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
15389 W 91ST DR STE 200
ARVADA, CO 80007
Jefferson County (303) 403-7933
INTERMOUNTAIN MEDICAL GROUP DENVER, LLC
Internal Medicine (Endocrinology, Diabetes & Metabolism)
15389 W 91ST DR STE 200
ARVADA, CO 80007
Jefferson County (303) 403-7933

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 Michelle Cassara's NPI number?

The NPI number for Michelle Cassara is 1518092972. It was assigned to this individual provider in the NPPES registry on February 23, 2007.

Where is Michelle Cassara located?

Michelle Cassara practices at 15389 W 91st Dr Ste 200, Arvada, CO 80007. The listed phone number is (303) 403-7933.

What is Michelle Cassara's specialty?

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

Is Michelle Cassara enrolled in Medicare?

Yes. Michelle Cassara 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 Michelle Cassara accept?

Health plans from UnitedHealthcare list Michelle Cassara 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 Michelle Cassara was last updated on January 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.