The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Aurora and Colorado

43 active clinicians are listed under Doula with a practice address in Aurora, CO (565 in Colorado).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Aurora

0% of these 43 clinicians have the CMS telehealth indicator.

0% of these 43 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-06-29

Doula Primary Specialty

NUCC Taxonomy Code: 374J00000X

Doulas work in a variety of settings and have been trained to provide physical, emotional, and informational support to a mother before, during, and just after birth and/or provide emotional and practical support to a mother during the postpartum period.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Colorado Division of Professions and Occupations.

Look Up on State Board Site

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events

📍

Updated Practice Location June 29, 2026

Registered at 2016 S NEWARK WAY, AURORA, CO 800141124 (Tel: 7208370643)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 29, 2026

Doula

✅

NPI Profile Active November 15, 2018

NPI status registered as active in NPPES database

📍

Practice Location (Initial Record) November 15, 2018

Registered at 1355 S COLORADO BLVD STE C120, DENVER, CO 802223305 (Tel: 3037569052)

📍

Business Mailing Address (Initial Record) November 15, 2018

Registered at 2016 S NEWARK WAY, AURORA, CO 800141124 (Tel: 7208370643)

👤

Provider Name / Credentials (Initial Record) November 15, 2018

Recorded as MICHELE SIENKIEWICZ, LCSW

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 15, 2018

Social Worker (license number reported to NPPES: CO 09925666)

🟢

Initial NPI Registration & Enumeration November 15, 2018

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1164991410

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: November 15, 2018

Last Update: June 29, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2016 S Newark Way

Aurora, CO 800141124

Phone: 7208370643

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.