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Heather Stark, MS, SAC-IT

  • Janesville, WI
  • Addiction (substance use disorder) counselor
NPI1376358887
Affiliated sites
3
Medical group
1
State license
1
Year NPI issued
2025
Practice address
903 Mineral Point Avenue, Janesville, WI 53548
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD

Acute Care Hospital outpatient department · Janesville, Wisconsin

See all 4 affiliations

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Heather Stark is an addiction (substance use disorder) counselor in Janesville, Wisconsin

Heather Stark practices at Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD in Janesville, Wisconsin.

Heather Stark's NPI, 1376358887, was assigned on February 11, 2025.

NPI and contact details
NPI
1376358887NPI Registry (opens in a new tab)
NPI enumeration date
February 11, 2025
NPI status
Active
Professional email
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Personal email
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Mobile number
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Sex
Female

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Heather Stark practices at Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD in Janesville, Wisconsin

Heather Stark's primary practice is Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD, at 903 Mineral Point Avenue, Janesville, WI 53548.

  • Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD
    903 Mineral Point Avenue, Janesville, WI 53548

Source: Dmand AI Affiliation Data

Heather Stark is affiliated with 3 sites of care and 1 medical group

Heather Stark's primary practice is Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD in Janesville, Wisconsin. The medical group on file is Mercyhealth. Dmand AI also links Heather Stark to 1 more group practice or clinic and 1 therapy and rehab clinic, each named with a free account. Heather Stark's employer is on file too: a hospital.

Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPDAcute Care Hospital outpatient department · Janesville, WisconsinPrimary
MercyhealthPrimary care group, Janesville, WI1 group practice or clinicName with a free account1 therapy and rehab clinicName with a free accountEmployer: hospitalName with a free account
See all 4 affiliations for Heather Stark

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Heather Stark's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Heather Stark practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPDAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Heather Stark is one of 423 addiction (substance use disorder) counselors in Wisconsin

Counselor is Heather Stark's primary specialty in the NPI Registry, under taxonomy code 101YA0400X. The record also lists addiction (substance use disorder).

Specialties and state licenses

  • Addiction (substance use disorder) counselorPrimarytaxonomy 101YA0400X

Addiction (substance use disorder) counselors near Heather Stark

Counts of addiction (substance use disorder) counselors with a Dmand AI profile, by place and practice. Each opens the list.

423addiction (substance use disorder) counselors in Wisconsin
7addiction (substance use disorder) counselors in Janesville

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Heather Stark's patients have a median age of 30

Across all payers, Dmand AI patient panel data puts Heather Stark's median patient age at 30, with 100% women.

Heather Stark's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 30

Patient panel by sex, all payers

  • Women100%
  • Men0%

Source: Dmand AI Patient Panel Data

Sources for Heather Stark's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Heather Stark

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Heather Stark's NPI number?

Heather Stark's NPI number is 1376358887. It was assigned on February 11, 2025, and it is active in the NPI Registry.

What does Heather Stark specialize in?

Heather Stark is an addiction (substance use disorder) counselor in Janesville, Wisconsin. The primary specialty in the NPI Registry is Addiction (Substance Use Disorder) Counselor (taxonomy code 101YA0400X).

Where does Heather Stark practice?

Heather Stark practices at 903 Mineral Point Avenue, Janesville, WI 53548. Heather Stark's primary practice is Mercy Hospital Janesville - Sleep C - Mhj Sleep Center - Mhj Sleep Center - HOPD in Janesville, Wisconsin. Dmand AI also links Heather Stark to 1 group practice or clinic and 1 therapy and rehab clinic.

What medical group is Heather Stark part of?

Heather Stark is linked to Mercyhealth.

How long has Heather Stark been practicing?

Heather Stark's NPI was assigned in 2025.

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