Nancy G. Mattax, PhD

  • Springfield, MO
  • Clinical psychologist
NPI1154657385PAC ID6002940277
Medicare patients, 2024
13
Affiliated sites
2
Medical group
1
State license
1
Year NPI issued
2009
Practice address
1325 E Cherokee St, Springfield, MO 65804
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mercy Hospital Springfield - Health Styles - HOPD

Acute Care Hospital outpatient department · Springfield, Missouri

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Nancy G. Mattax is a clinical psychologist in Springfield, Missouri

Nancy Mattax practices at Mercy Hospital Springfield - Health Styles - HOPD in Springfield, Missouri.

Nancy Mattax's NPI, 1154657385, was assigned on October 22, 2009. Nancy Mattax holds Missouri license 01483.

NPI and contact details
Medicare PAC ID
6002940277
NPI enumeration date
October 22, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
63
Medical school graduation
1989

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Nancy G. Mattax practices at Mercy Hospital Springfield - Health Styles - HOPD in Springfield, Missouri

Nancy Mattax's primary practice is Mercy Hospital Springfield - Health Styles - HOPD, at 1325 E Cherokee St, Springfield, MO 65804.

  • Mercy Hospital Springfield - Health Styles - HOPD
    1325 E Cherokee St, Springfield, MO 65804

Source: Dmand AI Affiliation Data

Nancy G. Mattax is affiliated with 2 sites of care and 1 medical group

Nancy Mattax's primary practice is Mercy Hospital Springfield - Health Styles - HOPD in Springfield, Missouri. The medical group on file is Mercy Clinic Family Medicine - Hollister. Dmand AI also links Nancy Mattax to 1 more group practice or clinic, named with a free account. Nancy Mattax's employer is on file too: a hospital.

Mercy Hospital Springfield - Health Styles - HOPDAcute Care Hospital outpatient department · Springfield, MissouriPrimary
Mercy Clinic Family Medicine - HollisterPrimary care group, Hollister, MO1 group practice or clinicName with a free accountEmployer: hospitalName with a free account
See all 3 affiliations for Nancy Mattax

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Nancy G. Mattax's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Nancy Mattax practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mercy Hospital Springfield - Health Styles - HOPDAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Nancy G. Mattax is one of 367 clinical psychologists in Missouri

Clinical is Nancy Mattax's primary specialty in the NPI Registry, under taxonomy code 103TC0700X. Nancy Mattax is licensed in Missouri.

Specialties and state licenses

  • Clinical psychologist, MissouriPrimaryLicense 01483 · taxonomy 103TC0700X

Clinical psychologists near Nancy Mattax

Counts of clinical psychologists with a Dmand AI profile, by place and practice. Each opens the list.

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

Nancy G. Mattax treated 13 Medicare patients in 2024, average age 68

CMS counts 13 Medicare patients who saw Nancy Mattax in 2024. Their average risk score is 0.91, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Nancy Mattax's median patient age at 70, with 67% women.

Medicare patients, 202413
Average age68
Average risk score0.91

Nancy Mattax's patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women67%
  • Men33%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Nancy G. Mattax offers telehealth to Medicare patients

Nancy Mattax accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Nancy Mattax as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

Sources for Nancy G. Mattax'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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 Nancy G. Mattax

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

What is Nancy G. Mattax's NPI number?

Nancy G. Mattax's NPI number is 1154657385. It was assigned on October 22, 2009, and it is active in the NPI Registry.

What does Nancy G. Mattax specialize in?

Nancy G. Mattax is a clinical psychologist in Springfield, Missouri. The primary specialty in the NPI Registry is Clinical Psychologist (taxonomy code 103TC0700X).

Where does Nancy G. Mattax practice?

Nancy Mattax practices at 1325 E Cherokee St, Springfield, MO 65804. Nancy Mattax's primary practice is Mercy Hospital Springfield - Health Styles - HOPD in Springfield, Missouri. Dmand AI also links Nancy Mattax to 1 group practice or clinic.

What is Nancy G. Mattax's medical license number?

Nancy Mattax holds Missouri license 01483.

What medical group is Nancy G. Mattax part of?

Nancy Mattax is linked to Mercy Clinic Family Medicine - Hollister.

Does Nancy G. Mattax accept Medicare?

Yes. CMS lists Nancy Mattax as accepting Medicare assignment.

Does Nancy G. Mattax offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Nancy Mattax as offering telehealth services.

How many Medicare patients does Nancy G. Mattax see?

CMS counts 13 Medicare patients who saw Nancy Mattax in 2024, with an average age of 68.

How long has Nancy G. Mattax been practicing?

Nancy Mattax graduated from medical school in 1989, 37 years ago.

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