DR. GARY J. GRONSTEDT (D.O.) – Psychiatry Physician, NPI 1780688531

DR. GARY J. GRONSTEDT (D.O.) is a healthcare provider. based in Chaska, Minnesota. specializing in PSYCHIATRY. They hold the professional credentials D.O.. They hold a License No. 44987 (MN). The NPI Number for DR. GARY J. GRONSTEDT (D.O.) is 1780688531

Main info

Male
35 Years Of Experience
Accepts Medicare Assignment
Name
DR. GARY J. GRONSTEDT (D.O.)
NPI
1780688531
Phone
(952) 856-4001
Address
111 HUNDERTMARK RD
Enumeration Date
9 June 2005
Last Update Date
10 March 2026

Doctor Profile

Medical School Name
KANSAS CITY UNIVERSITY OF PHYSICIANS AND SURGEONS
Secondary Phone
-
Graduation Year
1991 (35 years ago)
PAC ID
2163400417
Group Practice PAC ID
9234041997
Professional Enrollment ID
I20040712001539
Address ID
MN553184551CH111XXRDXX300
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness85
Years active:20State licenses:1Digital endpointsOther names

746 PSYCHIATRY in MN

Provider Addresses for DR. GARY J. GRONSTEDT (D.O.)

  • 111 HUNDERTMARK RD

    CHASKA, MN 553184551

    Phone: (952) 856-4001

    Type: Mailing

  • Seton Shoal Creek Hospital, 3501, Mills Avenue, Bryker Woods, Austin, Travis County, Texas, 78731, United States

    AUSTIN, TX 787316309

    Phone: (512) 324-2080

    Fax: (512) 324-2084

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-07-12

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040712001539IPsychiatryMNTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 55318)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9234041997View full group profile
NameSpecialtyState
Family PracticeMN
Internal MedicineMN
Family PracticeMN
-MN
-MN
Physician AssistantMN
Diagnostic RadiologyMN
Marriage And Family TherapistMN
Physician AssistantMN
Nurse PractitionerMN

Reviews

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Frequently asked questions

Where can patients find DR. GARY J. GRONSTEDT (D.O.)'s NPI?
You can confirm DR. GARY J. GRONSTEDT (D.O.) with NPI 1780688531; it appears in the national provider directory.
Does this profile mean DR. GARY J. GRONSTEDT (D.O.) is currently active?
Yes — DR. GARY J. GRONSTEDT (D.O.) appears active in the national provider directory.
What does DR. GARY J. GRONSTEDT (D.O.) treat or focus on?
Patients typically see DR. GARY J. GRONSTEDT (D.O.) under the specialty Psychiatry Physician. Clinical services aligned with this taxonomy classification.
Where does public data place DR. GARY J. GRONSTEDT (D.O.)?
The snapshot lists Chaska, Minnesota for DR. GARY J. GRONSTEDT (D.O.); download NPPES for the complete set.
How can I contact DR. GARY J. GRONSTEDT (D.O.)?
Phone or fax may appear on the official NPI record when supplied — verify before relying on them.

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