1. Home
  2. Directory
  3. Minnesota
  4. Lakeville
  5. Psychiatry Neurology
  6. NPI Profile

DR. GREGORY LLOYD THELEN THELEN MD
NPI 1821186768
Psychiatry & Neurology - Psychiatry in Lakeville, MN

Active since October 10, 2006PECOS EnrolledAccepts Medicare Assignment
83.53/100
CMS Quality Rating
18837 IROQUOIS WAY, LAKEVILLE, MN 55044(612) 467-1921 Get Directions Write a Review

NPPES record last updated: March 11, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Gregory Lloyd Thelen Thelen Md NPPES

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

DR. GREGORY LLOYD THELEN THELEN MD (NPI 1821186768) is an individual psychiatry provider in Lakeville, Minnesota, licensed in Minnesota (44617) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Owatonna Hospital, and is a graduate of Wright State University Boonshoft School Of Medicine (1992).

NPPES Registry Identity

NPI1821186768
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. GREGORY LLOYD THELEN THELENCredential: MD
Location Address18837 IROQUOIS WAYLakeville, MN 55044-4455
Mailing Address18837 Iroquois WayLakeville, MN 55044-4455 · (612) 467-1921
Phone(612) 467-1921
Sole ProprietorYes
Medical School CMSWright State University Boonshoft School Of MedicineGraduated 1992
Enumeration DateOctober 10, 2006
Last NPPES UpdateMarch 11, 2021
NPPES CertifiedMarch 11, 2021
✔ NPI 1821186768 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MN · 44617
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
18837 IROQUOIS WAY, Lakeville, MN 55044
Open in Google Maps ↗

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

Dr. Gregory Lloyd Thelen Thelen 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 ID1951341783
PECOS Enrollment IDI20050511000065
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

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
28 services17 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Owatonna Hospital

Acute Care Hospitals · Owatonna, MN
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number240069
Location2250 26th Street NorthwestOwatonna, MN 55060 · Steele County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55044 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
$168.28 typical visit price
range $56.00 – $168.28
Typical copayment $42.07 (range $14.00 – $42.07)
Most-billed visit code 99205
Established Patient
$69.74 typical visit price
range $18.32 – $138.04
Typical copayment $17.43 (range $4.58 – $34.51)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.53/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.79
Promoting Interoperability100
Improvement Activities40
Cost63.31

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 Gregory Thelen's NPI number?

The NPI number for Gregory Thelen is 1821186768. It was assigned to this individual provider in the NPPES registry on October 10, 2006.

Where is Gregory Thelen located?

Gregory Thelen practices at 18837 Iroquois Way, Lakeville, MN 55044. The listed phone number is (612) 467-1921.

What is Gregory Thelen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Gregory Thelen enrolled in Medicare?

Yes. Gregory Thelen 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.

Is Gregory Thelen affiliated with any hospitals?

According to CMS data, Gregory Thelen is affiliated with Owatonna Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Thelen was last updated on March 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.