GREGORY L GEISE MD
NPI 1144221938
Internal Medicine in Sioux Falls, SD

Q: What is Gregory Geise's NPI number?

The NPI number for Gregory Geise is 1144221938. It was assigned to this individual provider in the NPPES registry on August 3, 2005.

Q: What is Gregory Geise's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Geise was last updated on May 8, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since August 03, 2005PECOS EnrolledAccepts Medicare Assignment

1305 W 18TH ST, SIOUX FALLS, SD 57105(605) 328-4973(605) 328-1295 Get Directions Write a Review

NPPES record last updated: May 8, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Gregory L Geise Md NPPES

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

GREGORY L GEISE MD (NPI 1144221938) is an individual internal medicine provider in Sioux Falls, South Dakota, licensed in South Dakota (2769) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Ridgeview Medical Center, and is a graduate of Baylor College Of Medicine (1985).

NPPES Registry Identity

NPI1144221938

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameGREGORY L GEISECredential: MD

Location Address1305 W 18TH STSioux Falls, SD 57105-0401

Mailing Address1305 W 18th StSioux Falls, SD 57105-0401 · (605) 328-4973 · Fax (605) 328-1295

Phone(605) 328-4973

Fax(605) 328-1295

Sole ProprietorNo

Medical School CMSBaylor College Of MedicineGraduated 1985

Enumeration DateAugust 3, 2005

Last NPPES UpdateMay 8, 2008

✔ NPI 1144221938 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in SD · 2769

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

1305 W 18TH ST, Sioux Falls, SD 57105

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Other Identifiers 5

Medicaid5606924SD

Medicare PINS40073SD

Medicare UPING16019SD

Medicare PINP00360518SD

Medicare PINS40174SD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory L Geise 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 ID4981644630

PECOS Enrollment IDI20140319001700

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.

Medicare Billing Reassignments

Medicare enrollment records show Gregory Geise reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sibley Medical Center

152 mi

Critical Access

601 WEST CHANDLER STREET
Arlington, MN 55307

Reassigned Medicare billing, Minnesota enrollment
229 clinicians in this Medicare group

NPI 1740240225 (507) 964-2271

Minnesota Valley Health Center Inc

155 mi

Critical Access

621 S 4TH ST
Le Sueur, MN 56058

Reassigned Medicare billing, Minnesota enrollment
201 clinicians in this Medicare group

NPI 1730248907 (507) 665-3375

Ridgeview Medical Center

172 mi

General Acute Care Hospital

500 S MAPLE ST
Waconia, MN 55387

Reassigned Medicare billing, Minnesota enrollment
581 clinicians in this Medicare group

NPI 1275608457 (952) 442-2191

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

81 services80 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

44 services43 patients

Hospital Affiliations CMS Care Compare

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

Ridgeview Medical Center

Acute Care Hospitals · Waconia, MN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240056

Location500 South Maple StreetWaconia, MN 55387 · Carver County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 57105 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

$126.78 typical visit price

range $55.52 – $167.23

Typical copayment $31.69 (range $13.88 – $41.80)

Most-billed visit code 99204

Established Patient

$97.88 typical visit price

range $18.08 – $137.08

Typical copayment $24.47 (range $4.52 – $34.27)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEDD D BIALAS CRNA

Nurse Anesthetist, Certified Registered