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ERIN L GREER M.D.
NPI 1780662437
Internal Medicine - Nephrology in Sioux Falls, SD

Active since January 04, 2006Opted out of Medicare · through Jan 1, 2027
1315 S CLIFF AVE STE 2000, SIOUX FALLS, SD 57105(605) 322-5800(605) 322-5801 Get Directions Write a Review

NPPES record last updated: September 21, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Erin L Greer M.d. NPPES

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

ERIN L GREER M.D. (NPI 1780662437) is an individual nephrology provider in Sioux Falls, South Dakota, licensed in South Dakota (11992) and active in the NPI registry since January 2006. She has opted out of Medicare through January 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1780662437
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameERIN L GREERCredential: M.D.
Location Address1315 S CLIFF AVE STE 2000Sioux Falls, SD 57105-1058
Mailing Address1315 S Cliff Ave Ste 2000Sioux Falls, SD 57105-1058 · (605) 322-5800 · Fax (605) 322-5801
Phone(605) 322-5800
Fax(605) 322-5801
Sole ProprietorNo
Enumeration DateJanuary 4, 2006
Last NPPES UpdateSeptember 21, 2020
NPPES CertifiedSeptember 21, 2020
✔ NPI 1780662437 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in SD · 11992✔ Licensed in FL · ME106873
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1315 S CLIFF AVE STE 2000, Sioux Falls, SD 57105
Open in Google Maps ↗

Other Identifiers 5

OtherP00863917Rr Medicare
Medicaid002710800FL
Medicaid347970600MN
Other1499QFL · Bcbs Fl
OtherDP628ZFL · Medicare Ptan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Erin L Greer M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2025 through January 1, 2027.

Opt-Out Effective DateJanuary 1, 2025
Opt-Out In Effect ThroughJanuary 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 9

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
443 services265 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
151 services105 patients
Dialysis services, 2-3 physician visits per month (20 years or older) 90961
Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.
132 services24 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
70 services41 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
68 services33 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
50 services21 patients

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 4

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

WYATT KNOBLOCH
Nurse Practitioner (Family)
1315 S CLIFF AVE STE 2000
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-5800
HOLLY ANN LOUISE JENSEN DNP, ARNP
Nurse Practitioner (Family)
1315 S CLIFF AVE STE 2000
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-5800
DR. KEVIN MARQUEZ M.D.
Internal Medicine (Nephrology)
1315 S CLIFF AVE STE 2000
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-5800
MISS ELIZABETH MARIE KALLSEN CNP
Nurse Practitioner (Family)
1315 S CLIFF AVE STE 2000
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-5800

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 Erin Greer's NPI number?

The NPI number for Erin Greer is 1780662437. It was assigned to this individual provider in the NPPES registry on January 4, 2006.

Where is Erin Greer located?

Erin Greer practices at 1315 S Cliff Ave Ste 2000, Sioux Falls, SD 57105. The listed phone number is (605) 322-5800.

What is Erin Greer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Erin Greer enrolled in Medicare?

No. Erin Greer has opted out of Medicare through January 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does Erin Greer accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and Medica list Erin Greer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Erin Greer was last updated on September 21, 2020. 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.